In a synchrotron, charged particles are accelerated as they travel around in circles; in a linear accelerator they move in a straight line. What are some of the advantages and disadvantages of each?

Discuss how levitation can be achieved by using super conductors.

A water faucet in a house is h=8 m below the water surface in the local water tower. The radius of the orifice in the fully opened faucet is r=0.01 m. We assume non-viscous flow in this problem.

a) How long does it take to fill a 20 liter bucket with water using this faucet?

What is the energy released in this nuclear reaction  63Li+10n?31H+42He36Li+01n?13H+24He? (The atomic mass of 6Li6Li is 6.015121 u, and that of  3H3H is 3.01605 u)

___MeV

Let’s say you wanted to have a communications satellite orbit the Moon so

that it stayed exactly above one point of the Moon’s equator (similar to a

geosynchronous here on Earth). What would the linear speed and lunar

altitude of your communications satellite be?

A negative charge, -q, has a mass, m, and an initial velocity, v, but is infinitely far away from a fixed large positive charge of +Q and radius R such that if the negative charge continued at constant velocity it would miss the center of the fixec charge by a perpendicular amount b. But because of the Coulomb attraction between the two charges the incoming negative charge is deviated from its straight line course and attracted to the fixed charge and approaches it. Find the closest distance the negative charge gets to the positive one.

Try to use work-energy theorem with U=(kq)/r and KE=(mv^2)/2

Assuming ideal frictionless conditions for the apparatus shown in the figure, what is the acceleration of the system if (a) m1=.25 kg, m2=.50kg, and m3=.25kg, and (b) m1=.35kg, m2=.15kg and m3=.50 kg? Please show all work.

An astronaut shipwrecked on a distant planet is on top of a sheer vertical cliff (let’s call it point P), which he wishes somehow to climb down. He does not know the acceleration due to gravity on the planet, and he has only a good watch with which to make measurements. He wants to learn the height of the cliff (from P down to the bottom). To do this,he makes two measurements. 1) He drops a rock fall from rest off the cliff edge (from point P) and finds that the rock takes 4.15 s to reach the bottom. 2) He tosses another rock straight upward from P such that it rises a height of what he estimates to be 2 m (up from P) before it falls to the ground below. This time the rock takes 6.30 s from the original toss to hit the bottom. What is the height of the cliff (point P down to the bottom below)?

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

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.

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?

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 !

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

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?