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How are the momentum and kinetic energy of an object related?

The momentum of an object is given by p = m v, where p = momentum, m = mass of object and v = velocity.The kinetic energy of an object is given by KE = 1/2 * m v 2 where KE is the kinetic energy. Therefore t...
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Answered by Ketan C. • Physics tutor
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Solve x^2 + 2x = 48 for all values of x

First we need to rearrange so that it's all on one side of the equals sign:x 2 + 2x - 48 = 0 Now we have to find what will sum to make the coefficient of x (2) and multiplies together to get -48. So, the fac...
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Answered by Ketan C. • Maths tutor
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What is the Van der Waals force and where would you see its effects?

The Van der Waals force is the weakest of all the intermolecular forces. This interaction occurs between every molecule, over very small distances, and becomes weaker the further away the two molecules are f...
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Answered by Ketan C. • Chemistry tutor
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What is the ideal gas equation and what relationships can we derive from it?

The ideal gas equation is given by pV = nRT, where p is pressure of the gas, V = volume, n = molar amount, T = temperature (in Kelvin!) and R is the gas constant which is given by 8.31 J / (K*mol). From this...
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Answered by Ketan C. • Chemistry tutor
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How to calculate the number of protons, neutrons and electrons in an atom of chlorine?

Protons have a +1 charge and electrons have a -1 charge. The overall charge on an atom is 0, therefore there must be an equal number of protons and electrons in an atom so that the charges cancel out. So in ...
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Answered by Abbey T. • Chemistry tutor
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