Starting from rest, a car travels 1350 meters in 1.00 minute. It accelerated at 1.0 m/s2 until it reached its cruising speed. Then it drove the remaining distance at constant velocity. What was its cruising speed?
30 m/s
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When warm air moves into a cold air mass, the less-dense warmer air rides up over the colder, denser air. This is very similar to
A) orographic lifting. B) adiabatic lifting. C) temperature inversion. D) what happens during a tornado.
A 400-? resistor and an inductor are connected in parallel across a 300-Hz source. If the amplitude of the current in the resistor is equal to that in the inductor, what is the value of the inductance?
a. 0.212 H b. 0.666 H c. 1.33 × 10^–6 H d. 0.333 H
A diatomic molecule has 18 × 10-5 eV of rotational energy in the l = 2 quantum state. What is its rotational energy in the l = 0 quantum state?
A) 60 µeV B) 15 µeV C) 0 eV D) 90 µeV E) 30 µeV
A race car traveling at 100 m/s enters an unbanked turn of 400 m radius. The coefficient of (static) friction between the tires and the track is 1.1 . The track has both an inner and an outer wall. Which statement is correct?
a. The race car will crash into the outer wall. b. The race car will crash into the inner wall. c. The car will stay in the center of the track. d. The car will stay in the center of the track if the driver speeds up. e. The car would stay in the center of the track if the radius were reduced to 200 m.