Physics For a freely falling body, the sum of kinetic energy and potential energy is always Zero Same Variable Unity Zero Same Variable 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 ________ 50 J 20 J 40 J 30 J 50 J 20 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 1/4 th Is also doubled Becomes half Become 4 times Becomes 1/4 th Is also doubled Becomes half ANSWER DOWNLOAD EXAMIANS APP
Physics Solar energy is converted into chemical energy during Transpiration Osmosis Photosynthesis Diffusion Transpiration Osmosis Photosynthesis Diffusion ANSWER DOWNLOAD EXAMIANS APP
Physics In which of the following cases, kinetic energy is being used in performing work ? 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 Rowing a boat in the lake Driving a car to cover a distance ANSWER DOWNLOAD EXAMIANS APP