What type of system allows matter and energy to enter and exit?

A. Connected

B. Isolated

C. Closed

D. Open

Name three common minerals in silicates

The energy releasing process that breaks down large molecules into smaller ones is what?

If the volume of a hot air balloon remains constant, what happens as the temperature of the air inside the balloon increases?

After two hours, 1/16 of the initial amount of a certain radioactive isotope remains undecayed. The half-life of the isotope is:

After a long day you go home in your friend's really fancy sports car which has a sun-roof on the top and a spoiler (a little wing-like surface which is above the trunk and the rear wheels.

How far away is a cliff if an echo is heard 0.486 s after the original sound? Assume that sound traveled at 343 m/s on that day.

Rafael swings a baseball bat with a force of 25 N. The baseball bat exerts a force of 5 N on the baseball. What is the mechanical advantage of the baseball bat? The mechanical advantage of the baseball bat is

Minerals such as sulfur can sometimes be identified by colors, true or false.

How does the number of each type of particle in a sodium ion compare with the number of each type of particle in a sodium atom?

Calculate the work done when a 10 N force pushes against a cart 4.0 m