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(This is accompanied with a whiteboard drawn diagram)."Well, the way I solved this problem when I was doing my A-levels was to make a spider diagram. For instance, the particle zoo (the name given to...

The problem can be easily solved using energy formulas. The only force that acts on the departing object is the gravitational force, which is conservative. Therefore the total energy is conserved on the t...

Geostationary orbits are only possible at one distance from Earth. This is because the very nature of the geostationary orbit requires the satellite to have the same time period as the rotational period o...

To calculate an object's weight, we have weight = mass * gravitational field strength (W = mg). From this, we see that an object with a greater mass (e.g. a hammer compared with a feather) has a greater w...

First draw a rough diagram of what the question describes. The student must work backwards. To answer, they must know the height of the projectile at the wall. To know the height of the projectile, they n...