34. mars has two moons, phobos and deimos. phobos has an orbital radius of 9.4 x 10° m and an
orbital period of 0.32 days. deimos has an orbital radius of 23.5 x 108 m.

a. what is the orbital period of deimos?

b. at what height above the surface of mars would a satellite have to be placed so that it
remains above the same location on the surface of mars as the planet rotates below it.
a martian day is equal to 1.02 earth days.

An engineer designs a roller coaster so that a car travels horizontally for 162 ft, then climbs 127 ft at an angle of 31.0° above the horizontal. it then moves 127 ft at an angle of 46.0° below the horizontal. if we take the initial horizontal motion of the car to be along the +x-axis, what is the car's displacement? (give the magnitude of your answer, in ft, to at least four significant figures and give the direction of your answer in degrees counterclockwise from the +x-axis.)

Which features on mars point to the possibility of liquid water on the planet? impact craters with sharp rims volcanic cones with craters gullies and stream-like channels mountain ranges with faults

From 0 to 5 seconds john pushed a box 5 meters. from 5 to 10 seconds, paul pushed the same box another 5 meters. who did more work? a. john b. paul c. john and paul did the same amount of work.