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A space ship is moving toward the earth at a speed of 0.75 c when it launches two space probes at precisely the same time. Probe A is launched toward the earth at a speed of 0.8cas measured on the space ship. Probe B is launched away from the earth at a speed of 0.6 c as measured on the spaceship. Compute the speeds of the two probes as measured on earth.
The generator at a power plant produces AC at 48,000V. A transformer step this up to 345,000 V for transmission over power lines. If there are 1000 turns of wire in the input coil of the transformer, how many turns must there be in the output coil?
Joe, standing stationary on a beach, sees a small boat of mass M = 195 kg go by at constant speed V = 13.1 m/s. Tom, a man of mass m = 88.5 kg, Find the speed of the boat v, relative to Joe
a bowling ball mass7.2kg radius0.11m and a billiard ball mass0.38kg radius0.028m may each be treated as uniform
Consider a rectangular loop of wire 6.8cm by 7.8cm in a uniform magnetic field of magnitude 1.4T. What is the average induced emf in the loop
What is the neA puck (mass m1 = 4.15 kg) slides on a frictionless table, What is the new speed of the puck, What is the change in the kinetic energy of the puck
On windy days it sways with a frequency of 0.21 , and the acceleration of the top of the building can reach 2.4 of the free-fall acceleration, enough to cause discomfort for occupants.
a spaceship enters the solar system moving toward the sun at a constant speed relative to the sun. by its own clock the
A 5.5- kg concrete block rests on a level table. A 3.7- kg mass is attached to the block by a string passing over a light, what is the coefficient of friction between the block and the table
A speedboat starts from rest and accelerates at +2.01 m/s2 for 7.40 s. What is the velocity of the boat at t = 21.8 s
on the apollo 14 mission to the moon astronaut alan shepard hit a golf ball with a golf club improvised from a tool.
A wooden block slides directly down an inclined plane, at a constant velocity of 6.0 m/s. How large is the coefficient of kinetic friction, if the plane makes an angle of 25 degrees with the horizontal?
A block of mass 2.0kg rests on top of another block of mass 5.0kg. What is the maximum amplitude of oscillations possible such that the block stay together
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