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Astronomy is one of the oldest sciences.

True

False

An object is tossed upwards with the same inital velocity on the earth then on the moon. Will the maximum height reached be: grater on the earth b) greater in the moon c) the same as on the earth and the moon.

Some lactic acid in the muscles dissipates during.

What type of force pulls in two opposite directions?

A drag racer completes a race in 14.3 s. If the drag racer has an average speed of 251 km/h, how long is the racetrack?

A student walks 3 kilometers to school in 33 minutes. How fast does she walk? What are the best units?

Ian walks 2 km to his best friend's house, then walks 0.5 km to the library. He then makes a 2.5 km walk home. The entire walk took him 3 hours. What is his average speed in km/h? SHOW YOUR WORK!

What would happen if earth gravity suddenly disappeared?

How many layers of material were the roads made of? a. two c. four b. three d. five

Red light has a shorter wavelength than yellow light.

Approximately what is the parallax angle of a star that is 20 light-years away?