A planetary explorer vehicle on Earth weighs 557 pounds, what would it weigh on the
surface of Venus, which has 9/10 the gravity
of Earth?
A. more than on the Earth
B. less than on the Earth
C. the same as on Earth

The tilt of the earth's axis of rotation is responsible for the a) ocean's tides. b) size of the moon. c) brightness of stars. d) earth’s seasons.

If you chip a tooth, most likely you will go to the dentist to have the missing material filled in. currently the material used to fill in teeth is a polymer that is flexible when put in, yet is hardened to the strength of a tooth after irradiation with blue light at a wavelength of 461 nm. what is the energy in joules for a photon of light at this wavelength?

Which change to the system wood cause the freely-moving piston to lower?