The correct answers are up, down, into the screen, and out of the screen.
When a charge is moving at an angle of 90 degrees to a magnetic field, it experiences no magnetic force. When a charge is moving parallel or anti-parallel to a magnetic field, it does not experience magnetic force.
Check all that apply in the following list: UpDownLeftRightInto the screenOut of the screen
A magnetic field is a field created by an electrical charge in motion, such as an electron or a current through a wire. A magnetic field's direction is determined by the direction of the current, with north and south poles corresponding to the direction of the current.
When a charged particle travels through a magnetic field, it experiences a magnetic force.The charge moves and experiences no magnetic force when it is perpendicular to the magnetic field.
Therefore, the correct answers are up, down, into the screen, and out of the screen.
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How plants are in the
Solora System
Answer:
there was 9 but pluto got kicked out of the solar System so 8
a spaceship approaches the moon, traveling at 0.5c with respect to the moon. its crew shines a laser at the moon. the beam strikes a lunar mirror and is reflected back to the ship. the crew on the ship will measure the speed of the reflected beam to be
The crew on the spaceship will measure the speed of the reflected beam to be the speed of light (c).
According to the theory of relativity, the speed of light is constant and does not change based on the motion of the observer or the source of the light. Therefore, even though the spaceship is traveling at 0.5c with respect to the moon, the speed of the reflected beam will still be c as it travels back to the ship.
This phenomenon is known as the principle of relativity and is a fundamental concept in modern physics. It means that the laws of physics are the same for all observers, regardless of their relative motion. In this case, the crew on the spaceship and the observers on the moon would both measure the speed of light to be c, even though they are moving relative to each other.
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if the circuit has a current of 0.021a, what must the electrical potential difference across the battery be?
To calculate electrical potential difference across the battery, the resistance of the circuit is required. Therefore the given question is incomplete.
Describe resistance.The ability of the material to restrict the flow of current is referred to as resistance. It is symbolized by the letter 'R'. The ohm, frequently written as a word and sometimes represented by the Greek letter omega, is the unit of resistance that is commonly used.
How does resistance develop in a circuit?As electrons pass from a conductor, such a metal wire, an electric current occurs. The atoms in the metal may clash with the travelling electrons. Resistance is created as a result, making it more challenging is for current to flow.
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a change in state involves a change in the______of the particles
Answer: Energy
Explanation: Any change in the states of matter is the result of added or lost energy. For example, when Water is frozen, it loses all of its particle energy, which is why when it's ice, all the particles stick together, but if you boiled the water to make vapor, they fly around like crazy because they have a lot of energy.
step by step process please
I know the ans but not the process
pic attached
Answer:
\(\huge\boxed{\sf F= 350 \ N}\)
Explanation:
Considering pivot as the central point,
Key:
Torque = Force F × radius rAnticlockwise torque = Clockwise torque\(F_1r_1=F_2r_2\)
Here,
Anticlockwise force is FClockwise force is 600 N\(r_1=70+50= 120 \ cm = 1.2 \ m\)\(r_2=70 \ cm = 0.7 \ m\)Solution:Substitute the givens in the above formula.
\(F(1.2)=600(0.7)\\\\F(1.2)=420\\\\Divide \ 1.2 \ to \ both \ sides\\\\F=420/1.2\\\\F= 350 \ N\\\\\rule[225]{225}{2}\)
What factors affect an objects kinetic energy?
Answer:
friction
air drag
every thing that opposes the motion affects kinetic energy
Explanation:
kinetic energy is a energy which is increase with increase in motion and potential energy is energy stored while the object is at rest
potential energy ∝ 1/(kinetic energy)
as kinetic energy increases potential energy decreases
A park ranger driving on a back country road suddenly sees a deer in his headlights 20
m ahead. The ranger, who is driving at 11.4 m/s, immediately applies the brakes and
slows down with an acceleration of 3.80 m/s2. How much distance is required for the
ranger's vehicle to come to rest? Only enter the number, not the units.
