2 cannons fire projectiles upwards with the same velocity. The
cannonball on the left has 4 times the mass of the cannonball on the
right. What can be correctly concluded about their trajectories?

The specific heat of silver is 0.057 calories/gram°c. if 10.0 grams of silver were heated and the temperature of the sample changed by 20.0°c, how many calories of heat energy were absorbed by the sample?

How does the image distance (di) of a convex lens compare with the image distance of a concave lens? a. the image distance of the convex lens is positive, and that of the concave lens is negative. b. both are negative for a virtual image. c. both are positive for a virtual image d. the image distance of the convex lens is negative, and that of the concave lens is positive.

Aball has an initial velocity of 3 m/s. if there is no friction, what is the highest it could roll?