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Physics
GCSE

a) A car weighs 1500kg, if it is travelling at 7m/s, how much kinetic energy does it have?

To determine the kinetic energy of the car, we need to use the formula for kinetic energy. The formula is KE=(1/2)mv^(2) where m is the mass of the object (in kg) and v is the speed of the object (in mete...

Answered by Wilf S. Physics tutor
2787 Views

Explain what led to the plum pudding model of the atom being replaced by the nuclear model of the atom.

An early model which was based on a scientific idea on atomic structure was the plum pudding model. In this model, it was believed the atom was a sphere of positive charge with negatively charged electron...

Answered by Zoe H. Physics tutor
40320 Views

Explain Ohm's Law

Ohm's Law

Answered by Zeeshaan A. Physics tutor
1878 Views

What is electricity

A transfer of energy via a current

Answered by Andrew G. Physics tutor
2126 Views

A motor does 4.8kJ of work in 2 minutes. What is its power output?

Power is the RATE of work done or energy transferred.
By the Law of Conservation of Energy, energy cannot be created or destroyed, only converted from one form to another. Power is the rate at which ...

Answered by Simran J. Physics tutor
9660 Views

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