What is the study of matter and energy called?

If the earth were not revolving around the sun would the earth fall into the sun? Why?

A housefly with a mass of 0.00100 kilograms zooms through the room at a rate of 2.20 m/s. How much kinetic energy does it have?

A car traveling in a straight line has a velocity of 6m/s at some instant. After 6.32s its velocity is 13.2m/s. What is the average acceleration in this time interval?

The big bang theory of the information and expansion of the universe is supported by the observed

What happens to the density as one progresses through the layers of the earth from the lithosphere toward the inner core

An apple drops from a tree and hits the ground in 1.5s what is its speed just before it hits the ground?

Sound travels slow in cold air. Why does the speed of sound depend on air temperature?

A tow truck pulls a 500 kg car so that the car accelerates 2 m/s2. What is the net force on the car? 250 N 498 N 1000 N 502 N

Which force keeps you near earths surface?

Name one process that requires a force in the human body.