Assume it takes 7.00 minutes to fill a 30.0 gal gas tank. (a) calculate the rate at which the tank is filled in gallons per second. (b) determine the rate at which the tank is filled in cubic meters per second. (c) determine the time interval, in hours, required to fill a 1.00 m^3 volume at the same rate. ( 1 us gal = 231 in.^3)

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.

If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.

A51 kg woman skis down a hill and her kinetic energy is 9.96e4 j. what is her speed?