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First to note is how average speed, v, distance, d, and time, t, are related. This is given by v = d/t. The journey is split into two parts, but we are only asked for the total distance and average speed....

A reflected microwave will have a decreased wavelength, increased frequency and same speed when compared to an emitted microwave.

a)infrared b)the water boils causing it to turn to steam which passes through a turbine, turning an electrical generator which produces a current.

1. First, decompose the initial velocity (u) into x and y components using trigonometry. These are x= ucos(theta) and y=usin(theta)
2. Note that the x (or horizontal) component does not change bu...

Well actually, it does. Remember that the velocity is a vector and so is the force. Since F=ma, the acceleration due to a given force points in the same direction as the force itself. The magnetic force i...