No, according to physics no work has been done.
Work must have been done by muscular force but in terms of physics no work has been done.
In physics,work is said to be done only if the force applied produced some kind of displacement in the direction of force.
In this example provided, no work has been done since the boulder doesn't get displaced,it continues to remain at its original position.
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Answer:
Explanation:
There's no equation attached. What equation is it?
56km/s is 201600m/hr to its equivalent.
1. True
2. True
3. False
4. True
5. True
3. Heat can be thought of as the movement of particles (molecules etc). The faster they move the hotter things are. Energy of movement is called kinetic energy. Temperature is a measure of the average kinetic energy of the particles, while thermal energy is the total kinetic energy of the particles.
