Please help

What are the mass and weight of a 50 kg stone on planet Earth?

500 Newtons

Explanation:

Mass of the stone = 50 kg

Acceleration caused due to gravity on Earth (g) = 9.81 m/s^2 = 10 m/s^2

We know that,

F=ma

Hence,

W=mg

So,

The weight of the stone on Earth = 50 * 10 = 500 Newtons

answer: strength i guess

explanation:

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.