What do observers on earth measure for speed of laser beam
You are traveling in a spaceship at a speed of 0.59c away from Earth. You send a laser beam toward Earth traveling at velocity c relative to you. What do observers on the Earth measure for the speed of the laser beam?
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You send a laser beam toward Earth traveling at velocity c relative to you. What do observers on the Earth measure for the speed of the laser beam?
A 4.20 kg steel ball strikes a wall with a speed of 7.0 m/s at an angle of 60.0° with the surface. It bounces off with the same speed and angle. If the ball is in contact with the wall for 0.200 s, what is the average force exerted by the wall
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if the theremometar is then immersed in a sample of water of a mass 119 celsius and the combination reaches the final tempeture of 41.5 celsius, what was the initial tempeture of the water?
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A condition caused by an accident, trauma, genetics, or disease, which may limit a person's mobility, hearing, vision, speech, or mental function
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