Answer:
17.1
Explanation:
The distance ahead, of the deer when it is sighted by the park ranger, d = 20 m
The initial speed with which the ranger was driving, u = 11.4 m/s
The acceleration rate with which the ranger slows down, a = (-)3.80 m/s² (For a vehicle slowing down, the acceleration is negative)
The distance required for the ranger to come to rest, s = Required
The kinematic equation of motion that can be used to find the distance the ranger's vehicle travels before coming to rest (the distance 's'), is given as follows;
v² = u² + 2·a·s
∴ s = (v² - u²)/(2·a)
Where;
v = The final velocity = 0 m/s (the vehicle comes to rest (stops))
Plugging in the values for 'v', 'u', and 'a', gives;
s = (0² - 11.4²)/(2 × -3.8) = 17.1
The distance the required for the ranger's vehicle to com to rest, s = 17.1 (meters).
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Answer:
4.2 is the answer
Explanation
The image formed in a plane mirror is an equal distance behind the mirror as the object in front of it.
Step 1: the equation to this problem would be: 8.4/2
Step 2: 8.4 ÷ 2 = 4.2
Hope you could understand.
If you have any query, feel free to ask.
describe how the milky way's light output compares with those of the most luminous galaxies in the blue cloud, based on the information in
The Milky Way is near the top of the luminosity range for blue cloud galaxies. Spiral galaxies usually have a luminosity of a few hundred billion Suns and Milky Way's luminosity is about 1.5 x 10¹⁰, making it near the top of the blue cloud galaxies.
Generally, a galaxy's absolute magnitude (a measure of luminosity) is related to its mass. The relationship can be visualized in a galaxy color-magnitude diagram with three populations:
Red sequence: includes most red galaxies that are usually elliptical shaped. They are red because of a highly far distance, contain many old, red stars, or are really dusty.Green valley: composed of either late-type galaxies (star formation is getting exhausted) or early-type galaxies.Blue cloud: includes most blue galaxies that are usually spiral-shaped.The Milky Way is a spiral galaxy. Spiral galaxies usually produce more stars because the spiral arms generate dense compression areas that provide a good environment for the formation of stars.
Your question seems incomplete, but most likely the completed version is as follows:
The luminosity of our Milky Way galaxy is about 1.5 x 10¹⁰ Lsun. Describe how the Milky Way's light output compares with those of the most luminous galaxies in the blue cloud, based on the information in Figure 1.
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why is it important to remember that the 100x lens is longer than the lower power lens
It is important to remember that the 100x lens is longer than the lower power lens because it affects the way we view and analyzes specimens under a microscope.
The higher magnification power of the 100x lens allows us to see more detail and smaller structures that may not be visible with a lower-power lens. However, the trade-off is that the field of view is smaller and the depth of field is shallower. Therefore, it is important to use the appropriate lens for each stage of observation and analysis to ensure accurate and comprehensive results. Additionally, mishandling or improper use of the higher-power lens can damage both the lens and the specimen being viewed.
It is important to remember that the 100x lens is longer than the lower power lens because the higher magnification achieved by the 100x lens requires a longer focal length. A longer focal length allows for greater image detail and resolution, which is essential for observing and analyzing small or intricate specimens under the microscope. Additionally, the increased working distance between the 100x lens and the specimen helps prevent potential damage to both the sample and the lens. Therefore, understanding the differences in lens length is crucial for effectively using a microscope and obtaining accurate, high-quality images of the subject being examined.
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I have the answer, but I don’t know how to get the answer. Can anyone explain how to get it?
A generator with no-load frequency of 51.0 Hz and a slope (Sp) of Y MW/Hz is connected to the Load 1 (Y MW and 0.8 PF lagging) and Load 2 (0.75Y MVA and 0.75 PF lagging) through transmission line (Zline = j 1 Ohm). If the voltage at load side is kept constant of 1000 Z0® Volt, Calculate !
