determine the internal normal force, shear force, and bending moment at point c, located just to the left of the 900 lb force.

Answer:

The actual source is God, who created the world's laws from His intelligence.

Answer:

150 N= 15 or 150 N= 1.1

Explanation:

What I did was subtract 165kg and 150 N and I divided it too but I got 1.1 so yuhh

Answer:

Workdone = 40 Nm

Explanation:

Force = 20 Newton

Distance = 2 meters

To find the work done;

Mathematically, work done is given by the formula;

Workdone = force * distance

Workdone = 20 * 2

Substituting into the formula, we have;

Workdone = 40 Nm

The Rigel is more warmer and brighter as compared to the sun due to its high temperature.

The Rigel is more warmer and brighter as compared to the sun due to its high temperature and its brightness is about 47,000 times more than that of the Sun. Because of its high temperature, the Rigel is white as compared to the sun.

So we can conclude that the Rigel is more warmer and brighter as compared to the sun due to its high temperature.

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The acceleration of the plane will be −8 m/s²

How to find the acceleration of a plane?

Acceleration is the rate of change in velocity over time (Δv/t).

Given, that the initial velocity of the plane u=480 m/s

The final velocity of the plane is zero after landing, v= 0 m/s

t= 1 minute= 60 seconds

we know, v=u + at

0= 480 + 60a

a=\(\frac{-480}{60}\)  = -8m/s²

Thus, the acceleration of the plane is -8 m/s²

(negative acceleration implies that the object is slowing down)

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Answer:

What I think that Jose's grandmother meant by saying that the bread was too dense is that she thinks the bread is too heavy or it can even mean to be too compacted in substance. The matter in the bread are close together and not spread out like in the air, when the matter in the air starts to come closer together it starts to make fog, because it is becoming more dense. Some more things that are heavy or dense are things like a big stereo speaker, an anvil, or even a big piece of wood used to build.

Explanation:

Answer:

0.37 kg

Explanation:

I'm not a professor myself, but this is how I worked it out:

using the graph, after 100 seconds, the temperature is 100 degrees Celsius.

If we now substitute everything into the specific heat capacity equation, making the mass "m", we would come up with:

4200 = 155000/(m x 100)

If we rearrange and solve for m, we get 0.37 kg.

I'm not sure if I have done this correctly, feel free to correct me.

Hope this helps!

By using the specific heat capacity formula, the  mass of water in the kettle is 0.47 kg

Give that the energy transferred to the water in 100 seconds was 155 000 J and the specific heat capacity of water = 4200 J/kg °C

From the graph;

The initial temperature of the water at time zero is 22 degree Celsius

The final temperature of the water at time 100s is 100 degree Celsius

Change in temperature (T) = 100 - 22 = 78 degree Celsius

To determine the mass of water in the kettle, use the heat energy formula below

E = mcT

Substitute all the parameters into the equation

155000 = 4200 x 78 M

Make M the subject of the formula

M = 155000/327600

M = 0.47 kg

Therefore, the  mass of water in the kettle is 0.47 kg

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Answer:

I think ur answer would be B

Explanation:

srry if wrong

hope this helps

Answer:

it is actually very easy & interesting. first write formula of force F=Mass×Acceleration . now see what are the unknowns , mass is known but acceleration is not . so find acceleration, a=velocity/time , but now again we dont know velocity, V= distance/time . subbing in all the values, Force=Mass×(distance/time^2)

Hope it helps if you have any problem feel free to ask.

From the velocity and time relationship the distance is found.Distance is found as the product of the velocity and time.

Distance is a numerical representation of the distance between two objects or locations.

Distance can refer to a physical length or an estimate based on other factors in physics or common use. |AB| is a symbol for the distance between two points A and B.

The formula for the distance is;

Distance= speed ×Time

We have mass, time and force​.With the help of the given mass and force we can find the acceleration as;

Force = mass ×acceleration

Furthur the velocity is found by the acceleration and time.

Hence by the velocity and time relationship the distance is found.

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The tension of the mass 1g and 40 cm long that plays the same note as a closed pipe of the same length is approximately 43.9 N.

To find the tension of a mass 1g and 40 cm long that plays the same note as a closed pipe of the same length, you'll need to compare the fundamental frequencies of both systems.

