Estimate the following:
(a) The change in your gravitational potential energy on taking an elevator from the ground floor to the top of the Empire State Building. The building is 102 stories high (assuming a 3 min ride to the top of the building). (Assuming your mass is 68 kg and the height of one story to be 3.5 m.)
(b) The average force exerted by the elevator on you during the trip.
(c) The average power delivered by that force.
Answer:
You might also like to view...
A car headlight and an interior dome light use the same voltage, but the headlight consumes much more power because
a. its resistance is lower. b. the current in it is larger. c. it uses energy faster. d. all of the above
A dime is 1.8 cm in diameter. At what distance from your eye would you have to hold a dime so that it has the same angular diameter as the full moon
a. 2 m b. 2 cm c. 2 km d. 2 inches e. 2 ft
The rate of flow of electric charge is
a. voltage b. current c. resistance d. electric field e. critical temperature
______ navigation is specific to the content webpage being viewed.
A. Primary B. Subsidiary C. Contextual D. Adaptive