Newton's law of gravitational force is expressed as follows:
a. An object with no force on it moves in a straight line with constant velocity.
b. An object with a force on it is accelerated in the direction of the force an amount inversely proportional to its mass and directly proportional to the size of the force.
c. For every action there is an equal and opposite reaction.
d. The force between two objects is directly proportional to the product of their masses and inversely proportional to the distance between them squared.
d
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Obtaining a prescription for penicillin for your roommate because she doesn’t have a primary care physician is an example of ____.
(A) drug diversion (B) drug abuse (C) drug dependence (D) antabuse (E) drug misuse
Approximately how long ago was Pluto discovered?
A) about 2000 years ago B) about 25 years ago C) about 75 years ago D) in ancient history E) about 200 years ago
Two charged bodies separated by a distance d exert an electrical force on each other. The distance d is doubled. The electrical force on each body is now __________ times the original force
Fill in the blank(s) with correct word
A 10-g bullet moving horizontally with a speed of 2.0 km/s strikes and passes through a 4.0-kg block moving with a speed of 4.2 m/s in the opposite direction on a horizontal frictionless surface. If the block is brought to rest by the collision, what is the kinetic energy of the bullet as it emerges from the block?
a. 0.51 kJ b. 0.29 kJ c. 0.80 kJ d. 0.13 kJ e. 20 kJ