Mention the physiological processes taking place in resting phase for which energy is required. What will be the calorie requirement for an adult man and a woman on the basis of workload?

An input of energy is requires for which one of the following processes?

What is calorie? What is the difference between the calorie used in physics and nutrition. What are the causes of requirement of calorie during resting state? Describe the calorie requirement of 7-12 years old school going girls?

Equal moles of hydrogen and oxygen gases are placed in a container with a pin-hole through which both can escape. What fraction of the oxygen escapes in the time required for one-half of the hydrogen to escape-

A long -sighted man can clearly see at any distance beyond 2.5 m . What kind of lens in his spectacles does require to read books placed 25 cm from his eyes?

A 4 kg block A is placed on 8 kg block B which rests on a smooth table. Block A just slips on B when a force of 12 N is applied on A. What is the maximum horizontal force F on B required to make both A and B move together?

A satellite of mass 1000 kg moves in a circular orbit of radius 7000 km around the earth. Calculate the total energy required to place the satellite in orbit from earth's surface. Take Radius of earth =6400 km and g=10 m*s^(-2) .

In has been estimated that the total energy radiated by the sun is 3.8xx10^26 J per second. The source of energy of stars is a thermonuclear reaction called nuclear fusion. Fusion reactions are not controlled. It is presumed that the energy of stars is due to two processes called proton-proton cycle and carbon nitrogen cycle. Fusion cannot take place at ordinary temperature. This, hydrogen bomb uses a small fission bomb, which on explosion causes the temperature to rise very high about 10^7 K. We have yet to see how a hydrogen bomb can be used for peaceful life-sustaining purpose. Energy released in the process of fusion is due to mass defect. It is also called Q-value. Q =Deltamc^2 , Deltam= mass defect Answer the following questions based on above passage: Fusion reaction takes place at about: