What does the newton's third law describe?

a. how inertia affects the motion of an object

b. how friction and the normal force are related

c. the relationship between force, mass, and acceleration

d. action-reaction pairs

If a tank filled with water contains a block and the height of the water above point a within the block is 0.8 meter, what is the pressure at point a?

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form

If a rock is thrown upward on the planet mars with a velocity of 12 m/s, its height (in meters) after t seconds is given by h = 12t − 1.86t2. (a) find the velocity of the rock after two seconds. m/s (b) find the velocity of the rock when t = a. 12−3.72a m/s (c) when will the rock hit the surface? (round your answer to one decimal place.) t = s (d) with what velocity will the rock hit the surface? m/s