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A fly sits 9.2 cm from the center of a turntable. Through how many revolutions must the turntable rotate per minute in order for the fly to have an acceleration of 9.8 m/s2 toward the center.
A skier is gliding along at 5.0 on horizontal, frictionless snow. He suddenly starts down a 10incline. His speed at the bottom is 15. how long does it take him to reach the bottom
q1. the red giant betelgeuse has the surface temperature of 4000 rm k and is 500 times the diameter of our sun. if our
In our electrostatics lab, we charge a metal sphere to 1000 V. What is the electric potential due to the charged sphere at a point 1.00 cm from its surface
A 2.05 g ping-pong ball rubbed against a wool jacket acquires a net positive charge of 1.26 ?C. How many electrons were removed from the ping-pong ball
a ferris wheel has a radius of 11.0 m and rotates once every 11 s, what is the force of the chair seat on you
A cart 4.9 m in length moving with a velocity of 4.9 m/sec is approaching a platform which is 9.8 m above the plane of the cart's motion. how many meters before the front of the cart arrives
It is proposed that future space stations create an artificial gravity by rotating. Suppose a space station is constructed as a 1600-m-diameter cylinder, What rotation period will provide "normal" gravity
question1a step-up transformer has 270 turns on its primary coil and 90000 turns on its secondary coil. the emf of the
A silver wire has a cross sectional area A = 2.0 mm2. A total of 9.4 × 1018 electrons pass through the wire in 3.0 s. What is the drift velocity of these electrons
Just before the collision and in kilometers per hour, what was the speed of the rocket piece relative to the satellite if both were in circular orbits and the collision was (a) head-on and (b) along perpendicular paths.
A bullet moving at 244 m/s strikes a tree and penetrates a distance of 8.34 mm before stopping. What was the average acceleration of the bullet as it slowed
A train is travelling up a 4.0 incline at the speed of 3.25 when the last car breaks free and begins to coast without friction. How long does it take for the last car to come to rest momentarily.
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