If you know the impulse that has acted on a body of mass m you can calculate
a. its initial velocity.
b. its final velocity.
c. its final momentum.
d. the change in its velocity.
e. its acceleration during the impulse.
d
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The surface of Mercury resembles the Moon's surface in that they are both ________.
A. covered with volcanoes B. eroded by wind C. heavily cratered D. newly resurfaced
The temperature of a quantity of an ideal gas is
a. one measure of its ability to transfer thermal energy to another body. b. proportional to the average molecular kinetic energy of the molecules. c. proportional to the internal energy of the gas. d. correctly described by all the statements above. e. correctly described only by (a) and (b) above.
When a body moves with uniform acceleration, the net force on it is zero
a. True b. False Indicate whether the statement is true or false
In an experiment, a student brings up the rotational speed of a piece of laboratory apparatus to 30.0 rpm. She then allows the apparatus to slow down uniformly on its own, and counts 240 revolutions before the apparatus comes to a stop
The moment of inertia of the apparatus is known to be 0.0850 kg?m2. What is the magnitude of the retarding torque on the apparatus? A) 0.0425 N?m B) 0.159 N?m C) 0.0787 N?m D) 0.000278 N?m E) 0.0000136 N?m