All phases of matter may have a fixed mass.

a. True

b. False

superman lived on another planet where the acceleration due to gravity is 23.6 m/s^2. if a woman falls from a building that is 65m tall, how long he have to save her before she hits the ground

If you can throw a stone straight up to height h, what's the maximum horizontal distance you could throw it over level ground?

Why did dad leave mom?

Getting burned by a hot cup being taken from the microwave is an example of heat transfer by A convection B radiation C conduction D sublimation

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

An ice rink is 200 feet long and 85 feet wide. The four corners of the rink are rounded to a radius of 24 feet. What is the surface area of the rink? Round the answer to the nearest square foot.

Which statement is correct about gasoline when it is burned? Heat energy is created by the gasoline. The total energy of the gasoline decreases. Chemical energy in the gasoline is destroyed. Chemical energy is transformed into heat energy.

The tilt of the Earth's axis of rotation changes over a period of 41,000 years. Which of these statements best predicts a long term effect of the changes in the tilt of the Earth's axis of rotation? a. The Earth's climate would change. b.

What do keratinized cells form?

Explain why Planck's introduction of quantization accounted for the properties of black-body radiation.