Explain why it is important to check your brake fluid regularly. explain what happens to the fluid when you step on the brake of a car and how that fluid then acts to make the car slow down. and explain why it is important to make sure that your car always has an adequate supply of brake fluid.

Asimply means that over time there was some sort of change.

Aray of light traveling parallel to the principal axis of a concave mirror will be reflected through the mirror's

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.