Suppose a logs mass was 5kg. After burning, the mass of the ash is 1 kg. Explain what may have happened to the other 4kg?

Safety devices used in electric circuit

The kinetic energy of an object depends on both the objects mass and velocity. a. True b. False

Lisa made the electromagnet shown. What can Lisa do to increase the strength of the electromagnet? She can use a nail with weaker magnetic properties. She can change the direction of the nail. She can move the wire loops closer together.

My Notes A basketball rolls across a classroom floor without slipping, with its center of mass moving at a certain speed. A block of ice of the same mass is set sliding across the floor with the same speed along a parallel line.

What is the speed of electromagnetic radiation in free speed

The difference between the third and fourth ionization energies of scandium is much larger than the difference between the third and fourth ionization energies of titanium. why?

One of the longer sides of a kite is 39 feet. one of the shorter sides is 25 feet. half the length of the shorter diagonal is 15 feet. what is the area of the kite?

The radius of the merry-go-round is 10 meters. The Chile has a mass of 40 kilograms. What is the child's moment of inertia

Of the waves listed, the one with the longest wavelength is a (n) a. X ray. b. radio wave. c. microwave. d. visible light wave.

What does it mean to dissolve something