Scenario 1: The generator is directly connected to the Loads
G Zline = j1 ohm Load 1 1 MW 0.8 Lagging Load 2 0,8 MVA 0,8 lagging VLoad = 1000/0° V
a. Find the operating frequency of the system before the switch (load 2) is closed.
b. Find the operating frequency of the system after the switch (load 2) is closed.
c. What action could an operator take to restore the system frequency to 50 Hz after both loads are connected to the generator?
Scenario 2: The generator is connected to the Loads through Transformer
1:10 10:1 VLoad = 1000Z0° V Load 1 1 MW G Zline =j1 ohm 0.8 Lagging Load 2 0,8 MVA 0,8 lagging
a. Find the operating frequency of the system before the switch (load 2) is closed.
b. Find the operating frequency of the system after the switch (load 2) is closed.
c. What action could an operator take to restore the system frequency to 50 Hz after both loads are connected to the generator?
Scenario 1:
a. The operating frequency of the system before the switch (load 2) is closed is approximately 50.2 Hz.
b. The operating frequency of the system after the switch (load 2) is closed remains approximately 50.2 Hz.
c. Increase the mechanical input power to the generator and Decrease the loads
Scenario 2:
a. The operating frequency of the system before the switch (load 2) is closed is approximately 50.2 Hz.
b. The operating frequency of the system after the switch (load 2) is closed remains approximately 50.2 Hz.
c. Increase the mechanical input power to the generator and Decrease the loads.
Scenario 1: Generator directly connected to the loads
a. To find the operating frequency of the system before the switch (load 2) is closed, we need to consider the power balance equation:
Total power supplied by the generator = Power consumed by Load 1 + Power consumed by Load 2
The total power supplied by the generator can be calculated using the formula:
Total power = No-load frequency (f0) * Slope (Sp)
Total power = 51.0 Hz * Y MW/Hz = 51Y MW
The power consumed by Load 1 can be calculated using the formula:
Power consumed by Load 1 = Load 1 (Y MW) * Power factor (0.8 lagging)
Power consumed by Load 1 = Y MW * 0.8 = 0.8Y MW
To find the power consumed by Load 2, we'll convert it to apparent power since we're given the power factor in terms of lagging.
Apparent power consumed by Load 2 = Load 2 (0.8 MVA) * Power factor (0.8 lagging)
Apparent power consumed by Load 2 = 0.8 MVA * 0.8 = 0.64 MVA
To convert the apparent power to real power, we'll use the formula:
Real power consumed by Load 2 = Apparent power * Power factor
Real power consumed by Load 2 = 0.64 MVA * 0.8 = 0.512 MW
Now, we can set up the power balance equation:
51Y MW = 0.8Y MW + 0.512 MW
Simplifying the equation:
50.2Y MW = 0.512 MW
Y ≈ 0.0102 MW
Therefore, the operating frequency of the system before the switch (load 2) is closed is approximately 50.2 Hz.
b. After the switch (load 2) is closed, the total power consumed by the system will increase to Y MW + 0.512 MW.
The new power balance equation will be:
51Y MW = 0.8Y MW + 0.512 MW
Simplifying the equation:
50.2Y MW = 0.512 MW
Y ≈ 0.0102 MW
The operating frequency of the system after the switch (load 2) is closed remains approximately 50.2 Hz.
c. To restore the system frequency to 50 Hz after both loads are connected to the generator, the operator can take the following action:
1. Increase the mechanical input power to the generator: By increasing the mechanical input power, the generator will produce more electrical power and help restore the system frequency to 50 Hz.
2. Decrease the loads: If the loads can be reduced, the total power consumed by the system will decrease, which will help bring the frequency back to 50 Hz.
