What is the magnitude of the electric field 36.0 cm directly above an isolated 2.71*10-5 C charge? Express your answer to three significant figures and include the appropriate units.

A 1500 kg car rounds a horizontal curve with a radius of 52 m at a speed of 12 m/s. what minimum coefficient of friction must exist between the road and tires to prevent the car from slipping?

Which illustration represent the substance at a higher temperature? Explain.

A car accelerates from 10m/s to 20m/s over a distance of 80m. What is its acceleration?

A hockey player has an acceleration of - 3.1m/s2 how long does it take him come to a complete stop from a speed of 13m/s

When do you produce more pressure on the ground ... standing or laying down?

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.

Which of the following situations would produce an average velocity of zero? A) a round-trip to school and back B) a horse galloping in a field C) the criss-crossing path of a flying bug D) a trip, first to the moon, then onto Mars