The acceleration of gravity upon Mars' surface is 3.75 m/s/s. At a location of '2R' above Mars' surface (where 'R' is the radius of the Mars), the acceleration of gravity is closest to m/s/s.

carla slowed down in the beginning of her trip, stopped, and then sped up

your answer would be fusion

answer: 802.3 kilo joules of energy represents 191.75 kilo calorie of energy.

explanation:

energy released during combustion of one mole methane = 802.3 kilo joules

if 1 kilo joule = 0.239006   kilo calorie

then ,802.3 kilo joule will be = 802.30.239006 kilo calorie

802.3 kilo joule = 191.75 kilo calorie

hence, the energy in kilo calorie is 191.75 kilo calorie.

answer: b.

explanation: