Posted by **Wayne** on Tuesday, August 27, 2013 at 10:37am.

Calculate the rest mass (In grams) of an object whose rest energy is equal to the energy released by a tonne of tnt the energy liberated by 1 g of tnt = 4kJ

Rest energy = moc 2

1 tonne of tnt equals 10^6 x 4kJ =

4 x 10^6 kJ x (3.0^8)sqrd = 3.6 x 10^23kJ

is this right ?? i cannot work out the grams can anyone help please .. thanks

## Answer This Question

## Related Questions

- physics - The kiloton, which is used to measure the energy released in an atomic...
- Astronomy - Consider an asteroid of radius 2 km and density 2,500 kgm3 impacting...
- physics - A particle has a kinetic energy equal to its rest energy. (a) What is ...
- Physics - A 245 g particle is released from rest at point A inside a smooth ...
- physics - A 278 g particle is released from rest at point A inside an smooth ...
- Phsyics - Can someone give me some pointers on calculating the rest energy of a ...
- physics - A 2.10-g particle is released from rest at point A on the inside of a ...
- physics - a 2 kg object is released from rest from a height of 10 m above the ...
- Physics - The electric potential energy of an object at point A is known to be ...
- PHYSICS - Kinetic Energy and the Work/Energy Theorem: 1.) How much kinetic ...

More Related Questions