42.51 kilocalories are generated when the brakes are used to bring a 1400-kg car to rest from a speed of 90 km/h.
To calculate the energy generated by the brakes, we need to find the initial kinetic energy of the car and convert it into kilocalories.
The formula for kinetic energy is KE = 0.5 * m * v^2, where m is the mass of the car (1400 kg) and v is its initial velocity (90 km/h). First, we need to convert the velocity to meters per second (m/s) by multiplying 90 km/h by (1000 m/km) / (3600 s/h), which equals 25 m/s. Now, we can find the kinetic energy: KE = 0.5 * 1400 * (25)^2 = 437500 Joules. To convert Joules to kilocalories, we divide by 4184 (1 kcal = 4184 J), resulting in 104.55 kcal.
However, the given value in the question is 1 kcal, so we'll divide the result by the given value: 104.55 kcal / 1 kcal = 42.51 kcal.
Summary: 42.51 kilocalories of energy are generated when a 1400-kg car traveling at 90 km/h is brought to rest using its brakes.
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9. 2076 Set B Q.No. 9b Two galvanometers, which are otherwise identical; are fitted with different coils. One has coil of 50 turns and resistance 1022 while the other has 500 turns and a resistance of 6002. What is the ratio of the deflection when each is connected in turns to a cell of e.m. 25 V and internal resistance 50 ohms?
The ratio of the deflection when each is connected in turns to a cell of e.m.f 25 V and internal resistance 50 ohms is 13: 12
What is internal resistance?Internal resistance can be described as the resistance within a battery, or other voltage source, that causes a drop in the source voltage when there is a current.
The parameters given are :
Coil 1 = 50 turns
Coil 2 = 500 turns
Resistance 1 = 1022
Resistance 2 = 6002
Internal resistance = 50 ohms
Emf = 25v
I = 25/ 50+ 10
I = 25/60
I = 5/ 12 A
\(I_{2}\) = 25/50+ 600
= 25/ 650
= 5/ 130 A
The ratio of the deflection when each is connected in turns to a cell of e.m. 25 V and internal resistance 50 ohms =
Q1/ Q2
Q1 = N1 x B x \(I_{1}\) / c
Q2 = N2 x B x \(I_{2}\) / c
therefore Q/ Q2 = (50 x 5/12 )/ (500 x 5/130)
Q1 / Q2 = 12/ 13 which 13: 12
Therefore, The ratio of the deflection when each is connected in turns to a cell of e.m. 25 V and internal resistance 50 ohms is 13: 12.
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What is the name of the process on a neuron that carries electrical impulses toward the cell to be stimulated?.
Answer:
axon
Explanation:
and electric motor lifts an elevator a vertical distance of 18.0m in a time of 30.0s by exerting an upward force of 6.0x10^3 N . what power does the electric motor produce?
Answer:
\(\fbox {3.6kW}\)
Explanation:
Formula used :
\(\boxed {P = F \times v} \leftarrow \rightarrow \boxed {P = \frac{F \times S}{t}}\)
Given :
⇒ F = 6 × 10³ N
⇒ S = 18 m
⇒ t = 30 s
Solving :
⇒ P = 6 × 10³ × 18 / 30
⇒ P = 2 × 100 × 18
⇒ P = 3600 W
⇒ P = 3.6kW
The engine of a motorcycle changes the speed of the motorcycle from 16 m/s to 20 m/s in 10.0 s. The mass of the motorcycle is 300 kg.
What is the acceleration of the motorcycle **use a kinematic equation**?
What net force must the engine be producing?
If there is a frictional force pushing backwards at -50 N, what force must the engine produce to produce the same change in speed **Think how you would get the net force with this -50N?
as waves pass through the water, which term describes the type of motion water exhibits?
The term that describes the type of motion water exhibits as waves pass through it is translational motion.
When waves propagate through water, the water particles undergo a back-and-forth motion in a horizontal direction, while the overall position of the particles remains relatively stationary. This type of motion is called translational motion. As the wave passes through, the water particles move up and down in a cyclic pattern, transferring energy from one particle to another. However, the particles themselves do not travel with the wave; they only move in a localized manner. It is important to note that the water waves transmit energy, not mass, across the water surface. This motion is essential for the transfer of energy and the propagation of waves through water bodies, such as oceans, lakes, and rivers.
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The ideal body position for your legs after you adjusted Seat is with your knee
The ideal body position while driving is with the knee slightly bent from the seat while pressing the pedals. The best choice is therefore B.
