Answer the following statement(s) true (T) or false (F)
1. An inertial clock present at two events always measures a shorter time than a pair of synchronized clocks in any inertial reference frame would register between the same two events (as long as the events don’t occur at the same place in that frame).
2. Consider a train moving at a speed of 0.5 relative to the ground. A light in one of its windows blinks repeatedly. An observer on the ground will necessarily see (not observe) those blinks to be separated by a larger time interval than a person on the train would.
1. TRUE
2. FALSE
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A 250 g block is dropped onto a relaxed vertical spring that has a spring constant of k = 2.5 N/cm (Fig. 7-30 ). The block becomes attached to the spring and compresses the spring 12 cm before momentarily stopping. While the spring is being compressed, what work is done on the block by
(a) the gravitational force on it and
(b) the spring force?
(c) What is the speed of the block just before it hits the spring? (Assume that friction is negligible.)
(d) If the speed at impact is doubled, what is the maximum compression of the spring?
The zone of avoidance is the region around the massive black hole found at the center of the Galaxy.
Answer the following statement true (T) or false (F)
Strangeness is conserved observed in strong and electromagnetic interactions, but not in weak interactions
a. True b. False Indicate whether the statement is true or false
Which is a characteristic of irregular satellites?
a. prograde rotation b. orbit closely to parent planet c. spherical shape d. highly inclined orbit e. relatively large in size