A moving hammer drives a nail into the wood. It has kinetic energy.

.   A student carries a bag weighing 50 kg from the ground floor to his class on the first floor that is 2 m high. The work done by the boy is

How much time will be required to perform 5200 J of work at the rate of 20 W?

If the velocity of a body is doubled its kinetic energy.

A ball is dropped from a tower height of 100 m.

The gravitational potential energy of an object is due to

The energy possessed by an oscillating pendulum of a clock is

The spring will have maximum potential energy when

A 520kg rocket sled at rest is propelled along the ice by an engine developing a constant thrust of 12 000 N over a distance of 40 m.Assuming all of the work goes into motion, calculate its velocity after 40 m

The product of force and displacement is known as

Calculate the kinetic energy of a 6.0kg bowling ball sliding at 5.0 m s^–1

A gamete contains which of the following?

each gamete receives single allele of a gene.

All types of mutations are transferable among generations.

Germ-line mutations occur in gametes which can be inherited while, somatic mutations cannot be inherited.

Mark the INCORRECT statement about mutation?

mutation is not predestined.
It occurs when DNA is damaged or an error occurs in a DNA.

Damage and errors in DNA cause___________.

damage and errors in DNA causes mutation.

If a car moves 4 m to the east and 6 m to the north, then find the resultant and the direction of the car.