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Physics
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What is the minimum height of a hill, so a ball of mass m falling from it can go through a loop of radius R?

There is only one requirement for the ball to go through the loop. Its energy must be such that the centrifugal force experienced by the ball when it is at the peak of the loop is greater than gravity pul...

Answered by Gabriel P. Physics tutor
2371 Views

A block of mass 5kg is placed on the end of a meter rule on the end of a table. Calculate the moment that is produced by the block.

1.Moment=Force x Distance2.Convert mass into weight (x9.81)3.Times the weight by the distance from the pivot point.4.If done correctly the answer should be 49.06NKg (Don't forg...

Answered by Cameron B. Physics tutor
1460 Views

Derive the Drift Velocity Equation

(The drift velocity is the average velocity of a charge carrier due to an electric field)Consider a conductor with length l and cross sectional area AThere are n electrons per unit volum...

Answered by Francois M. Physics tutor
3070 Views

Explain Ohms Law

Ohms law establishes a relationship between resistance, voltage and current, saying that V/I = R. The traditional graph given for ohmic resistors is:An increasing line with gradient x starting at (0,0)

Answered by Lina L. Physics tutor
1573 Views

Distinguish between internal energy and temperature

Internal energy is the total EK and PE of the molecules/particles/atoms in and objectTemperature is a measure of the average KE of the molecules/particles/atoms

Answered by Lina L. Physics tutor
1066 Views

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