A2.00 kg box slides on a rough, horizontal surface, hits a spring with a speed of 1.90 m/s and compresses it a distance of 10.0 cm before coming to rest. determine the force constant (in n/m) of the spring, if the coefficient of kinetic friction between the block and the surface is μk = 0.660.

16. a brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a force of 800 n on him. the mass of the losing player plus equipment is 90.0 kg, and he is accelerating at 1.20m/s2 size 12{1 "." "20"" m/s" rsup { size 8{2} } } {} backward. (a) what is the force of friction between the losing player’s feet and the grass? (b) what force does the winning player exert on the ground to move forward if his mass plus equipment is 110 kg? (c) draw a sketch of the situation showing the system of interest used to solve each part. for this situation, draw a free-body diagram and write the net force equation.

It takes a lot of energy to get the temperature of water to increase and eventually boil because water has a high heat.

According to the image below, which season is about to begin in the southern hemisphere? a. summer b. autumn c. winter d. spring