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Stored chemical energy from food is converted into kinetic energy (ke) as the person runs. As they are running uphill, the chemical energy is also converted into gravitational potential energy (gpe). The ...

We know P=IV and that V=IR. Therefore as we are only given I and R in the question we can make the substitution for V so that P=I²R.
By plugging in the numbers we get: P=2²x 12=...

The initial velocity of the ball is 0, and so the only relevant force acting on it is weight pulling it downwards, so, the ball accelerates towards the ground. As the ball falls it hits air particles whic...

You are given the following values: M_e = 6x10²⁴ kgR_e = 6.37x10⁶ mA geostationary satellite appears to an observer on the ground to always be at the same positi...

The strong nuclear force is a fundamental force that binds quarks together to form nucleons. The force between nucleons is repulsive between similar nucleons (i.e. protons) before becoming attractive and ...