Advertisements
Advertisements
प्रश्न
How many joules are there in 1 mega joule?
एक पंक्ति में उत्तर
Advertisements
उत्तर
1 MJ = 106 joules
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Differentiate between energy and power.
A boy of weight 40 kgf climbs up the 15 steps, each 15 cm high in 10 s and a girl of weight 20 kgf does the same in 5 s. Compare:
- the work done, and
- the power developed by them. Take g = 10 N kg-1.
State the law of conservation of energy.
Is work a scalar or a vector quantity?
A uniform circular motion is an accelerated motion. Justify it.
Name the type of energy possessed by a moving bullet.
A bullet is of mass 'm' g and is moving with a velocity 'v' m/s. Find the kinetic energy of the bullet when
(a) The mass is doubled,
(b) The velocity is tripled.
State the energy changes which take place when A piece of magnesium wire is burnt in a jar of oxygen.
If 60% of the potential energy available in a waterfall is converted into heat energy, find the height of the waterfall, when the temperature difference between the top and the bottom of the fall is 0.210C (sp. Heat cap. Of water = 4200J/kgK).
State whether work is done or not, by writing yes or no, in the following case:
A man pushes a wall.