Step 1: Calculate the fundamental frequency of the closed pipe
The formula for the fundamental frequency (f) of a closed pipe is:

f = (2n - 1)v / 4L

where n is the harmonic number (for the fundamental frequency, n = 1), v is the speed of sound in air (approximately 343 m/s), and L is the length of the closed pipe (0.4 m).

f = (2(1) - 1)(343) / (4)(0.4)
f ≈ 214.375 Hz

Step 2: Calculate the tension of the string with the same fundamental frequency
The formula for the fundamental frequency of a string is:

f = (1 / 2L) × √(T / μ)

where L is the length of the string (0.4 m), T is the tension, and μ is the linear mass density of the string. Since the mass of the string is 1g (0.001 kg) and its length is 40 cm (0.4 m), μ can be calculated as:

μ = mass / length
μ = 0.001 kg / 0.4 m
μ ≈ 0.0025 kg/m

Now, we can solve for T using the fundamental frequency found in Step 1:

214.375 Hz = (1 / 0.8 m) × √(T / 0.0025 kg/m)

Rearranging the equation and squaring both sides:

T = 0.0025 kg/m × (0.8 m × 214.375 Hz)²
T ≈ 43.9 N

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The magnitude and direction of each force acting on a body in a specific situation are represented in free-body diagrams.

Let the masses of the three blocks be, m₁, m₂ and m₃.

The masses m₂ and m₃ are connected through a pulley, which has a force of tension, T.

So, from the diagram we can say that,

T = m₃a

Also,

m₂g - T = m₂a

By solving the two equations, we get that,

m₂g = m₂a + m₃a

Therefore, the acceleration of the third block m₃ is,

a = m₂g/(m₂ + m₃)

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Attaching the image file here.

Answer:

Draw line perpendicular to mirror

Angle of incidence = angle between incident ray and perpendicular

Angle of reflection = angle between reflected ray and perpendicular

32 + 32 = 64

Angle of incidence = angle of reflection = 32 deg

a. The acceleration due to gravity on Pluto is approximately 0.620\(m/s^2.\)

b. A 5.68-kg person would weigh approximately 3.5296 N on Pluto.

(a) To calculate the acceleration due to gravity on Pluto, we can use the formula:

acceleration due to gravity (g) = G * (mass of Pluto) / \((radius of Pluto)^2\),

where G is the gravitational constant.

The gravitational constant is approximately 6.67430 ×\(10^{-11} m^3/(kg*s^2).\)

Substituting the given values:

g =\((6.67430 * 10^{-11 }m^3/(kg*s^2)) * (1.30 * 10^{22} kg) / (1.18 * 10^6 m)^2.\)

Calculating this expression:

g ≈ \(0.620 m/s^2.\)

(b) To calculate the weight of a person on Pluto, we can use the formula:

weight = mass * acceleration due to gravity.

Substituting the given values:

weight = 5.68 kg * 0.620 m/s^2.

Calculating this expression:

weight ≈ 3.5296 N.

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Answer:

Look below

Explanation:

Units are very important. Let's say we were building an apartment. We used meters for every measurement except for 1 support where we used centimeters. This could lead to the collapse of the whole structure as the measurements were wrong. 100 meters and 100 centimeters are very different.

The unit of measurement is very important. A measurement tells us about the property of something. It tells us how heavy an object is, or how long an object is. A measurement gives us a number to that property.

A unit is any standard used for making comparisons in measurements. Unit conversions allow for measurements of a property that have been recorded using different units—for instance, centimetres to inches.

Units are important when measuring quantities because units allow people to communicate amounts uniformly in a way that can be understood by others.

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Answer: It was important when the Sun was forming from a shrinking interstellar cloud of gas.

Hope this helps!!

This process is thought to have been the main source of energy for the sun in the early stages of its development before nuclear fusion reactions in the sun's core became the dominant source of energy.

Gravitational contraction is the process by which a celestial body, such as a star, generates energy through the release of gravitational potential energy as it contracts and becomes denser.

Here,
This process is thought to have been the main source of energy for the sun in the early stages of its development before nuclear fusion reactions in the sun's core became the dominant source of energy.

As the sun contracted and became denser, the temperature and pressure in its core increased, leading to the initiation of nuclear fusion reactions. These reactions transformed hydrogen into helium and released a tremendous amount of energy in the form of light and heat, which has sustained the sun for billions of years.

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AP Physics 1 is a college-level introductory physics course designed to give high school students an understanding of the fundamental principles of physics.

The course covers topics such as mechanics, waves, thermodynamics, electricity, and magnetism. Students in AP Physics 1 learn to think critically and solve problems using scientific inquiry, experimentation, and analysis. The course is structured to provide students with hands-on laboratory experience and to develop their skills in using math and quantitative analysis to explain physical phenomena. At the end of the course, students take an exam that can qualify them for college credit and demonstrate their mastery of the concepts and skills covered in the course.

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The term you are looking for is "chemical battery". Chemical batteries work by converting chemical energy into electrical energy through a series of chemical reactions. These reactions take place within the battery's cells, which are composed of two electrodes and an electrolyte.

