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First, we change the units of the datas:

v=120 km/h = 120 km/h x 1 h / 3600 s x 1000 m /1 km = 33.333 m / s

d=15 mm = 15x10^-3 m

Using the formula of the angular velocity: w...

distance=speed*time

distance=300*5

=1500

1500/2 (as signal travels back and forth)=750m

KE = 0.5mv² [1] v = 3x10⁸ * 0.95 = 2.85x10⁸ [1] KE = 0.5 * 1.67x10^-27 * (2.85x10⁸)²  [1] KE = 6.782 x10^-11 J [1]

An elastic collision is a collision where objects will bounce after they hit each other. For example balls in a pool game bounce after heating each other. For an elastic collision, Mechanical Energy Kinet...

1.) using the wave speed formula for an electromagnetic wave, c=fλ, (c=3.00x10^8 m/s)

f=c/λ where c=the speed of an electromagnetic wave.

f=(3.00x10^8)/(560x10^-9)= 5.36x10^14 Hz