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Units of electricity are measured in kWh (kilowatt-hours).
We have our power in kW (2 kW)
We have our time in minutes (30 minutes)
Looking at the units, we can see that:
kW x minutes =...

I have been interested in physics my whole life, when I was 12 I made my own wind turbine out of a plastic bottle (along with a few other materials!). I took both GCSE and A level physics and just fini...

Acceleration is defined as the rate of change of velocity. Since velocity is a vector quantity (it has both magnitude and direction) defined as speed in a particular direction, any change in either spe...

We start with the following two observations about an object undergoing constant acceleration. First, its acceleration is equal to the change in its velocity over time, hence,

a=(v-u)/t.<...

Just equate the centripetal force and gravitational force acting on the ISS and find v.

P. S. Google the radius and mass of the Earth, the distance to the ISS from the ground, the mass of...