The work done by a force `F_1` is larger than the work done by another force `F_2`. Is it neccesary that power delivered by `F_1` is also larger than that of `F_2` ? Why

Applying a force of F =196 N upwards, a body of mass 10 kg is raised up to a height of 10 m. Find the work done by the force F and the work done against gravity. Note that the work done by the force F is more than the gravitational potential energy . Show how the law of conservation of energy is still obeyed.

Why the bond dissociation enthalpy of F_2 is less than that of Cl_2 .

Bond dissociation ehtalpy of F_(2) is less than that of CI_(2) - why ?

Atomic radius of ""_(10)Ne is more than that of ""_(9)F- why?

A body of mass 10 kg is raised to a height of 10 m with an upward force of 196 N . Find the work done by the upward force and the work done against gravitation. Show that the total energy in this case is equal ot the work done by the upward force . [g=9.8 m*s^(-2) ]

The force F acting on a particle moving in a straight line is shown below. What is the work done by the force on the particle in the 1^(st) meter of the trajectory ?

Work done in stretching a wire by 1mm is 2J. Then calculate the work done for stretching another wire of same material but with double the radius and half the length by 1mm.

K is a force constant of a spring. The work done in increasing its extension from l_1 to l_2 will be

The diameter of the smaller piston of a Hydraulic press is d_1 and the larger piston is d_2 . If the applied force on the smaller piston is F_1 then the value of the force F_2 on the larger piston is