What happens when a penny is dropped from a height of 20 meters?
a. it falls at a constant velocity
b. its mass doubles for every second it falls
c. the force of gravity causes it to accelerate
d. it changes direction every 9.8 meters?

What will most likely happen when two bromine atoms bond together?

Which type of precipitation would most likely form when the surface air temperature is slightly below freezing and the air temperature increases as you move upward away from the ground?

A4.86 g piece of metal was placed in a graduated cylinder containing 15.5 ml of water. the water level rose to 17.3 ml. what is the density of the metal. i need the steps of how to solve it to so i can use a formula to work out other problems.