When the battery is connected to a circuit, the chemical reactions produce an electrical current that can be used to power devices. Chemical batteries are widely used in many applications, including consumer electronics, electric vehicles, and renewable energy systems. They are a crucial component of our modern technological society, and ongoing research is focused on developing more efficient and sustainable battery technologies to meet growing energy demands.

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The tension in the cable is 1450 N. The appropriate units for tension are newtons (N).

we need to use the principle of torque equilibrium. The torque due to the weight of the steel beam must be balanced by the torque due to the tension in the cable.

The torque due to the weight of the steel beam can be calculated as follows:
torque = weight x distance from the pivot point
torque = 1450 kg x 2.5 m
torque = 3625 N*m

The torque due to the tension in the cable can be calculated as follows:
torque = tension x distance from the pivot point
torque = tension x 2.5 m
Since the system is in equilibrium, these two torques must be equal:
3625 N*m = tension x 2.5 m

Solving for tension, we get:
tension = 3625 N*m / 2.5 m
tension = 1450 N

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Answer:

(i) It will take longer (75/22 times) the time to boil a given quantity of water compared to when the current is working at its rated capacity

(ii) The reasons are;

(1) For economy; most of the appliances in the home only require low power circuitry with thinner wire while a separate high power circuitry is created directly from the main supply for the high electric power rated appliances

(2) For safety; to prevent the over heating of the electric circuits when an high electric power appliance needs to be connected an high power electric power outlet has to be specified

Explanation:

(i) The power rating of the kettle = 3 kW

The voltage rating of the circuit, V = 220 V

The current rating, I = 4 A

The formula for electric power = I² × R = I × V

Therefore, we have;

Power produced = 220 V × 4 A = 880 V·A = 800 W

Hence, since the power produced is below the power rating of the electric kettle, it will take a longer time to boil a given amount of water than specified by the kettle manufacturer

The energy supplied H = V×I×t

Where:

t = Time in seconds

Therefore, we have;

3 kW = 3000 W;

3000 × t₁ = 880 × t₂

t₂/t₁ =3000/880 = 75/22

Hence the kettle will take 75/22 multiplied by the time it takes when working at rating capacity to boil a given quantity of water

(ii) This is so because the power consumption already factored in the electrical installation as well as the type of appliances utilized in the home allow for several low power rating consumption and few high power rating consumption

Therefore, for both economy and safety the electrical circuit are split to allow for the use of very thick copper or aluminium electric cables in the high power rating electric circuits to which can be plugged high electric power consuming devices such as the water heater and electric cooker

The low electric power consuming devices, such as the electric bulb and fans are connected to the low or "regular" power rating electric circuit outlets

The current required for high power and low power appliances is different and also the fuse rating required for both the appliances different, so two separate circuits are used for high power and low power appliances.

Answer:

Angular Momentum = M * V * R

Angular momentum is constant if there is no force applied along the direction of motion, A is correct here

To determine the minimum required diameter of each rod, we need to consider the average normal stress limit of 150 MPa. The formula to calculate the average normal stress is σ = F/A, where σ is the stress, F is the force applied, and A is the cross-sectional area of the rod.

Assuming the force applied is the maximum force that the rod will experience, we can rearrange the formula to solve for the cross-sectional area: A = F/σ. Since we're looking for the minimum required diameter, we'll use the formula for the cross-sectional area of a circle: A = πd²/4, where d is the diameter.
Combining the two formulas, we have πd²/4 = F/σ.
Simplifying further, d² = (4F)/(πσ).

To determine the minimum diameter, we'll use the maximum force applied and the given stress limit: d² = (4 * max force)/(π * 150 MPa).
We don't have the value of the maximum force, so we can't determine the exact minimum diameter. However, you can calculate it by plugging in the appropriate values into the formula above. Remember to round the result to the nearest millimeter. To determine the minimum required diameter of each rod, you need to know the maximum force applied and the stress limit. Use the formula d² = (4 * max force)/(π * 150 MPa) and round the result to the nearest millimeter.

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It will take about 12.12 minutes for the thermocouple to read 95% of the initial temperature difference of the sphere. This is due to difference in temperature.

What is the time required to read 95% of initial temperature difference?

In order to determine how long it will take for the thermocouple to read 95% of the initial temperature difference, the following formula is used:

t = (rho × V × Cp)/(h × pi × D) × ln ((Tinitial - T∞) / (Tinitial - Tcutoff))

where, t = time (s), ρ = density (kg/m³), V = volume (m³), Cp = specific heat capacity (J/kg °C), h = heat transfer coefficient (W/m²°C), D = diameter (m), Tinitial = initial temperature (°C), T∞ = surrounding temperature (°C), Tcutoff = temperature at which the thermocouple reading is 95% of the initial temperature difference (°C).

