During instruction on parachuting, rookies are told to flex their knees while landing. Determine the force of impact on an 80. kg parachutist falling at a terminal velocity of 10
m/s who flexes her knees and takes 0.80 s to land. Consider the case where the rookie
does not flex his legs, and stops in 0.050 s. How much force is applied in this case?

When an object is heated it contracts. a. true b. false

What type of relationship exists between the length of a wire and the resistance, if all other factors remain the same? o a. resistance is directly related to length. ob. resistance is directly related to the square of the length. c. resistance is inversely related to the length. d. resistance is inversely related to the square of the length. reset next

Gas cloud 1 is likely to form a star. gas cloud 2 is not. based on this information, match the given conditions with each cloud