A man has a mass of 66 kg on earth. What’s his weight in pounds?

Explain how plate tectonics have changed earth’s surface over time. include the role of plate tectonics in the creation of landforms.

A1kg cart slams into a stationary 1kg cart at 2 m/s. the carts stick together and move forward at a speed of 1 m/sl. determine whether kinetic energy was conserved in the collision. use the law of conservation of energy to explain the collision

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?