Which of the following can be thought of as either a wave or a particle?

a. light

b. an electron

c. a proton

d. all of the above

Is the dimensions of third equation of motion are correct?

Which of these is a pure substance? A. cake mix B. ocean water C. 10 carat gold D. solid gold

4application of energy from water

Which causes seismic waves? A. movements of the plates B. gravity in the mantle C. movements of the core D. convection in the mantle

2. In order to get a Master's degree a person must have first attended a vocational school earned an Associate's degree received a Bachelor's degree,

A large body of air hats has similar properties of a temperature and moisture is a

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?