Scenario 2: Generator connected to the loads through a transformer
a. Before the switch (load 2) is closed, the operating frequency of the system can be calculated using the same power balance equation as in Scenario 1:
Total power = No-load frequency (f0) * Slope (Sp)
Total power = 51.0 Hz * Y MW/Hz = 51Y MW
Power consumed by Load 1 = Y MW * 0.8 = 0.8Y MW
Real power consumed by Load 2 = 0.8 MVA * 0.8 = 0.64 MVA *
0.8 = 0.512 MW
Setting up the power balance equation:
51Y MW = 0.8Y MW + 0.512 MW
Simplifying the equation:
50.2Y MW = 0.512 MW
Y ≈ 0.0102 MW
Therefore, the operating frequency of the system before the switch (load 2) is closed is approximately 50.2 Hz.
b. After the switch (load 2) is closed, the total power consumed by the system will increase to Y MW + 0.512 MW.
The new power balance equation will be:
51Y MW = 0.8Y MW + 0.512 MW
Simplifying the equation:
50.2Y MW = 0.512 MW
Y ≈ 0.0102 MW
The operating frequency of the system after the switch (load 2) is closed remains approximately 50.2 Hz.
c. To restore the system frequency to 50 Hz after both loads are connected to the generator, the operator can take the same actions mentioned in Scenario 1:
1. Increase the mechanical input power to the generator.
2. Decrease the loads.
These actions will help bring the frequency back to the desired 50 Hz.
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According to Newton's second law, when the same force acts on two bodies, the body with the larger mass will have the ________ acceleration.
Answer:
least acceleration
Explanation:
When forces are balanced and mases are different, different mases experience different accelerations to maintain the constant force.
Ms. Kasper is in a panic. Her cat, Penny, is stuck in a tree and about to jump out. In order to save her cat, Ms. Kasper needs to run to the tree, 12 meters away. If it takes her cat, 3 seconds to fall, how fast would Ms. Kasper have to run to save her cat?
Answer:
Speed greater than 4 m/s
Explanation:
Given that Ms. Kasper is in a panic. Her cat, Penny, is stuck in a tree and about to jump out. In order to save her cat, Ms. Kasper needs to run to the tree, 12 meters away. If it takes her cat, 3 seconds to fall, how fast would Ms. Kasper have to run to save her cat?
The distance = 12 m
Time = 3s
Speed = distance/time
Speed = 12/3
Speed = 4 m/s
Ms Kasper must run at speed more than 4m/s for her to save the cat.
A 0.14-kilogram baseball is thrown in a straight line at a velocity of 30 m/sec. What is the momentum of the baseball?
The momentum of the baseball will be "4.20 kg.m/s".
Given values are:
Mass,
m = 0.14 kgVelocity,
v = 30 m/sAs we know the formula,
→ \(Momentum=Mass*Velocity\)
or,
→ \(P=mv\)
By substituting the given values, we get
→ \(=0.14*30\)
→ \(=4.20\) \(kg.m/s\)
Thus the above answer is correct.
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Good evening! Can someone please answer this, ill give you brainliest and your earning 50 points. Would be very appreciated.
Explanation:
Broderline Green house gases are Carbon dioxide, sulphur dioxide etc.These gases absorb long wave photons of infrared light .It simply increases the temperature of our atmosphere .It becomes a reason behind increase in sea levelOption B is correct
if the radius of the circular motion for our mass is 0.33 m, how far does the mass travel during one revolution?
In one revolution the mass will travel with the distance 0.66π.
The revolution number of the tire can be calculated by using the circular motion. The revolution number is represented by n. The number of revolutions in a circular motion should follow
n = s / (2πR)
where n is total revolution, s is total distance and R is the radius of circular object.
From the question above, the given parameters are
n = 1
R = 0.33 m
By using the given equation, we can calculate the total distance traveled in one revolution
n = s / (2πR)
1 = s / (2 . π . 0.33)
s = 0.66π
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If a vehicle is moving at a constant speed of 60 miles per hour, how many miles will it travel in 1 hour and 20 minutes?.
The vehicle will travel a total of 80 miles in 1 hour and 20 minutes.
The vehicle is moving at a constant speed of 60 miles per hour.
It means that in one hour, the vehicle travels 60 miles.
So, we can write,
Miles travelled in hour = 60
Miles travelled in one minute = 60/60
Miles travelled in one minute = 1 mile
Total time given is 1 hours and 20 minutes.
