How many types of rocks are there

A pumkin is dropped, after 5 seconds, its velocity is 47 m/s. What is its acceleration? (formula for acceleration:

How much force is needed to stop a 120-kg ice-hockey player if he decelerates at 20 m/s²? a. 6 N b. 240 N c. 2400 N d. 20 N

Consider two pipes of the same length. One pipe is open at both ends and the other pipe is closed on one end but open at the other end.

Why does an ice cube melt when you hold it in your hand? Question 1 options: Heat from the ice cube is transferred to your hand. The ice cube radiates heat to your hand. Your hand transfers temperature to the ice cube.

Do you think copper would have oxidized of it was completly submerged in vinigar

Compare the theories that scientists proposed about the source of the sun's energy with the process of nuclear fusion in the sun

Which wave A or B has a higher energy

What does the law of conservation of energy state about energy in a closed system?

James joule carefully measured the difference in temperature of the water at the top and bottom of a waterfall. Why did he expect a difference

To change gross income, someone would need to? save more per month. reduce deductions. earn more money. increase withholdings.