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The energy contained in a photon is given by the formula E = hf, where h is the Planck constant and f is the frequency of the photon. Since h = 4.110−15 eVs, f = E/h = 1.0103<...
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...
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