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| Teaching Since: | May 2017 |
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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
6. Calculate the efficiency of the following machines:
a. A lever is used to lift a 45 N rock. The applied force is 75 N.
b. A pulley system raises a 39 N log with an applied force of 45 N.
c. You do 425 J of work to push a 75 N box up a ramp until the box is 2.5 m above the ground.
If a nuclear device is dropped very deep in sea, say 15 miles deep, and exploded there, would it cause tsunami waves and go undetected. Similarly if device is placed very deep under surface after deep drilling, as in case of oil drilling, and is exploded there; can it cause an erathquake and go undetected as a nuclear explosion.
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