When light does not pass through or bounce off an object it is what

the fabric of the hot air balloon can stretch, but it does not allow air to pass through it. think about the change in air density you expect as the pilot adds hear to the air in the balloon.

You need to measure the length of your driveway. Which measuring tool would produce accurate results that you would expect to be the same as those found by others?

What experimental term is it called when a ruler is dropped to the floor?

What is the average amount of time wind machines operate

A force is applied to a 13.0 kg wagon to pull it down the sidewalk at a constant speed. The coefficient of kinetic friction is 0.65. Considering the resulting frictional force, what is the magnitude of the applied force?

This particle is found in the nucleus and adds mass to the nucleus, but changing its number does not change what the element is. This particle is the A. proton. B. photon. C. neutron. D. electron.

Projectile motion is an example of what kind of motion

What can change scientific knowledge?

6. What is ductility?

During practice, a baseball player hits a very high fly ball, and then runs in a straight line and catches it. Which had the greatest displacement during the time period from the hitting of the ball to its catching