Mathematically speaking, the energy of a wave is directionally proportional to the square of the amplitude of the wave calculate the energy of a wave that has an amplitude of 4 units a)1.0 b)2.0 c)4.0 d)160

when the velocity of a mass on a spring is zero, the acceleration is at a maximum .

the simple machine has three main features. they are:

fulcrum is the center point or pivot point of the machine. effort is input force/ applied force. load is external force/ output.

the keisha 's machine labels are

x : load

y: fulcrum

z: lever

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