Thrust a magnet into the opening of a rubber band and it
A) rotates.
B) then has a current in it.
C) both of these
D) neither of these
Answer: D
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Consider a spacecraft that travels round-trip to the zeta reticuli star system (distance 39.5 light-years) at 99% of the speed of light
If the round-trip travel time as measured from Earth is 79.8 years, how much time would pass for passengers on the spacecraft? A) 39.9 years B) 79.8 years C) 22.6 years D) 11.3 years
In glass, which of the following colors of light travels fastest?
a. red b. blue c. yellow d. All three of the above travel at the same speed.
A child is trying to throw a ball over a fence. She gives the ball an initial speed of 8.0 m/s at an angle of 40° above the horizontal. The ball leaves her hand 1.0 m above the ground and the fence is 2.0 m high
The ball just clears the fence while still traveling upwards and experiences no significant air resistance. How far is the child from the fence? A) 0.73 m B) 1.6 m C) 2.7 m D) 3.8 m E) 7.5 m
In geology, a crystal of a particular chemical composition or structure is referred to as a
A) rock B) fossil C) mineral D) stone