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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...

Formally speaking, the definition required in an exam would be that the second law of thermodynamics states that the entropy of an isolated system never decreases. The second law was conceived with the co...

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]

A Sankey Diagram can be used to represent the energy usage and efficiency of anything. There are 3 main parts of  Sankey diagram, the start (left side), the arrow heads that peel off facing upwards or dow...