What type of energy is present in a barbell being lifted or a shot-put being thrown? a. mechanical energy b. thermal energy c. chemical energy d. electrical energy.

Abowling ball rolling down the lane toward the pins has gravitational potential energy. a. no b. a lot of c. a little

Compare the patterns of the two waves shown in the image. which statement is true about these waves?

Objects a and b are visible in the night sky. six months later they are still visible, but object b shows less parallax than object a. which object is closer? a. a b. b c. you would need to wait another six months in order to figure this out. d. you would need to know the objects' angular diameters in order to figure this out.