Questions
Determine the equations for planetary motion using Hamilton’s equations.

Determine the equations for planetary motion using Hamilton’s equations.

In: Physics

When you look through a fish tank at someone on the other side, you only see...

When you look through a fish tank at someone on the other side, you only see a reflection of the fish in the tank. However, the other person can see you clearly. Explain.

In: Physics

Anyone answer the 3 questions? Experiment: Tie one end of the fishing line to a chair....

Anyone answer the 3 questions?

Experiment:

Tie one end of the fishing line to a chair.

String the other end of the fishing line through the straw and tie the line to a 2nd chair spaced ft. away.

Inflate the balloon. Hold it closed with your fingers, and tape it to the straw.

Slide the straw/balloon back so that the mouth of the balloon is facing the nearest chair.

Let go of the balloon and observe what happens.

Questions:

1. Explain what caused the balloon to move in terms of Newton's 3rd Law.

2. What is the force pair in this experiment? Draw a free body diagram (FBD) to represent the unbalanced) forces on the balloon/straw combination.

3. Add some mass to the straw by taping some metal washers to the bottom and repeat the experiment. How does this change the motion of the assembly? How does this change the FBD?

In: Physics

A charge of -3.00 nC is placed at the origin of an x-y coordinate system, and...

A charge of -3.00 nC is placed at the origin of an x-y coordinate system, and a charge of 2.00 nC is placed on the y-axis at y = 4.00 cmb.

If a third charge of 5.00 nC is now placed at the point x = 3.00 cm, y = 4.00 cm, what are the x and y components of the total force exerted on the charge by the other two charges?c.e.

What are the magnitude and direction of the total force?

I would appreciate an explanation of the magnitude and force part , thank you so much !

In: Physics

A speedboat traveling at a constant velocity of 20m/s passes a police boat at rest. The...

A speedboat traveling at a constant velocity of 20m/s passes a police boat at rest. The police boat starts up 8 seconds after the speedboat passes, and accelerates at 2.3m/s^2. When and where does the cop catch the speedboat?

In: Physics

Explain how Biot-Savart’s law enables one to express the Ampere’s circuital law in the integral form?

Explain how Biot-Savart’s law enables one to express the Ampere’s circuital law in the integral form?

In: Physics

two moles of a monatomic ideal gas are compressed in a cylinder at a constant temperature...

two moles of a monatomic ideal gas are compressed in a cylinder at a constant temperature of 85 c until the original pressure has tripled?

a)what is the work done on the gas?

b)How much heat is transfered out of the gas?

A monatomic ideal gas in a cylinder is held at a constant temperature 230kpa and is cooled and compressed from 1.7 to 1.2

a) what is the internal energy of the gas?

b)How much heat is transferred out of the gas?

In: Physics

The hydrogen atom electron is in the ground state. The electron absorbs energy and makes a...

The hydrogen atom electron is in the ground state. The electron absorbs energy and makes a transition to the n=3 state. Then it returns to the ground state by emitting two photons when going to n=2 and then n=1 states.
A. What are the wavelengths of these photons?
B. What will be the wavelength if only one photon is emitted?
C. What is the maximum number of electrons with ml=3 in the shell with n=5?
D. How many electrons with same quantum numbers n=3, l=1, ml=-1, and ms= -1/2 are allowed in the same atom?

In: Physics

A ladder of length L = 2.8 m and mass m = 16 kg rests on...

A ladder of length L = 2.8 m and mass m = 16 kg rests on a floor with coefficient of static friction ?s = 0.51. Assume the wall is frictionless.

1)

What is the normal force the floor exerts on the ladder?
2) What is the minimum angle the ladder must make with the floor to not slip?
3) A person with mass M = 69 kg now stands at the very top of the ladder. What is the normal force the floor exerts on the ladder?

4) What is the minimum angle to keep the ladder from sliding?

In: Physics

When two lenses are used in combination, the first one forms an image that then serves...

When two lenses are used in combination, the first one forms an image that then serves as the object for the second lens. The magnification of the combination is the ratio of the height of the final image to the height of the object. A 1.80 cm -tall object is 51.0 cm to the left of a converging lens of focal length 40.0 cm . A second converging lens, this one having a focal length of 60.0 cm , is located 300 cm to the right of the first lens along the same optic axis.

Part A

Find the location and height of the image (call it I1) formed by the lens with a focal length of 40.0 cm .

Enter your answer as two numbers separated with a comma.

Part B

I1 is now the object for the second lens. Find the location and height of the image produced by the second lens. This is the final image produced by the combination of lenses.

Enter your answer as two numbers separated with a comma.

In: Physics

A single-coil loop of radius r = 7.40 mm, shown below, is formed in the middle...

A single-coil loop of radius r = 7.40 mm, shown below, is formed in the middle of an infinitely long, thin, insulated straight wire carrying the current i = 32.5 mA.  

What is the magnitude of the magnetic field at the center of the loop?

In: Physics

A cylinder contains 0.250 mol of carbon dioxide (CO2)gas at a temperature of 27.0?C. The cylinder...

A cylinder contains 0.250 mol of carbon dioxide (CO2)gas at a temperature of 27.0?C. The cylinder is provided with a frictionless piston, which maintains a constant pressure of 1.00 atm on the gas. The gas is heated until its temperature increases to 127.0?C. Assume that the CO2 may be treated as an ideal gas.

a.) How much work W is done by the gas in this process?

b.) What is the change in internal energy ?U of the gas?

c.) How much heat Q was supplied to the gas?

In: Physics

Compare the measured values of tension to the calculated values of tension. What are the possible...

Compare the measured values of tension to the calculated values of tension. What are the possible physical experiment uncertainties for the differences between the measured and calculated?


Measured= .075N

Caculated= .079N

Velocity v = .433m/s

Mass of Cylinder m = .1118kg

Radius of Pendulum r = .265


T=mv2/r

In: Physics

24. A 0.0500-kg ice cube at −30.0ºC is placed in 0.400 kg of 35.0ºC water in...

24. A 0.0500-kg ice cube at −30.0ºC is placed in 0.400 kg
of 35.0ºC water in a very well-insulated container. What is
the final temperature?

In: Physics

An Electron initially in the n=2 state of a hydrogen atom is excited by a photon...

An Electron initially in the n=2 state of a hydrogen atom is excited by a photon to the n=5 state.

a. What is the energy of the excitatoin photon?

b. As the atom relaxes, the electron transitions to the ground state. What is the energy of the photon released during the electron transition?

c. What is the frequency of the released photon?

d. What is the name of the scientist who first modeled the atom as a miniature solar system?

In: Physics