If Star A is twice as far as Star B, and they are identical in all other ways, then the

brightness of Star A would be

Leaves changing colors in the fall is an example of a A. Physical change B. Phase change C. nuclear change D. Chemical change

What does trajectory mean?

When two waves undergo complete, constructive interference, which of the following increases? A. speed B. amplitude C. wavelength D. frequency

What scientific principle (s) does the toy yo-yo use? Explain in simple words if you can.

What freedom did redode island offer that other colonies did not

Two persons are applying forces on two opposite sides of a moving cart. The cart still moves with the same speed in the same direction. What do you infer about the magnitudes and direction of the forces applied?

SI unit of mass and gravity

What is the difference between porosity and permeability

In the diagram below, the planets' relative distances from the Sun are shown. The sizes of the planets are not drawn to scale.

Should athletes be benched if their grades are too low, or should they be allowed to play anyway?