A50.0kg box is being pushed along a horizontal surface by a force of 250n directed 28 degrees below the horizontal. the coefficient of kinetic friction between the box and the surface is 0.300. what is the acceleration of the box?

a) 0.769 m/s^2
b) 1.77m/s^2
c) 3.16m/s^2
d) 6.31m/s^2
e) 8.53m/s^2

The functioning of an electron transport chain is analogous to a) a slinky toy going down a flight of stairs. b) a canoe going over a waterfall. c) a person climbing a flight of stairs one step at a time. d) a person leaping from the top to the bottom of a flight of stairs in one jump.

This problem has been solved! see the answera non-uniform fire escape ladder is 6.0m long whenextended to the icy alley below. it is held at the top by africtionless pivot, and there is neglibible frictional force fromthe icy surface at the bottom. the ladder weighs 250n, and it'scenter of gravity is 2.0m along the ladder from the bottom. amother and child of total weight 750n are on the ladder 1.5m fromthe pivot. the ladder makes an angle θ with the horizontal.find the magnitude and direction ofa) the force exerted by the icy alley on the ladderb) the force exerted by the ladder on the pivotc) do your answers in part a and b depend on the angle?

The combining of light nuclei is called blank. blank as in not actually blank. you know what im tryin to say.