What type of change had occurred when a nail rusts

Why would an orange roll of your cafeteria tray if you stopped suddenly

In a research facility, a person lies on a horizontal platform which floats on a film of air. When the person's heart beats, it pushes a mass m of blood into the aorta with speed v, and the body and platform move in the opposite direction with speed

When a liquid is cooled, the kinetic energy of the particles. The force of attraction between the particles, the space between the particles, and the matter changes its state to solid.

Which of the following is an example of speed? A) 8m/s B) 7 m/s north C) - 3 m/s^2 east D) 5 m/s^2 east

If you put two electrons next to each other, would they attract or repel each other? Explain your answer.

Which object is an insulator?

Whats the difference between population density and population size?

A standing wave is established in an organ pipe that is closed at one end. What is located at the open and closed ends of the pipe?

When all parts of a circuit are composed of conducting materials, the circuit is said to be A. parallel. B. closed. C. open. D. shorted.

You travel an an average speed of 20 km/h in a straight line to get to your grandmothers house. It takes you 3 hours to get to her house. How far away is her house from where you started?