Why is friction between moving parts of machines undesirable?

Why is it easier to walk on a carpeted floor than on a smooth polished floor

Technician A says a refrigerant identifier is only needed when the technician is unsure of the refrigerant used in an AC system.

A neutral atom may contain 8 protons

Malleability, because it shows how adjacent layers of positive ions can move relative to one another while remaining in full contact with the electron sea.

Two movers are pushing a large crate with a force of 60.0 N each One pushes north the other pushes east what is the equilibrant force

A car rounds a 75-m radius curve at a constant speed of 18 m/s. a ball is suspended by a string from the ceiling the car and moves with the car. the angle between the string and the vertical is:

Emission of light from an atom occurs when an electron

Which is an example of transfroming potential energy to kinetic

Place the ball in the plastic bag, and twist the top so the ball is secure in the bag. Wrap the twisted portion with tape so it stays tight. Use the hole punch or scissors to poke a hole in the part of the bag that's above the ball.

Choose The units of 1/4πε0 are: A. N2C2 B. N • m/C C. N2 • m2/C2 D. N • m2/C2 E. m2/C2