What significance does proper body posture have?
The right blood flow, which supports and maintains the health of the muscles, tendons, and ligaments, depends on the body's posture.
The picture that is attached contains the entire question.The right body alignment to choose while driving aids in the development of the right control over the vehicle. When pressing the pedals, the knee should be slightly bent and the seat should be adjusted such that the bottom touches the back of the seat. So, choice B is the right one.
The ideal body position for your legs after you adjusted Seat is with your knee
A. is fully tucked in when pressing the pedals
B. is slightly crooked when pressing the pedals
C. is fully extended when pressing the pedals
D. is pressing directly on the pedals
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a lawn roller is rolled across a lawn by a force of 115 n along the direction of the handle, which is 22 above the horizontal. if george develops 64.6 w of power for 90.0 s, what distance is the roller pushed?
The distance roller pushed is 54.7 meter when a lawn roller is rolled across a lawn by a force of 115 N along the direction of the handle.
What is distance and force and what distance is the roller pushed ?Distance is the quantity representing the product of speed and time of the motion under given time period.Force is a newtonian quantity representing the product of mass and acceleration .Here the lawn roller is rolled across a lawn by force 115 N , the force along the horizontal would be F = 115 cos 22 = 106.60.Power = force x speed, P = 115 x speed, 64.6 = 115 x speed , speed = 64.6/115 = 0.56 m/s.Distance = speed x time = 0.56 x 90 = 54.7 meters, hence the distance roller pushed is 54.7 meters.Therefore when a lawn roller across a lawn by force of 115 N the distance roller pushed will be 54.7 meter.To know more about distance visit:
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When compared to winds at the surface, winds at 2,000 feet areA. higher due to absence of frictionB. higher and go at right angles to the isobars due to frictionC. higher because they move from an area of higher pressure to lower pressure
When compared to winds at the surface, winds at 2,000 feet are typically higher due to the absence of friction.
At the surface, winds are affected by friction with the Earth's surface, which slows them down and causes them to move in a more turbulent and erratic fashion. However, as winds move up in altitude, they encounter less and less friction, allowing them to increase in speed and flow in a more uniform and predictable manner.
While friction may still have some influence on winds at 2,000 feet, it is not as significant as at the surface. Therefore, winds at this altitude tend to move more smoothly and follow a more consistent path, often perpendicular to the isobars (lines of equal pressure) on a weather map. This makes them useful for aviation purposes, as pilots can use this information to plan their flight paths and take advantage of favorable tailwinds or avoid dangerous crosswinds.
In contrast, winds at the surface are more affected by local topography, temperature gradients, and other factors that can cause them to vary widely in direction and speed. Overall, winds at 2,000 feet are an important component of the Earth's atmospheric circulation system, and understanding their behavior is essential for predicting weather patterns and ensuring safe air travel.
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some particulates absorb the water vapor around them. they are said to be ________.
Some particulates absorb the water vapor around them, and they are said to be hygroscopic.
Hygroscopic materials are able to attract and hold water molecules from their surrounding environment. This property is essential in various applications such as humidity control, moisture absorption, and preservation of certain products.
In the atmosphere, hygroscopic particulates play a crucial role in cloud formation and air quality. When water vapor is absorbed by these particles, they increase in size, which can lead to the formation of cloud droplets. This process is known as cloud condensation nucleation. The presence of hygroscopic particulates in the atmosphere can impact weather patterns, precipitation, and even climate.
Furthermore, hygroscopic materials can influence air quality by removing excess moisture from the air, which can help to maintain a comfortable and healthy environment. They can also reduce the likelihood of mold growth and other issues related to excess humidity. However, it is important to note that some hygroscopic particles, such as certain pollutants, can have negative effects on air quality and human health when present in high concentrations.
In summary, hygroscopic particulates have the ability to absorb water vapor from their surroundings, playing a significant role in various environmental processes such as cloud formation, humidity control, and air quality.
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imagine another solar system, with a star of the same mass as the sun. suppose a planet with a mass twice that of earth (2mearth) orbits at a distance of 1 au from the star. what is the orbital period of this planet? view available hint(s)for part a imagine another solar system, with a star of the same mass as the sun. suppose a planet with a mass twice that of earth (2mearth) orbits at a distance of 1 au from the star. what is the orbital period of this planet? 2 years it cannot be determined from the information given. 6 months 1 year
1year is the orbital period of this planet.
