When the height of an object is doubled, its gravitational potential energy is increased by a factor of ______________
Fill in the blank(s) with correct word
2
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Gravitational Force: A very dense 1500-kg point mass (A) and a dense 1200-kg point mass (B) are held in place 1.00 m apart on a frictionless table. A third point mass is placed between the other two at a point that is 20.0 cm from B along the line connecting A and B. When the third mass is suddenly released, find the magnitude and direction (toward A or toward B) of its initial acceleration. (G = 6.67 × 10-11 N ? m2/kg2)
What will be an ideal response?
A battery has an internal resistance of 4.0 ?. Which of the following load resistors would have the most power delivered to it when connected across the battery?
A. 1.4 ? B. 2.0 ? C. 4.0 ? D. 8.0 ? E. 16 ?
What would happen if the fusion rate in the core increased but the core could not expand?
A) The Sun's core would heat and the rate of fusion would increase further. B) The Sun's core would reach a new equilibrium, but at a cooler temperature. C) The Sun's core would reach a new equilibrium, but at a higher temperature. D) The Sun's core would cool and the rate of fusion would decrease.
An air mass with circulatory motion is called
A) convectional. B) orographic. C) adiabatic. D) frontal.