A sound wave has a wavelength of 20m. Find its frequency.

Two balls are dropped from the same heigth at the same time the first ball is released with zero velocity the second ball is thrown with a velocity of 10 m/s to the east gravity is the only force acting on the two balls wich statement are true

You're carrying a 3.2-m-long, 24kg pole to a construction site when you decide to stop for a rest. You place one end of the pole on a fence post and hold the other end of the pole 35cm from its tip.

In which direction does the moving force of air flow? from warm temperatures to cold temperatures from areas of high pressure to areas of low pressure from east to west from high elevations to low elevations

A substance maintaining a uniform appearance throughout

Is orange juice in an orange potential energy or kinetic energy?

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.