Shake an object to and fro if you want to judge its
A) mass.
B) weight.
C) both the same
D) none of the above
Answer: A
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Energy Conservation With Conservative Forces: A 60-kg skier pushes off the top of a frictionless hill with an initial speed of 4.0 m/s. How fast will she be moving after dropping 10 m in elevation? Air resistance is negligible.
A. 0.20 km/s B. 15 m/s C. 10 m/s D. 0.15 km/s E. 49 m/s
Chemists refer to molecules containing carbon atoms as
A) carbonic B) organic C) carbonaceous D) inorganic
Simple molecules containing only carbon and hydrogen are referred to as
A) carbon hydrides B) hydrocarbons C) carbohydrides D) hydrogen carbides
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?