Acceleration can be best described as:
The ability of an object to stay still.
The ability of an object to speed up.
The ability of an object to stop.
The ability of an object to slow down.

The ability to speed up

Explanation:

Speed up since the motion is rising , thats acceleration

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.

magnified images possible images can be real = projected onto a screen