What is the escape speed on a spherical asteroid whose radius is 700 km and whose gravitational acceleration at the surface is 0.685 m/s2? (b) How far from the surface will a particle go if it leaves the asteroid's surface with a radial speed of 694 m/s? (c) With what speed will an object hit the asteroid if it is dropped from 1066 km above the surface? (SHOW ALL WORK)

Q.6 (same as problem 3) The phenomenon that distinguishes transverse waves from longitudinal waves is

A. Frequency

B. Amplitude

C. Polarization

D. Speed

Two very long solenoids have the same number of turns per unit length, and carry the same current, but the radius of the cross-section of solenoid #1 is twice that of solenoid #2. How do the magnetic field fluxes through the solenoids compare?

Select the best answer.

Select the best answer.

Problem 9.41

A firecracker in a coconut blows the coconut into three pieces. Two pieces of equal mass fly off south and west, perpendicular to each other, at 20 m/s . The third piece has twice the mass as the other two.

Part A

What is the speed of the third piece?

Express your answer using two significant figures.

Part B

What is the direction of the third piece? Give the direction as an angle east of north.

Express your answer using two significant figures.

A point of charge q is placed at the point (-d,0) and a second point charge of charge 2q is placed at point (2d,0). a) What is the force on the third charge of charge -q placed at point (0,d) if d=190nm and q=250nC? b) find the two positive charges placed on the x-axis? c) What is the electric field at the origin?

Two objects with masses m1 = 37 kg and m2 = 39 kg are moving toward each other with speeds V1 = 14 m/s and V2 = 18 m/s. They collide and stick together. Find their final: speed:

Kinetic energy is conserved in an elastic collision by definition. Show, using the Galilean transformation equations, that if a collision is elastic in one inertial frame it should be elastic in all inertial frames

Arrange four quarter coins touching each other as a 2-D square lattice. Calculate the area of the air-space (dead-space). (Ignore the thickness of the quarters.) Repeat the problem for a triangular lattice.

A parallel-plate capacitor has 2.18 cm2 plates that are separated by 5.69 mm with air between them. If a 18.0 V battery is connected to this capacitor, how much energy does it store?

A wooden ring whose mean diameter is 14.5 cm is wound with a closely spaced toroidal winding of 615 turns.

Compute the magnitude of the magnetic field at the center of the cross section of the windings when the current in the windings is 0.640 A .

Billiard ball A of mass mA = 0.122 kg moving with speed vA = 2.80 m/s strikes ball B, initially at rest, of mass mB = 0.145 kg . As a result of the collision, ball A is deflected off at an angle of θ′A = 30.0∘ with a speed v′A = 2.10 m/s, and ball B moves with a speed v′B at an angle of θ′B to original direction of motion of ball A.

1) Solve these equations for the angle, θ′B, of ball B after the collision. Do not assume the collision is elastic.

2)Solve these equations for the speed, v′B, of ball B after the collision. Do not assume the collision is elastic.

A batter hits a pitched ball when the center of the ball is 1.28 m above the ground.The ball leaves the bat at an angle of 45° with the ground. With that launch, the ball should have a horizontal range (returning to the launch level) of 107 m. (a) Does the ball clear a 8.22-m-high fence that is 97.0 m horizontally from the launch point? (b) At the fence, what is the distance between the fence top and the ball center?

Could a star ever move in retrograde motion? Would you ever expect a star to significantly change its position in the sky relative to other stars and constellations? Why does a planet that we can observe with the naked eye do these things while stars do not?

Consider two oppositely charged, isolated parallel plates separated by distance D, with capacitance C, charge Q, and stored energy U. D is small compared to the dimensions of the plates. For each statement below, select "True" or "False".

1. Because of energy conservation, inserting a dielectric leaves U unchanged.
2. When D is halved, Q stays the same.
3. Inserting a dielectric decreases C.
4. When D is doubled, U increases.
5. When D is doubled, C is doubled.
6. Inserting a dielectric increases Q.
7. Increasing D, leaves the E field unchanged.

A conducting sphere is placed within a conducting spherical shell as shown in the figure below. The conductors are in electrostatic equilibrium. The inner sphere has a radius of 1.50 cm, the inner radius of the spherical shell is 2.25 cm, and the outer radius of the shell is 2.75 cm. The inner sphere has a charge of 225 nC, and the spherical shell has zero net charge.