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6. Power is a measure of the
a rate of change of momentum
& change of energy
b. force which produces motion
d. rate of change of energy
_7. A block of mass Mis attached to the lower end of a vertical spring. The spring is hung from the ceiling and has
force constant value k. The mass is released from rest with the spring initially unstretched The maximum
tension produced in the length of the spring will be
а. 2Mgk
b. 4Mg/k
с. Мg/2k
d. Mg/k
_8. A 47-kg platform diver hits the water below with a kinetic energy of 60,000 J. The height (relative to the water)
from which the diver dove was approximately .
meters.
130 m
b. 1,276 m
c. 7.83 m
d. 6,122 m
a.
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Transcribed Image Text:6. Power is a measure of the a rate of change of momentum & change of energy b. force which produces motion d. rate of change of energy _7. A block of mass Mis attached to the lower end of a vertical spring. The spring is hung from the ceiling and has force constant value k. The mass is released from rest with the spring initially unstretched The maximum tension produced in the length of the spring will be а. 2Mgk b. 4Mg/k с. Мg/2k d. Mg/k _8. A 47-kg platform diver hits the water below with a kinetic energy of 60,000 J. The height (relative to the water) from which the diver dove was approximately . meters. 130 m b. 1,276 m c. 7.83 m d. 6,122 m a.
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