Exhibit 16-1
A graph of position versus time for an object oscillating at the free end of a horizontal spring is shown below.
?
?
Use this exhibit to answer the following question(s).
Refer to . A point or points at which the object has positive velocity and zero acceleration is(are)
a.
B
b.
C
c.
D
d.
B and D
e.
A and E
e
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Buoyancy: A wooden block contains some nails so that its density is exactly equal to that of water. If it is placed in a tank of water and released from rest when it is completely submerged, it will
A. rise to the surface. B. sink to the bottom. C. remain where it is released.
A solid ball of mass 1.0 kg and radius 10 cm rolls with a forward speed of 10 m/s when it comes to a hill. There is enough friction on the hill to keep the ball from slipping as it rolls up
(a) How high vertically up the hill can the ball roll before coming to rest? (b) How high vertically could the ball go if the hill were totally frictionless? (c) How is it that the ball can go higher with friction than without friction?
The difference between the pressures inside and outside a tire is called
a. absolute pressure. b. gauge pressure. c. atmospheric pressure. d. psi. e. none of the above.