The acceleration due to gravity on the surface of mars is about one third the acceleration due to gravity on earth���s surface. the weight of a space probe on the surface of mars is about
a. three times greater than its weight on earth���s surface.
b. one third its weight on earth���s surface.
c. the same as its weight on earth���s surface.
d. nine times greater than its weight on earth���s surface.

Distinguish between a transverse wave and a longitudinal wave.

Which planet do you think would be easiest for humans to colonize some day?

Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.