Substituting the given values into the above formula:

t = (8500 kg/m³ × (4/3 × pi × (0.0006 m)³)) / (65 W/m2 °C × pi × 0.0012 m) × ln ((100 °C - 25 °C) / (100 °C - 95 °C))

t = 727.31 s or 12.12 minutes.

Therefore, it will take approximately 12.12 minutes for the thermocouple to read 95% of the initial temperature difference.

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Answer:

10.37×10³j

Explanation:

hope this helps you !!!

the power of lens to see an object clearly that is 30.0 cm away is +1.67D.

This problem is known as hypermetropia the condition of the eyes where the image of a nearby object is formed behind the retina. Here, the light is focused behind the retina instead of focusing on the retina.

To treat hypermetropic eye, convex lens is used to focus the object in 30cm to the point 0.6m or 60cm.

which is near point in this case.

we have lens equation :- \((\frac{1}{v} ) - (\frac{1}{u} ) = \frac{1}{f}\)

where, v = lens to image distance = -60cm

           u = lens to object distance = -30cm

(cartesian sign convention is used for u and v )

by substituting value for u and v in lens equation we get ,

                                 \(\frac{1}{f} =-\frac{1}{60} +\frac{1}{30}\)

                                 \(\frac{1}{f} = 60cm\)

lens to be used is convex lens of focal length 60cm .

power of lens = \(\frac{1}{f}\)    ( put f in meter)

                         = \(\frac{1}{0.6}\)

                        =  + 1.67D

Thus from the above conclusion we can say that lens to be used is convex lens with power of  + 1.67D.

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When you shake your hand the same distance but faster, the amplitude remains the same, frequency increases, wavelength decreases, and the wave speed may or may not change depending on the properties of the rope.


- Amplitude: Since you are shaking your hand the same distance, the amplitude, which is the maximum displacement of a point on the wave from its equilibrium position, remains unchanged.
- Frequency: When you shake your hand faster, you create more oscillations in a given time period, which leads to an increased frequency (number of oscillations per unit time).
- Wavelength: As frequency increases, the wavelength (distance between two consecutive crests or troughs) decreases, according to the wave equation: speed = frequency × wavelength.
- Wave Speed: The speed of a wave on a rope is determined by the tension and mass per unit length of the rope. If these factors remain constant, the wave speed will not change. However, in a real-world scenario, these factors may be affected by the increased frequency, leading to a change in wave speed.


When shaking a rope faster but with the same distance, the amplitude remains constant, frequency increases, wavelength decreases, and the wave speed may or may not change depending on the rope's properties.

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The principles of stoichiometry are based upon the law of conservation of mass.

Answer:

118 to glass

Explanation:

Answer:

1.5

Explanation:

sin i / sin r = n

i = 135 - 90 = 45

r = 118 - 90 = 28

sin (45) / sin (28) = n

n= 1.5

Among the options given, "Forestry" is not considered one of the three most anthropogenic sources of greenhouse gas emissions. The correct answer is C. Forestry.

Greenhouse gas emissions refer to the release of gases into the atmosphere that contribute to the greenhouse effect and global warming. While all of the options mentioned - Industry, Transportation, and Energy - are major anthropogenic sources of greenhouse gas emissions, "Forestry" is not typically included among them.

The three primary sources of greenhouse gas emissions are generally recognized as Industry, Transportation, and Energy.

1. Industry: Industrial activities, such as manufacturing, construction, and chemical production, can release significant amounts of greenhouse gases into the atmosphere. These emissions are often associated with the burning of fossil fuels for energy, as well as industrial processes that produce emissions as byproducts.

2. Transportation: The transportation sector, including cars, trucks, airplanes, ships, and trains, is a significant contributor to greenhouse gas emissions. The combustion of fossil fuels in vehicles releases carbon dioxide (CO2) and other greenhouse gases into the atmosphere.

3. Energy: The energy sector, particularly the burning of fossil fuels for electricity generation, is a major source of greenhouse gas emissions. Power plants that rely on coal, oil, and natural gas release CO2 and other greenhouse gases when these fuels are burned.

While forestry can have an impact on the carbon cycle and the sequestration of carbon dioxide through deforestation and forest degradation, it is not typically included among the three most anthropogenic sources of greenhouse gas emissions.

However, it is important to note that land-use changes associated with deforestation can contribute to greenhouse gas emissions indirectly.

In conclusion, among the options provided, "Forestry" is not considered one of the three most anthropogenic sources of greenhouse gas emissions. The primary sources are Industry, Transportation, and Energy.

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