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Levels Tought:
Elementary,Middle School,High School,College,University,PHD
| Teaching Since: | May 2017 |
| Last Sign in: | 398 Weeks Ago, 1 Day Ago |
| Questions Answered: | 66690 |
| Tutorials Posted: | 66688 |
MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
A weight lifter lifts a mass m at constant speed to a height h in time t. What is the average power output of the
weight lifter? (A) mg (B) mh (C) mgh (D) mght (E) mgh /t
37. A block of mass m slides on a horizontal frictionless table with an initial speed vo. It then compresses a spring
of force constant k and is brought to rest. How much is the spring compressed from its natural length?
(A)
g
v
2
2
0 (B) 0 v
k
mg (C) 0 v
k
m (D) 0 v
k
m (E) 0 v
m
k
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