Ask a New Question

Question

How much energy is required to move a 900 kg object from the Earth's surface to an altitude twice the Earth's radius?
13 years ago

Answers

Count Iblis
The potential energy increase is:

W = - M m G/(2R) + M m G/R

where M is the mass of the Earth, m is the mass of the object and R is the Earth's radius and G is the gravitational constant.

We can simplify the expression for W:

W = 1/2 M m G/R = m R/2 (M G /R^2) =

m R/2 g = 2.82*10^10 J
13 years ago

Related Questions

How much energy is required to raise 1 gram of water from -15 C to 110 C? how much energy is required to raise 5 kg of silver 36 degrees celcius with a specific heat of 234 j... how much energy is required to obtain superheated steam at 115 degrees celcius from 25 grams of wate... How much energy is required to accelerate a 8000 kg car from 14 km/h to 95 km/h? How much energy is required to heat 36.9g of ice at 0 degrees celsius to water at 0 degrees celsius? how much energy is required to vaporize 1.5 kg of copper? how much energy is required to lower the temperture of 450g of sand from 60 celsius to 15 celsius How much energy is required to convert 360 gram of ice having temp -10 c to convert in to steam How much energy is required to lift a 40.00 kg bag of sand 1.02 m How much energy is required to change 150.0 g of water from 10.0°C to 45.0°C? (Cwater = 4.18 J/g • °...
Ask a New Question
Archives Contact Us Privacy Policy Terms of Use