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A projectile is launched vertically with an initial speed of 3 kilometer per second from the surface of a planet (radius = 1.5 x 106 meter). The projectile rises to a maximum height of 3.0 x 106 meter above the surface of the planet. Evaluate what is the mass of the planet?
You push two boxes from to the right .at the left side you have Vo=0m/s and the right side you have a final velocity of vf= 5m/s. If it takes you 20 seconds to push the boxes, what is the acceleration? How far do the boxes moves along the boxes the g..
A frictionless ramp is constructed so that it is at a 30 degree angle to the horizontal. It is 1.8 meters long and 0.9 meters high. How far along the rough patch do the blocks go before stopping
Two ice skaters, with masses of 50.0kg and 65.0kg , are at the center of a 40.0m -diameter circular rink. how long does the lighter skater take to reach the edge
Two narrow slits are spaced .25 mm apart and are 60 cm from ascreen. what is the distance between the second and thirdbright lines of the interference pattern if the source is 546 nm ofmercury?
Preparing to throw baton A in the air, you hold it at the midpoint and give it a twist with your forearm and wrist that applies a torque of 1.4 m·N for a time interval of 0.50 s. What would be the moment of inertia
A block of mass m = 3 kg is attached to a spring (k = 27 N/m) by a rope that hangs over a pulley of mass M = 7 kg and radius R = 9 cm, Find the maximum extension of the spring
A 2.0 wood block is launched up a wooden ramp that is inclined at a 31 angle. The block's initial speed is 5.0 . The coefficient of kinetic friction of wood on wood is muk= 0 .2 part A What vertical height does the block reach above its starting poin..
A child is twirling a 0.0148-kg ball on a string in ahorizontal circle whose radius is 0.143 m. The ball travels oncearound the circle in 0.402 s.
what must the charge sign and magnitude of a particle of mass 1.50nc be for it to remain stationary when placed in a
A transformer has an input coil with Nin = 200 turns and Nout = 800 turns. what is the voltage across the output circuit
A farsighted person has a near point of 60.0 cm for the left ye and a near point of 90.0 cm for the right eye. What power should contact lenses have to allow the person
a virtual image is located 53.5cm behind a concave mirror with focal length 20.0cm .a. where is the distance from the
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