After walking across a carpeted floor in socks, Jim brings his finger near a metal doorknob and receives a shock. what does that demonstrate

Alex goes cruising on his dirt bike. He rides 700m north, 300m east, 400 m north, 600m west, 1200m south, 300m east and finally 100m north What distance did he cover? What was his displacement Also every Kilometer is = to.

The faster am igneous rock cools the_ the crystal size

A machine called a centrifuge is used in

An electron in the n = 5 level of an h atom emits a photon of wavelength 1282.17 nm. to what energy level does the electron move?

A certain 100W light bulb has an efficiency of 95%. How much thermal energy will this light bulb add to the inside of a room in 2.5h if the bulb is on for the whole time?

What is the least dense part of the atmosphere?

A small plastic building brick (like a Lego piece) and a ceramic piggy bank filled with coins are displayed on the same shelf. Which has more potential energy? Why?

The angle at which a wave strikes a surface is ___ the angle at which the wave is reflected. Which is correct A.) equal to B.) smaller than C.) larger than D.) perpendicular to

An 85-kg refrigerator is located on the 70th floor of a skyscraper (4km above the ground) what is the potential energy

A 3.0 N force and a 5.0 N force are acting in opposite directions on the same 5.0 kg ball. What is the magnitude of the acceleration of the ball?