Why is the formation of sand a physical change

An Object with a mass of 40kg is moving at a velocity of 10 m/s. Determine its kinetic energy

Solar radiation that is visible at the earths surface is

When striking, the pike, a predatory fish, can accelerate from rest to a speed of 4.2m/s in 0.15s. How far did it move during the strike?

The volume of a gas with a pressure of 1.2 atm increases from 1.0 l to 4.0 l. what is the final pressure of the gas, assuming constant temperature? tip: use boyle's law

Stress is a factor that contributes to heart disease risk. true or false

January 1st 37°F January 7th 48°F January 14th 52°F January 18th 51°F January 21st 45°F January 25th 41°F January 31st 55°F When looking at a data set of numbers, the mean is the average. Look at the table above.

The vector quantity that defines the distance and direction between two positions.

Which statement is true? Select one of the options below as your answer: A. Quarks always occur in groups with leptons. B. Quarks always occur independently. C. Quarks always occur in groups with other quarks. D.

Peat is actually the early stage of

Explain how electric current is able to flow.