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A 2.00 kilogram stone is tied to a 0.500-m length of string and swung around a circle at a constant angular velocity of 12.0 rad/s. What is the net torque on the stone regarding the center of the circle?
Ball 1, with a mass of 120g and traveling at 15m/s , collides head on with ball 2, which has a mass of 330g and is initially at rest. What are the final velocities of each ball if the collision is perfectly inelastic? (Vfx)1? (Vfx)2
A 85.1 kg astronaut is working on the engines of a spaceship that is drifting through space with a constant velocity. How long does it take the astronaut to reach the ship
Starting from rest, a basketball rolls from the top of a hillto the bottom, reacing a translational speed of 3.54 m/s. Released from the rest at the same height, a can of frozenjuice rolls to the bottom of the same hill. What is the translational sp..
a wooden speaker with a mass of 12.57 kg is attached to a light spring with a spring constant of 145 nm. the system is
A bat flying in a cave emits the sound pulse and receives its echo in 3.5 s. How far away is the cave wall.
A bowling ball of mass 7.2 kg and a radius of 9.9 cm rolls without slipping down a lane at 2.8m/s. Calculate its total kinetic energy
What is the maximum speed of the disk without the block and penny sliding? The accelertion of gravity is 9.8m/s2 (meters persecond squared). Answer in units of rpm.
A 160.-kilogram astronaut (including lifesupport) lands on the asteroid Eros where the gravitational acceleration (g) is 5.45millimeters/s2. What is the astronaut's weight on Eros? What is the name of the unit used for weight?
Imagine that the cannon from Problem #1 is actually firing into a strong wind, What is the final velocity vector of the ball when it lands
If a curve with a radius of 87 is perfectly banked for a car traveling 67 , illustrate what must be the coefficient of static friction for a car not to skid when traveling at 84 ?
A curve of radius 30.0 m is banked so that a car traveling 40.0km/h can round it even if the road is so icy that the coefficient of static friction is approximately zero. Find the speed at which a car can travel around this curve withoutskidding o..
One trajectory that can be used to send spacecraft from Earth to Mars is an elliptical orbit that has Sun at one focus, its perihelion at Earth, Find the semimajor axis of the ellipse
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