Energy Conservation With Conservative Forces: A prankster drops a water balloon from the top of a building. If the balloon is traveling at 29.1 m/s when it strikes a window ledge that is 1.5 m above the ground, how tall is the building? Neglect air resistance.
A. 45 m
B. 43 m
C. 46 m
D. 47 m
Answer: A
You might also like to view...
The objective of most radio telescopes is similar to the objective of a reflecting optical telescope in that
a. they are both concave in shape b. they are both convex in shape c. they are typically the same size d. they are both made of metal. e. they have nothing in common.
Why does the burning of fossil fuels increase the greenhouse effect on Earth?
A) The heat from the flames warms the planet. B) Burning fossil fuels releases carbon dioxide into the atmosphere. C) Burning fossil fuels depletes the amount of ozone, thereby warming the planet. D) Burning fossil fuels produces infrared light, which is then trapped by existing greenhouse gases.
A 60.0-Hz AC generator with a peak voltage of 110 V drives a series RL circuit with R = 10.0 ? and L = 10.0 mH. The power factor, cos ?, is
A. ?1.00. B. ?0.936. C. +0.943. D. +0.936. E. +1.00.
The seasonal polar caps on Mars, which grow and shrink over the year, are primarily carbon dioxide
Indicate whether the statement is true or false