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प्रश्न
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उत्तर
Equilibrium is a condition where the amount of a commodity buyers want to purchase is equal to the amount sellers are willing to supply.
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संबंधित प्रश्न
State two factors on which the work done on a body depends.
Give reasons for the following A teacher moving around in the class is doing work but a child standing and reading a book is not doing any work.
Differentiate between energy and power.
A boy throws a rubber ball vertically upwards. What type of work, positive or negative, is done : by the force applied by the boy?
(a) by the force applied by the boy?
(b) by the gravitational force of earth?
Name five appliances or machines which use an electric motor.
Explain the difference between a uniform linear motion and a uniform circular motion.
A machine raises a load of 750 N through a height of 16 m in 5s. calculate:
(i) work done by machine,
(ii) power at which the machine works.
State larger units of power.
An electric motor of power 100 W is used to drive the stirrer in a water bath. If 50% of the energy supplied to the motor is spent in stirring the water. Calculate the work done on the water in one minute.
