True or false most americans live in rural areas

Serena Williams can serve a tennis ball with 750 Newtons of force. The ball and racquet are in contact for 0.003 seconds. What is the impulse exerted on the tennis ball?

How did the team determine that the body was placed in a wood chipper?

A 1.0 kg football is given an initial velocity at ground level of 20.0 m/s [37 above horizontal]. It gets blocked just after reaching a height of 3.0 m. (a) What is the velocity of the football when it first reaches a height of 3.

Which theory of the spread of human beings is supported most by modern evidence? A. Ice cap theory B. Multi-regional theory C. Out of Africa theory

Why the weight of a body decreases with increases in distance from the earth's surface

How do mountins building and volcanos relate to plate motion at convergent boundaries

A 20kg box is dropped 13m. how much work is done

Suppose a person whose mass is m is being held up against the wall with a constant tangential velocity v greater than the minimum necessary. Find the magnitude of the frictional force between the person and the wall

A ball is being rolled by a normal push of 1000N. it is opposed by friction which has a force of 0.3kN and air resistance which has a force of 23N. Calculate the resultant force.

Consider a Young's two-slit experiment in which the wavelength of light is 37% smaller than the distance between the slits.