You observe a rocket moving away from you. Compared to the passage of time measured by the watch on your wrist, the passage of time on the rocket's clock is
1.faster.
2.slower.
3.the same.
2
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In a transformer, how many turns are necessary in a 110-V primary if the 24-V secondary has 100 turns?
A) 458 B) 240 C) 110 D) 22 E) 4
The helium flash is the cause of some supernovae
Indicate whether the statement is true or false
Why is Venus so much hotter than Earth?
A) Venus has significant amounts of carbon dioxide in its atmosphere. B) Venus is more massive. C) Venus rotates more slowly. D) Venus was formed before the Earth was. E) Venus is closer to the Sun.
Slanting Surfaces Without Friction: A 15-kg block is on a frictionless ramp that is inclined at 20° above the horizontal. It is connected by a very light string over an ideal pulley at the top edge of the ramp to a hanging 19-kg block, as shown in the figure. The string pulls on the 15-kg block parallel to the surface of the ramp. Find the magnitude of the acceleration of the 19-kg block after the system is gently released?
A. 4.0 m/s2 B. 3.8 m/s2 C. 4.2 m/s2 D. 4.5 m/s2