An aeroplane flying at 100 m/sec dives in a vertical plane along the circle of radius 200 m. The mass of the pilot is 75 kg. What will be the force exerted by the pilot on his seat when the aeroplane is at the maximum height-

A motor - cycle is moving in a vertical circular path. At what stage will the speed of the motor cycle be maximum ?

A body of mass m crosses the top most point of a vertical circle with critical speed. What will be tension in string when it is horizontal-

A particle of mass m is rotating by means of a string in a vertical circle. The difference in the tension at the bottom and top would be-

This artery passes blood to the kidney is:

Bacteria are included in which of the following kingdoms

3 semicircular canals located above utricle lie –

A particle of mass 2 kg starts moving in a straight line with an initial velocity of at a constant acceleration of . Then rate of change of kinetic energy

A car of mass 1000 kg moves at a constant speed of up an incline. Assume that the frictional force is 200 N and that where, is the angel of the incline to the horizontal. The . Find the power developed by the engine

The work done in dragging a stone of mass 100 kg up an inclined plane 1 in 100 through a distance of 10 m is (take )

Statement ITwo particles moving in the same direction do not lose all their energy in a completely inelastic collision.
Statement IIPrinciple of conservation of momentum holds true for all kinds of collisions.

If momentum is increased by 20%, then kinetic energy increases by

A spring gun of spring constant 90 is compressed 12 cm by a ball of mass 16 g. If the trigger is pulled, the velocity of the ball is

The minimum velocity (in ) with which a car driver must traverse a flat curve of radius 150 m and coefficient of friction 0.6 to avoid skidding is

Read the two reaction A and B given below and select the correct option accordingly
A) ADP + Pi ATP
B) ATP ADP + Pi

Therefore the correct option is choice 1

A parallel plate capacitor of area A, plate separation d and capacitance is filled with three different dielectric materials having dielectric constants as shown. If a single dieletric material is to be used to have the same capacitance is this capacitors, then its dielectric constant is given by