* 48, (I) Two earthquake waves of the same frequency travel
through the same portion of the Earth, but one is carrying
twice the energy. What is the ratio of the amplitudes of
the two waves?

The ratio of the amplitudes of  the two waves is .

Explanation:

The intensity of the spherical wave has the formula as:

Here, P is power and r is the radius of sphere.

Power is equivalent to the ratio of energy and time and intensity is directly proportional to energy. So,

                                                    =

Here,   and are the intensities of the two waves,   and are the amplitudes of the two waves

The total energy of the sinusoidal wave can be calculated by using the formula,

                                                  =

Here, k is wave number and A is the amplitude of wave.

From the above equation, energy is directly proportional to the squared amplitude,

                                                    =

Since the energy of one earth quake is twice the energy of other earth quake. Thus,

                                                  = 2

Rearrange the equation for ,    

                                                  =

The ratio of amplitudes is .

i believe the answer is a hope it and is correct

no. bullets are macro objects. wave nature is for light waves, extremely tiny particles. if a light particle was the size of your finger, the bullet would be the size of the universe. so basically, that huge difference in size makes the wave nature of matter insignificant.