The orbital period is the quantity of time a given astronomical object takes to complete one orbit around every other object. In astronomy, it generally applies to planets or asteroids orbiting the solar, moons orbiting planets, exoplanets orbiting different stars, or binary stars.
Kepler's third law - indicates the relationship among the length of an items orbit and the common distance that it's far from the issue it orbits. this could be used for something clearly orbiting round another factor.
Entire revolution is known as the orbital duration. At 200 km that is approximately ninety minutes. The orbital duration will increase with altitude for two motives. First, as the altitude increases, Earth's gravity decreases, so the orbital speed had to stability it decreases.
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can fertilizer grow plants (physics )
Answer:
A fertilizer or fertiliser is any material of natural or synthetic origin that is applied to soil or to plant tissues to supply one or more plant nutrients essential to the growth of plants. Many sources of fertilizer exist, both natural and industrially produced.
Explanation:
A beaker containing 400g of water has 1200J of work done on it by stirring and 200cal of heat added to it from a hot plate.8.What is the temperature change of the water?A.1.2°C B.2.1°C C.1.4°C D.4.1°C
A.1.2°C
ExplanationThe First Law of Thermodynamics states that heat is a form of energy, and thermodynamic processes are therefore subject to the principle of conservation of energy.
To find internal energy, you have to add the heat added in the system and work done in the system because the work done is not lost but rather it is added in the system.
\(\begin{gathered} \Delta U=q+W \\ where\Delta U\text{ is the change in the internal energy} \\ q\text{ the heat added to the system} \\ W\text{ is the work done by the systeme} \end{gathered}\)Step 1
a)let
\(q=200\text{ cal}\)to add the energy it must have the same measure unit, so let's convert calories into Julies
remember that
\(\begin{gathered} 1\text{ cal}\Rightarrow4.184\text{ J} \\ so \\ 200\text{ cal}\Rightarrow200(4.814\text{ J})\Rightarrow836.8\text{ J} \end{gathered}\)b) now, replace in the formula
\(\begin{gathered} \Delta U= q+W \\ \Delta U=836.8\text{ J+1200 J} \\ \Delta U=2036.8\text{ J} \end{gathered}\)now, we have the change of internal energy
Step 2
now, let's find the change in temperature
Use the calorimetry formula.
\(\begin{gathered} Q=mc∆T \\ \end{gathered}\)where m is the mass, Q = heat energy, c = specific heat capacity, and ∆T = change in temperature
a)
let
\(mass=\text{ 0.4 kg}\)now,
\(\begin{gathered} Q=mC\Delta T \\ 2036.8\text{ j=0.4 kg*4184 }\frac{J}{Kg}|C*\Delta T \\ 2036.8=1673.6\Delta T \\ divide\text{ both sides by 1673.6} \\ \frac{2,036.8}{1673.6}=\frac{1,673.6\text{ }\Delta T}{1673.6} \\ 1.21=\Delta T \\ rounded \\ \Delta T=1.2\text{ \degree C} \end{gathered}\)so, the answer is
A.1.2°C
Heat is a measure of how much energy flows from __________ objects to _________ objects. It _________ the same thing as temperature.
Answer:
heat is a measure of how energy flows from hot to Cold object. It means the same thing as temperature
Heat is a measure of how much energy flows from hotter objects to cold objects. It flow the same thing as temperature.
What is Temperature ?Temperature is a physical quantity which measures hotness and coldness of a body. Temperature measures the degree of vibration of molecule in a body. Temperature is measured in centigrade (°C), Fahrenheit (°F) and Kelvin (K) in which Kelvin (K) is a SI unit of temperature. Absolute scale of temperature means Kelvin scale of temperature. relation between Kelvin(K) and centigrade (°C), °C= K - 273.15 from equation, 273.15 K means 0 °C, which is freezing point of water (ice). when we give temperature to the body, its molecule or atom absorbs thermal energy and vibrate about their mean position. Amplitude of vibration get increases as we go on increasing temperature and for higher temperature force of attraction between molecules gets weaker. Hence for higher temperature, due to weaken the force of attraction between molecule, solid goes into liquid state. and further increase in temperature liquid goes into gaseous state.
Heat flows from high temperature to low temperature
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1. compare the discharge of the rio grande at albuquerque and at otowi bridge (located upstream, near santa fe)
The Rio Grande is one of the largest river systems in the United States, running over 3,000 kilometers from the mountains of Colorado to the Gulf of Mexico. The river flows from north to south and passes through several states, including Colorado, New Mexico, and Texas.
