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velocity (v) = frequency of the wave (f) x wavelength of wave (in metres) (λ)
50cm in metres: 50/100 = 0.5m
Therefore (v) = 680 x 0.5= 340 (m/s)

By using the equation: Kinetic Energy = (1/2)mv^2, using m as 1000kg and v as 20ms^-1.We can calculate this value as follows: KE = (1/2)(1000)(20)^2This is equal to 2.0*10^5J (solved using a scientific ca...

First of all, it is important to remember that an object's acceleration is the rate of change of its velocity, not its speed. Velocity is a vector quantity and so must have a direction as well as a magnit...

The glass screen is a brittle material so breaks with little plastic deformation.The aluminium material however shows elastic behavior and will, when the force is removed return to the original shape. Thi...

Acceleration (A)= Angular Velocity² (w²)Displacement (x)Angular Displacement= 2piFrequency (f)Gradient= A/x = w² = [2pi*f]²Rearrange the equation to g...