Special relativity predicts that moving clocks run slow
Indicate whether the statement is true or false
T
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Why don't most of the particles that make meteors actually reach the surface of Earth?
A) They are too small and burn up in the atmosphere. B) They reflect off the atmosphere and return to space. C) They are too small and are slowed to a stop in the atmosphere. D) They are deflected by the solar wind. E) They are deflected by the gravity of the Moon.
A sunken treasure sits on the ocean floor at a depth of 240 fathoms. What is this depth, in feet? (1 fathom = 6 ft)
A) 30. B) 40. C) 77. D) 1.44 × 103 E) 240.
8 g bullet fired into 2.5 kg ballistic pendulum and becomes embedded into it. Pendulum rided a vertical distance of .06 m calculate the initial speed of the bullet
A uniform rod is 2.0 m long. The rod is pivoted about a horizontal, frictionless pin through one end. The rod is released from rest at the horizontal position. What is the angular acceleration of the rod at the instant the rod makes an angle of 70° with the horizontal?
a. 3.7 rad/s2 b. 1.3 rad/s2 c. 2.5 rad/s2 d. 4.9 rad/s2 e. 1.9 rad/s2