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First, we need to recognise which equation to use. From the Physics Equation Sheet, we can see that the correct equation here is that dQ=mcdT, where dQ is the Energy transfer. Using this equation...

Vertcal component of velocity: 20Sin(30)

Rearrange suvat equation for t in terms of u, a, s

t is the time in the air and is what we want, u is 20sin(30), a is -9.81 (negative since gravity p...

As Q₃ remains stationary, it is clear that it is not accelerating. Thus we can deduce from Newton's second law that there is no resultant force acting upon the charge. However there are still e...

To solve that we get given that a wave generator produces three waves per second at a wavelenght of 1.2 meters.

To tackle this you can use the formula v= f * lambda (speed = frequency * wavelength)...

This can be solved in 2 main sections: the first to find the acceleration of the car, and then the second to find how long it spends accelerating. To find the acceleration, Newton's 2nd Law (F=ma) can be ...