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Q. What is GCSE courses?

Q. Why the gun of longer barrel gives much velocity to the shell?

A TRICK

The victorians were fond of a parlour demonstration using inertia. A needle was fixed in the two ends of a broom handle and then balanced with the two needle resting on two wine glasses.The trick was to break the broom handle by hitting it sharply in the entre with another broom handle;
Why this might be possible?
without using wine glasses , Can we measure the two supports at the moment of impact?

Q. What are the relativistic effects which occur at the high velocities contradiction of F=ma?

Q. What is colour effect?

Q. What is weak force?

Q. Why the shell from barrel is released in a rotating way instead of normal way?

Q. What can we say sobering reading.

Q. What is the FBD on wings of the bird?

Q. Can we make a continuous energy by using a dam where the water flows down through the turbine during the day and is then pumped back uphill over night during periods of low electricity demand?

Suppose a space rocket is on the launch pad .there is force acting on the pad.And what will happen on ignition gas is ejected from the rocket but the space rocket has not left the ground at that time. will the force on the pad will increase.

Q. What will happen when a heavy object is kept on the frictionless conveyor belt?

Q.is that necessary that force should act on the centre of mass for the movement of the body or for total net displacement?
(ignoring torqe and couple)