Which has more kinetic energy car a with a mass of 50kg moving 2m/s or car b with a mass of 75kg moving 2m/s

A train travels 75 kilometers in 5 hours and then 88 kilometers in 2 hours? what is average speed

When you explain a solar eclipse, waht are you making/doing? A. a prediction B. drawing a conclusion C. scientific inquiry D. classification

Which of the following states of matter has mass? (a) - gas (b) - plasma (c) - all the above

Two closed containers look the same but when is packed with LED and the other with a few feathers how could you determine which has more mass if you end the containers were orbiting in a weightless condition in outer space

An ostrich can run at speeds of up to 72 kilometers per hour. How long will it take an ostrich to run 1.5 kilometers at this top speed?

An Archer needs to hit a bull's-eye On Target at eye level of 60 feet away is the Archer fires the arrow from the eye level with a speed of 47 ft/s at an angle of 25 degrees above the horizontal, will the arrow hit the target

What type of wave is a sound wave A. transverse wave B. longitudinal wave C. light wave D. elctromatic wave

Na+/k+-atpase is considered to be an electrogenic pump because

If the period of a wave is 0.05 s, then what is its frequency?

Which of the following descibes the refraction of a wave?