What is true of a mechanical wave? @3.2. P. B5 @1

A)

It must travel in a vacuum

B)

It must have a medium.

C)

It must travel in empty space.

D)

Both sound and light are examples

How was the gravitational constant G first determined

Which of the follow are examples of an object accelerating? (choose 4) A car turning a corner A ball rolling on the ground and slowing down OA box being pushed on the ground at a constant velocity A ball falling A paper falling to the ground with a

Consider again the objects you ranked by distance in Part A. Suppose each object emitted a burst of light right now.

Which of the following is not true about a vertical component? The vertical component of a projectile changes due to gravity. The vertical component acts the same as an object in free fall.

The absorption values for 1 mm of pyrex at 320 nm and 280 nm are 0.15 and 1.3respectively. What are the percent transmissions for 1 mm of Pyrex at these wavelengths

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