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With these sort of questions involving components, I would always advise drawing a diagram of the problem so that you're clear of the situation!In this case we have an object that is travelling at a speed...

Newton's law of gravitation is: F_G=(GMm)/(r²).First of all, it's a good idea to draw a diagram of the planet and star, labelling the directions of the centripetal force and and the p...

Newton's law of gravitation is;
F = GMm/(r²)
Where G is the Universal Gravitational constant, M is the mass of Earth, m is the mass of the object and r is the radius of Earth (no valu...

This question is best solved using conservation of energy, since it is stated that friction and drag (non-conservative forces) can be ignored.When the ball is released at the top of the slope, its initial...

First, let's define what the ionisation energy is. The ionisation energy is the minimum amount of energy required to remove an electron from the ground state of an atom. That means, if we give an...