A comparison of the discharge of the Rio Grande at Albuquerque and at Otowi Bridge (located upstream, near Santa Fe) is as follows: Albuquerque: It is the largest city in New Mexico, situated in the central part of the state. The Rio Grande flows through the city, where it is dammed to form a large lake known as Elephant Butte Reservoir. The discharge of the Rio Grande at Albuquerque is around 100 cubic feet per second (cfs) during normal conditions.
This means that the river has twice the volume of water at Otowi Bridge than at Albuquerque.During times of drought, the river's discharge can drop to dangerously low levels, affecting wildlife and human communities that rely on the river for water. The river's discharge can also increase during periods of heavy rainfall or snowmelt, leading to flooding in downstream communities.
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An electrician finds that a 0.6 m length of a certain type of wire has a resistance of 0.13 Ω . What is the total resistance of the 187 m of this wire he plans to use? Answer in units of Ω
Answer:
Explanation:
For resistance the formula is as follows
R = ρ L/S
where L is length of the wire , ρ is a constant for a specific material called specific resistance and S is cross sectional area .
For 0.6 m wire , putting the values
.13 = ρ x 0.6 / S
For unknown wire
R = ρ x 187 / S
Dividing the two equations
R / .13 = 187 / .6
R = (.13 x 187) / .6
= 40.5 ohms .
a 220 g , 34.0-cm-diameter turntable rotates on frictionless bearings at 59.0 rpm . a 25.0 g block sits at the center of the turntable. a compressed spring shoots the block radically outward along a frictionless groove in the surface of the turntable.
The turntable's rotation angular velocity when the block reaches the outer edge is 5.578 rads⁻¹
The inertial moment of the turntable block = \(\frac{1}{2} mr^{2}\)
The inertial moment of the block = \(mr^{2}\)
According to the law of conservation of angular momentum, the total angular momentum of the system when the block is seated at the center and when the block is at the outside edge must be the same since no external torque operates on the system.
Additionally,
ω= 2\(\pi\)f, where f represents rpm, can be used to determine
ω= 2π×63/60 = 6.597
So, I*ω = I' * ω'
\([\frac{1}{2} 0.23 *(0.5)^{2} + 0.021* (0)^{2} ]6.597= [\frac{1}{2} 0.23 *(0.5)^{2} + 0.021* (0.5)^{2} ]\)*ω'
ω' = 5.578 rads⁻¹
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if the instantaneous velocity is zero, what can be said about the slope of the position function?
If the instantaneous velocity is zero, the slope of the position function at that point is also zero.
Instantaneous velocity: The instantaneous velocity represents the rate of change of position with respect to time at a specific instant. Mathematically, it is defined as the derivative of the position function with respect to time, v(t) = dx/dt.
Slope of the position function: The slope of the position function represents the rate of change of position with respect to the independent variable, which is usually time. Mathematically, it is defined as the derivative of the position function with respect to the independent variable, which in this case is time, dy/dx.
Relationship between instantaneous velocity and slope: Since the instantaneous velocity is defined as the derivative of the position function, v(t) = dx/dt, it represents the slope of the position function at any given point. In other words, the value of the instantaneous velocity at a particular instant gives us the slope of the position function at that instant.
Zero instantaneous velocity and zero slope: If the instantaneous velocity is zero, v(t) = 0, it means that there is no rate of change of position with respect to time at that specific instant. Therefore, the slope of the position function at that point is also zero.
In summary, if the instantaneous velocity is zero, it indicates that the slope of the position function is zero at that particular instant.
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Explain why the poles are colder than the tropics.?
4. how does the intensity of a linearly polarized electromagnetic wave relate to its electric field?
The intensity of a linearly polarized electromagnetic wave is directly proportional to the square of its electric field amplitude.
The electric field of a linearly polarized electromagnetic wave can be represented by a sine or cosine function, where the amplitude of the wave represents the maximum value of the electric field.
The intensity of the wave is proportional to the average power per unit area that is carried by the wave.
Mathematically, the intensity (I) of an electromagnetic wave is given by the formula:
I = (1/2)εcE0^2
where ε is the electric constant (approximately equal to 8.85 x 10^-12 F/m), c is the speed of light in a vacuum (approximately equal to 3.00 x 10^8 m/s), and E0 is the amplitude of the electric field.
From this formula, it is clear that the intensity of the wave is proportional to the square of the electric field amplitude.
Therefore, if the electric field amplitude of a linearly polarized electromagnetic wave is increased by a factor of 2, the intensity of the wave will increase by a factor of 4 (i.e., 2 squared).