1 hours = 60 minutes,
Hence, total time = 60+20
Total time = 80 minutes.
So, the distance travelled in 80 minutes = 80 x 80 miles,
Miles travelled in 80 minutes = 80 miles/
So, the vehicle travelled 80 miles in 1 hour and 20 minutes.
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a fluid exerts an upward buoyancy force on an object immersed in it. in the derivation the buoyancy force exerted on an object by the fluid was ignored but in some instances where the density of the object
Buoyancy is described as follows: "A body experiences an upward force when it is partially or entirely submerged in a fluid. The ability of fluids to pull objects submerged in them upward is known as buoyancy.
An object submerged in a fluid experiences buoyancy force, which pulls it upward. The force that a fluid exerts on an item was disregarded in the calculation of buoyancy.
The buoyancy formula can be calculated as,Fb = Vρg
V is the volume of fluid which displaced by the object , Fb buoyant force,
ρ is the density, and g is the acceleration due to the gravity.
The buoyant force causes things submerged in fluids to experience buoyancy. Therefore, the unit of buoyancy and the unit of force are the same. The SI system of units uses newtons to measure buoyancy (N).You cannot, however, ignore the buoyancy force in some circumstances where the object's density is only marginally higher than the fluid's density.
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How long (in ns) does it take light incident perpendicular to the glass to pass through this 8.9cm -thick sandwich?
A 5.2cm -thick layer of oil (n=1.46) is sandwiched between a 1.4cm -thick sheet of glass and a 2.3cm -thick sheet of polystyrene plastic (n=1.59).
It takes 133.6ns (approx) for light to pass through the given sandwich.
The time required for the light to pass through the sandwich can be calculated using the formula: T = (n1d1 + n2d2 + n3d3)/c Where, T is the time taken by the light to pass through the sandwich, d1, d2, d3 are the thicknesses of the oil, glass, and polystyrene plastic respectively, n1, n2, n3 are the refractive indices of the oil, glass, and polystyrene plastic respectively, and c is the speed of light in a vacuum.
Substituting the given values, we get:
T = (1.46 x 5.2 + 1.5 x 1.4 + 1.59 x 2.3) x 10^-2/3 x 10^8
= 0.07368 μs
= 73.68 ns.
Therefore, it takes approximately 133.6 ns (73.68 x 2) for light to pass through the given sandwich.
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When a 10-V battery is connected to a resistor, 2 A of current flow in the resistor. What is the resistor's value
Hi there!
We can use Ohm's law to solve:
\(V = IR\)
V = Potential Difference (V)
I = Current (A)
R = Resistance (Ω)
We can rearrange the equation to solve for resistance:
\(R = \frac{V}{I}\)
Plug in the given values to solve.
\(R = \frac{10}{2} = \boxed{5 \Omega}\)
A marble was sent down a ramp into a solo cup. The first time the solo cup moved 20 cm. The second time the solo cup moved 24 cm. The third time the cup moved 16 cm. What is the average movement of the cup?
Answer:
20
Explanation:
The average of the movement is 20+24+16/2 = 20cm
Answer:
.................................................................................................... .................
Explanation:
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A 2 kg marble moving at 4 mi./s collides into a 1 kg marble at rest. After collision, the 2 kg marble speed decreased to 2 mi./s. Calculate the velocity and speed of the 1 kg marble immediately after colliding.
Please show work and please help me as fast as possible because this is time
Please help as soon as possible please
Please I’m begging
Answer:
\(2\sqrt{6}\) \(\frac{mi}{s}\)
Explanation:
Assuming there is no waste of energy:
\(K_{1} = K_{2}\\\frac{1}{2}m_{1}v_{1_{1}}^{2} + \frac{1}{2}m_{2}v_{2_{1}}^2 = \frac{1}{2}m_{1}v_{1_{2}}^{2} + \frac{1}{2}m_{2}v_{2_{2}}^2\\\\=> m_{1}v_{1_{1}}^{2} + m_{2}v_{2_{1}}^2 = m_{1}v_{1_{2}}^{2} + m_{2}v_{2_{2}}^2\\\\m_{1} = 2 kg, m_{2} = 1 kg, v_{1_{1}} = 4 \frac{mi}{s} , v_{2_{1}} = 0\\=> 32 = 8 + v_{2_{2}}^{2} => v_{2_{2}} = 2\sqrt{6} \frac{mi}{s}\)
Why are the empty crucible and cover fired to red heat?
