According to Newton’s 2nd Law
A. If the force is doubled and the mass remains the same the acceleration will halve.
B. If the force is doubled and the mass remains the same the acceleration will double.
C. If the force is doubled and the mass remains the same the acceleration will increase by a factor of 4.
D. If the force is doubled and the mass remains the same the acceleration will decrease by one-fourth.
B. If the force is doubled and the mass remains the same the acceleration will double. (a = F/m)
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Which jovian planet has the most extreme seasonal changes, and why?
A) Uranus, because of its extreme axis tilt B) Jupiter, because of its large mass C) Saturn, because it has an axis tilt similar to Earth D) Neptune, because of its varying distance from the Sun
A constant net force acts on an object. Describe the motion of the object
A) constant non-zero velocity. B) constant non-zero acceleration. C) increasing acceleration. D) decreasing acceleration. E) zero acceleration.
A shock wave is produced when the speed of an object
A) matches the speed of sound in air. B) exceeds the speed of sound in air. C) greatly increases in amplitude. D) none of the above
A huge explosion is heard 20 miles away. How long does it take the sound to travel that far? (20 miles = 32,000 meters)