Physics For a freely falling body, the sum of kinetic energy and potential energy is always Zero Variable Same Unity Zero Variable Same Unity ANSWER DOWNLOAD EXAMIANS APP
Physics A body of 4.0 kg is lying at rest. Under the action of a constant force, it gains a speed of 5 m/s. The work done by the force will be ________ 20 J 50 J 40 J 30 J 20 J 50 J 40 J 30 J ANSWER DOWNLOAD EXAMIANS APP
Physics If the velocity of a body is halved its kinetic energy ________ Become 4 times Becomes half Becomes 1/4 th Is also doubled Become 4 times Becomes half Becomes 1/4 th Is also doubled ANSWER DOWNLOAD EXAMIANS APP
Physics Solar energy is converted into chemical energy during Photosynthesis Transpiration Diffusion Osmosis Photosynthesis Transpiration Diffusion Osmosis ANSWER DOWNLOAD EXAMIANS APP
Physics In which of the following cases, kinetic energy is being used in performing work ? Rowing a boat in the lake Driving a car to cover a distance Wind mill grinding wheat grain Paddling the bicycle to cover a distance Rowing a boat in the lake Driving a car to cover a distance Wind mill grinding wheat grain Paddling the bicycle to cover a distance ANSWER DOWNLOAD EXAMIANS APP
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