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One of your summer lunar space camp activities is to launch a 1130-kg rocket from the surface of the Moon. You are a serious space camper and you launch a serious rocket: it reaches an altitude of 225 km. What gain in gravitational potential energy does the launch accomplish? The mass and radius of the Moon are 7.36 × 1022 kg and 1740 km, respectively.
A bicycle rim has a diameter of 0.65 m and a moment of inertia, What is the mass of the rim
A rotating wheel has a constant angular acceleration. It has an angular velocity of 5.0 rad/s at time t = 0 s, What is the angular displacement of the wheel
An outfielder throws a 0.150 kg baseball at a speed of 42.0 m/s and an initial angle of 30.0°. What is the kinetic energy of the ball
a long solenoid with 60 turns of wire per centimeter carries a current of 0.11 a . the wire that makes up the solenoid
a block of mass M hangs at rest. The rope that is fastened to the wall is horizontal and has a tension off 52 N. what is the angle theta
A 0.55 kg- croquet ball is initially at rest on the grass. When the ball is struck by a mallet, the average force exerted on it is 200N. If the ball's speed after being struck is 3.5 m/s , how long was the mallet in contact with the ball?
A student pushes a 60 kg couch across a carpet at a constant velocity. find the magnitude of the force of the student on the couch
A simple pendulum consists of a ball connected to one end of a thin brass wire. Determine the change in the period of the heated pendulum
question eight 5 microc charges are located at the vertices of a unit cube centered about the origin with 1.0 mm edges.
Photorefractive keratectomy (PRK) is a laser-based surgery process that corrects near- and farsightedness by removing part of the lens of the eye to change its curvature and hence focal length. What is the energy of a single photon
Suppose that a 1.00 cm3 box in the shape of a cube is perfectly evacuated, except for a single particle of mass 1.23 10-3 g. Find the average pressure on the other walls
In a heart pacemaker, a pulse is delivered to the heart 81 times per minute. The capacitor that controls this pulsing rate discharges through a resistance of 2.0 x 106. One pulse is delivered every time the fully charged capacitor loses 62.1% of its ..
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