The empty crucible and cover are fired to red heat to ensure cleanliness and remove any residual impurities or moisture.
Firing the crucible and cover to red heat helps in the process of annealing, where the high temperature helps to burn off any organic matter or contaminants present on the surface.
This heating process ensures that the crucible and cover are thoroughly cleaned, minimizing the risk of introducing impurities into subsequent experiments or processes.
By reaching red heat, the crucible and cover undergo thermal decomposition of any residual substances, making them chemically inert and ready for use.
The high temperature also helps in drying out any moisture that may be trapped within the crucible or cover, preventing unwanted reactions or inaccuracies in measurements.
Overall, firing the crucible and cover to red heat is a standard practice to prepare them for use, ensuring a clean and uncontaminated environment for subsequent operations.
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A change in state is considered a
A.
Chemical change
B.
Physical Change
C.
Element
D.
Density
\(\huge{ \mathfrak{ \underline{Áñswér: }}}\)
A change in state is considered a :
\( \hookrightarrow { \mathbb{\: physical \: change}}\)
\(\#TeeNForeveR \)
what would you do to increase resistance
Answer:
If this is electrical currents , make the wire longer, smaller diameter wires, heat it up
Question 4
Which of the followmg questions explains the type of wave which can travel at the speed of light?
What is an electromagnetic wave?
What is a mechanical wave
What is a longitudinal wave?
What is a transverse wave
Answer:
What is an electromagnetic wave
Explanation:
Electromagnetic radiation is also more commonly known as light, light travels in waves- and light travels at the same speed as electromagnetic waves. :)
A man performed 500 J of work moving a couch in his living room. It took him 10 seconds to move the couch. What was his power?  A. 50 W  B. 490 W  C. 5000 W  D. 100 W
Answer:
A. 50 W
Explanation:
Power = work / time
P = 500 J / 10 s
P = 50 W
in a low-pressure chiller, air and other non condensables collect at the
In a low-pressure chiller, air and other non-condensable gases can collect in the upper portion of the chiller, typically in the condenser.
Non-condensable gases are gases that are not able to be condensed into a liquid state under normal operating conditions. These non-condensable gases can have a negative impact on the performance of the chiller. They can reduce the cooling capacity of the chiller, increase energy consumption, and cause corrosion in the system.
Therefore, it is important to regularly remove non-condensable gases from the chiller to maintain optimal performance and prevent damage to the system. This is typically done through a process called purging, which involves removing the non-condensable gases from the chiller and replacing them with the proper refrigerant.
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the electronic crime scene is handled completely differently from a traditional crime scene.
"Yes, the electronic crime scene is handled completely differently from a traditional crime scene. The electronic crime scene refers to a crime that has taken place in the digital world.
In contrast, a traditional crime scene refers to a crime that has taken place in the physical world, and it is evident that the two scenarios are handled differently.
An electronic crime scene refers to the area or place where electronic evidence is gathered for use in investigations or legal proceedings. Electronic evidence refers to information or data stored, created, or transmitted in electronic devices, including computers, smartphones, flash drives, and other digital devices. The collection of electronic evidence differs significantly from the collection of traditional evidence. The first step is the preservation of electronic evidence. In a traditional crime scene, it is possible to cordon off the area using yellow tapes, close windows, and take photographs of the scene. However, this is not the case with an electronic crime scene since electronic evidence is intangible. This is why digital forensic investigators begin the evidence preservation process by creating a forensic image of the electronic device under investigation. This is done to prevent data loss or alteration before investigations commence.
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