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Question1
A neutron star has a mass of 2.0 1030 kg (about mass of our sun) and a radius of 5.4 103 m (about the height of a good-sized mountain). Assume an object falls from rest near the surface of such a star. How fast would it be moving behind it had fallen a distance of 0.016 m? (Suppose that the gravitational force is constant over the distance of the fall, and that the star is not rotating.)
Question2
The pendulum of a grandfather clock consists of a thin rod of length L (and negligible mass) attached at its upper end to a fixed point, and attached at its lower end to a point on edge of a uniform disk of radius R, mass M, and negligible thickness. The disk is free to rotate about the point of attachment. Suppose all motion is constrained to a single vertical plane near Earth's surface. Neglect friction and air resistance, as well as the rotation of earth.
What is Lagrangian for this system?
Amber (n = 1.546) is a transparent brown-yellow fossil resin. An insect, trapped and preserved within the amber, How far below the surface is the insect actually located
If the hypotenuse of a right triangle is 6.00cm long, and the opposite is 4.00. What is the angle facing the opposite
While a roofer is working on a roof that slants at 44.0 above the horizontal, he accidentally nudges his 93.0 toolbox, causing it to start sliding downward, starting from rest.
A projectile is fired into the air from the top of a cliff of height h = 198 m above a valley. Where does the projectile land
A 100.0 kg box is pushed by a horizontal force F at constant speed up a frictionless ramp which makes an angle of 36.0 deg with the horizontal. Find the magnitude of the applied force
A satellite in Earth orbit has a mass of 91 kg and is at an altitude of 1.97 x 10^6 m. What is the potential energy of the satellite%u2013Earth system
Unpolarized passes through two polarizers that are oriented 65 degrees to each other. What is the orientation of the polarizers
A 0.700-kg ball is on the end of a rope that is 2.50 m in length. The ball and rope are attached to a pole and the entire apparatus, including the pole, What is the tangential speed of the ball
Find out the rotational inertia of this object (a) about an axis through the center of the triangle and perpendicular to its plane (b) and about an axis that passes through one vertex and the midpoint of the opposite side.
You are studying standing sound waves in an organ pipe of length L with both ends open, What is the frequency of the musical tone produced by the organ pipe in the situation described in part b
A block with a mass of 8 kg is at rest on a horizontal surface. The coefficiant of static friction between the block, What is the magnitude of the frictional force on the block
Consider the ballistics pendulum experiment. If M=1kg and m=0.1kg, and the velocity of the bob-ball system right after the collision is Vf=2m/s, what was the initial velocity of the ball before it hit the bob
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