If a force on an object is aimed perpendicular to the direction of the object's velocity, the force does
a. no work c. negative work
b. positive work d. any of the above
A
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Constant Acceleration Kinematics: A car is moving with a speed of 32.0 m/s. The driver sees an accident ahead and slams on the brakes, causing the car to slow down with a uniform acceleration of magnitude 3.50 m/s2. How far does the car travel after the driver put on the brakes until it comes to a stop?
A. 4.57 m B. 9.14 m C. 112 m D. 146 m E. 292 m
Spacecraft have imaged erupting volcanoes on Io and Triton
Indicate whether the statement is true or false
Which of the following statements is true?
a. A hot object contains a lot of heat. b. A cold object contains only a little heat. c. Objects do not contain heat. d. Statements a and b are true.
For a wave on the ocean, the amplitude is:
a. the distance between crests. b. the height difference between a crest and a trough. c. one half the height difference between a crest and a trough. d. how far the wave goes up on the beach.