NEED ANSWER ASAP A 75 kg skydiver is falling at a steady speed. Gravity is exerting 740 N of force on him. How many newtons of air resistance force is acting on his body?

Which system of units is used by only a small number of countries in the world, including the u. s.

Consider a small frictionless puck perched at the top of a fixed sphere of radius r. if the puck is given a tiny nudge so that it begins to slide down, through what vertical height will it descend before it leaves the surface of the sphere? [hint: use conservation of energy to find the puck's speed as a func e conservation of energy to find the puck's speed as a function of its height at what value of this normal force does the puck leave the sphere? ] here on the puck.

What happens to the vapor pressure of a substance when its surface area is increased at constant temperature?