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It is important to remember that there are four main concepts to keep in mind while thinking about the parachutist. To remember them, it might be helpful to use the acronym GADE: Gravity, Acceleration, Dr...

Firstly, I would start by drawing a diagram of the system on the whiteboard, showing the object attached to the string, and the string at a fixed point. I would show using arrows that the object was rotat...

In modern life there is a large demand for energy as it is needed for everything from transport to heating. Whilst there are many renewable options for energy many of these run into issues in terms of the...

Using the formula for gravitational attraction between the Moon/Earth and a test mass, m. We determine F_E = (G*M_E m)/(r_E² ), F_M = (GM_M<...

A wave where the oscillations are parallel to the direction of energy transfer causing areas of compression and rarefaction