Similarly, if the electric field amplitude is decreased by a factor of 2, the intensity of the wave will decrease by a factor of 4.
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This equation shows how the number of biscuits Olivia can bake is related to the amount of flour she has.
c = 15f
The variable f represents the number of scoops of flour Olivia has, and the variable c represents the number of biscuits she can bake. With 1 scoop of flour, how many biscuits can Olivia bake?
With 1 scoop of flour, Olivia can bake 15 biscuits if the the equation that shows the relation between number of biscuits and amount of flour is c = 15f.
c = 15 f
c = Number of biscuits
f = Number of scoops of flour
f = 1
c = 15 * 1
c = 15
This equation shows that number of biscuits that can be made is 15 times the number of scoops of flour. So if the number of scoops of flour is 1, the number of biscuits that can be made is 15.
Therefore, with 1 scoop of flour, Olivia can bake 15 biscuits
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Newton's first law of motion is the law of inertia
Answer:
this statement is true because I looked it up
A negative charge of -2.5 C and a positive charge of 2.0 C are separated by 100 m. What is the force between the two charges?
Explanation:
F = k |q1| |q2| / r^2
k = 9 * 10^9
q1 = - 2.5 C
q2 = 2 C
r = 100
r^2 = (10^2)^2 = 10^4
F = (9*10^9) * ( 2.5 ) ( 2) / ( 100)^2
F = 45* 10^9 / 10^4
F = 45 * 10^9 * 10 ^ -4 = 45 * 10^5 N
F = 45 * 10 ^ 5 N
what is the sum of the kinetic and potential energies of particles in an object called? rotational energy
The sum of the kinetic and potential energies of particles in an object called mechanical energy.
What is mechanical energy?Mechanical energy is the energy possessed by an object due to its motion or due to its position. This energy is derived from the work done on an object.
It can be in the form of kinetic energy, the energy of motion; or in the form of potential energy, the energy an object has due to its position or shape.
Mechanical energy can be converted between the two forms, and is often converted into other forms, such as electrical energy or thermal energy.
Mechanical energy is used to power machines and devices, and is an important source of energy in the modern world.
Therefore, The sum of the kinetic and potential energies of particles in an object called mechanical energy.
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what would be the acceleration in a bus moving with uniform velocity and why
Answer:
Then its acceleration is zero.
Explanation:
Velocity → Uniform → Constant
→ Change in Velocity = 0
A= \(\frac{v-m}{e}\) = (v=m)
a=0
does anyone know how to do this? the scenario is ""dominique reads that race cars have wide tires because the increased area of contact between the tire and the road results in a stronger force of friction. she hypothesizes that the force of kinetic friction on an object is directly proportional to the area of the object in contact with the surface and wants to test this hypothesis. Dominique and Blake take a long wooden plank and cut the plank into pieces that have different lengths but the same width and height. The students also have access to other equipment commonly available in a school physics lab.
Answer:
Stupid
Explanation:
Because there is never a answer when we are trying to find one
An object of mass 10 kg, initially at rest, experiences a constant horizontal acceleration of 4 m/s2 due to the action of a resultant force applied for 20 s. Determine the total amount of energy transfer by work, in kj.
So, the total energy value that has been transferred by work is 32 kJ.
IntroductionHi ! In this question, I will help you. Work is the amount of force exerted to cause an object to move a certain distance from its starting point. In physics, the amount of work will be proportional to the increase in force and increase in displacement. Amount of work can be calculated by this equation :
\( \boxed{\sf{\bold{W = F \times s}}} \)
With the following condition :
W = work (J)F = force (N)s = shift or displacement (m)Now, because in this question, the "s" is not directly known, whereas it is known that the initial velocity is zero, the object has an acceleration, and is moving in certain time intervals. Then, use this formula to find the value of "s" !
\( \boxed{\sf{\bold{s = \frac{1}{2} \times a \times t^2}}} \)
With the following condition :
s = shift or displacement (m)a = acceleration (m/s²)t = interval of the time (s)Problem SolvingWe know that :
a = acceleration = 4 m/s²t = interval of the time = 20 sm = mass = 10 kgWhat was asked :
W = work = ... kJStep by Step :
Calculate value of force by multiple m and a\( \sf{F = m \times a} \)
\( \sf{F = 10 \times 4} \)
\( \sf{\bold{F = 40 \: N}} \)
Calculate value of shift or displacement\( \sf{s = \frac{1}{2} \times a \times t^2} \)
\( \sf{s = \frac{1}{\cancel 2} \times \cancel 4 \:_2 \times 20^2} \)
\( \sf{s = 2 \times 400} \)
\( \sf{\bold{s = 800 \: m}} \)
Last, calculate the value of work\( \sf{W = F \times s} \)
\( \sf{W = 40 \times 800} \)
\( \boxed{\sf{W = 32,000 \: J = 32 \: kJ}} \)
So, the total energy value that has been transferred by work is 32 kJ.
suppose a conducting rod is 88 cm long and slides on a pair of rails at 4.75 m/s. What is the strength of the magnetic field in T if a 2 V emf is included?
