A stone is dropped from the top of a building. As the stone falls, does its de-Broglie wavelength increase, decrease, or remains the same? Provide a reason for your answer.

A stone is dropped from rest the top of a building 44.1 m high. It takes 3 s to reach the ground. Use this information to calcualte g.

An isolated conducting sphere id given s positive charge. Does its mass increase, decrease or remain the same ?

A stone is dropped from the top of a building in a high wind. The wind exerts a steady horizontal force on the stone as it falls. The path of the string is

A stone is dropped from the top of a tower and travels 24.5 m in the last second of its journey. The height of the tower is

.A stone is dropped from the top of a building.When it crosses a point 5m .below the top,another stone starts to fall from a point 25m below the top.Both stones reach the bottom of building simultaneously. The height of the building is

A stone is dropped from the top of building and at the same time a second stone is thrown vertically upward from the bottom of the building with a speed of 20 m s^(-1) . They pass each other 3 seconds later. Find the height of the building

Light is incident normally on a small plane surface. If the surface is rotated by an angle of 300 about the incident light, does the illuminance of the surface increase, decrease or remain same ? Does your answer change if the light did not fall normally on the surface ?

When an election in hydrogen atom jumps from the third excited state to the ground state, how would the de-Broglie wavelength associated with the electron change ? Justify your answer.

A small object is dropped from the top of a building and- falls to the ground. As it falls, accelerating due to gravity, it passes window. It has speed v_(1) at the top of the window and speed v_(2) at the bottom of the window, at what point does it have speed (v_(1)+v_(2))/2 ? Neglect the air resistance.