Aobject of mass 33 is dropped from a height of 85 meters. calculate the average power developed by the object in falling through this distance.
take g as 9.81 m/s^2
give the answer in watts to three significant figures

Suppose you were asked to find the torque about point p due to the normal force n in terms of given quantities. which method of finding the torque would be the easiest to use?

The us government wants to allocate billions of dollars in the next 10 years to assure our future energy security. the funds will be spread among a variety of possible energy resources. where do you think the government should put the greatest support: solar energy, wind energy, clean coal, oil exploration, gas exploration, or a combination of sources? are there other efforts that should be explored? support your position with cited information for both questions.

What are the factors that affect the resistance of a wire?