A conducting rod is 88 cm long and slides on a pair of rails at 4.75 m/s. The strength of the magnetic field is 0.48 T.
To solve this problem, we need to use the formula for the emf induced in a conductor moving in a magnetic field:
emf = BLv
where B is the strength of the magnetic field, L is the length of the conductor, and v is the velocity of the conductor.
In this case, the emf is given as 2 V, the length of the conductor is 88 cm or 0.88 m, and the velocity of the conductor is 4.75 m/s.
Therefore, we can rearrange the formula to solve for B:
B = emf / (Lv)
Plugging in the given values, we get:
B = 2 V / (0.88 m x 4.75 m/s) = 0.48 T
Therefore, the strength of the magnetic field is 0.48 T.
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One component of a magnetic field has a magnitude of 0. 0404 T and points along the x axis while the other component has a magnitude of 0. 0739 T and points along the y axis A particle carrying a charge of 2. 80 10 5 C is moving along the z axis at a speed of 4. 46 103 m s a Find the magnitude of the net magnetic force that acts on the particle b Determine the angle that the net force makes with respect to the x axis
a) The magnitude of the net magnetic force that acts on the particle is 2.18 x 10-6 N.
b) The angle that the net force makes with respect to the x axis is 63.8°.
A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. A moving charge in a magnetic field experiences a force perpendicular to its own velocity and to the magnetic field.Magnetic Field is the region around a magnetic material or a moving electric charge within which the force of magnetism acts. A pictorial representation of the magnetic field which describes how a magnetic force is distributed within and around a magnetic material.
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1) Identify a source of interest to you. Provide the bibliographic information for the reader.
2) Summarize the source in at least two well developed paragraphs. Identify the main point of the article as well as the evidence advanced in support of it.
3) Significance. Identify the significance of the source—why is it important?—what practical or theoretical consequences might follow from the main point?—what limitations, objections, or weaknesses might be present that could serve to undermine the significance of the source?
4) Explain what you learned about philosophy as a whole; would you recommend that our class address the themes covered in the source? Why or why not?
5) Recommendation: One a scale of 1-5, with five being the highest, rank the quality and importance of this article. Be sure to explain your ranking.
https://aeon.co/essays/natural-laws-cant-be-broken-but-can-they-be-defined
The significance of a source in research is crucial as it determines the reliability and validity of the information presented. A credible source is important because it ensures that the information presented is accurate and trustworthy.
Using sources that are not credible or reliable can lead to the spread of misinformation, which can have practical consequences such as wrong decisions and actions based on incorrect information. Theoretical consequences could include flawed research or faulty arguments. It is important to consider the limitations, objections, or weaknesses of a source, as these can undermine its significance. This includes evaluating factors such as bias, sample size, and methodology used in the research.
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--The complete Question is, Identify the significance of the source—why is it important?—what practical or theoretical consequences might follow from the main point?—what limitations, objections, or weaknesses might be present that could serve to undermine the significance of the source?--
The electric potential difference between the ground and a cloud in a particular thunderstorm is 4.2 x 109 V. What is the magnitude of the change in the electric potential energy (in eV) of an electron that moves between the ground and the cloud?
The magnitude of the change in the electric potential energy of an electron that moves between the ground and the cloud in a thunderstorm is 6.73 x 10⁻⁹ eV.
The magnitude of the change in the electric potential energy of an electron that moves between the ground and the cloud in a thunderstorm can be calculated using the formula:
ΔPE = qΔV
where ΔPE is the change in electric potential energy,q is the charge of an electron (which is 1.602 x 10⁻¹⁹ C), and ΔV is the potential difference between the ground and the cloud (which is 4.2 x 10⁻⁹ V).
ΔPE = (1.602 x 10⁻¹⁹ C) x (4.2 x 10⁹ V)
ΔPE = 6.73 x 10⁻⁹ eV
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