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How can the first order kinematic (SUVAT) equations be derived?

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. Rearranging gives th...
PT
Answered by Peter T. • Physics tutor
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How do I calculate the speed of the International Space Station moving in a circular orbit around the Earth?

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 the ISS and the con...
ED
Answered by Eimantas D. • Physics tutor
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What is Olbers' paradox?

Olbers' paradox is a thought experiment that arises in cosmology* which shows that our universe does not fit the "Static Newtonian" model. Sir Isaac Newton came up with a model for the universe whi...
AJ
Answered by Alexander J. • Physics tutor
6252 Views

What is a potential divider?

A potential divider is essentially a series circuit. The characteristics of a series circuit is such that voltage from the source (a battery for example) gets split across the resistors according to the valu...
MK
Answered by Mehrin K. • Physics tutor
6294 Views

How do control rods work in a nuclear fission reactor?

In Nuclear Fission, neutrons collide with radioactive atoms (eg Uranium-235) in order to split the atom into two smaller atoms and releasing energy. The more neutrons there are the faster the reaction so to ...
JH
Answered by Jordan H. • Physics tutor
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