EXERCISE 1.2 In physics, energy E carries dimensions of mass times length squared divided by time squared. Usedimensional analysis to derive a relationship for energy in terms of mass mand speed v, up to a constant of proportionality.Set the speed equal to c, the speed of light, and the constant of proportionality equal to 1 to get the most famous equationin physics. (Note, however, that the first relationship is associated with energy of motion, and the second with energy ofmass. See Chapter 26.)ANSWER E= kmv?E = mc? when k= 1 and v= c.

Energy: kg m²s⁻²Mass = kgvelocity = m/sE = kmv2 putting k = 1, v = c as provided in question.

Answered: EXERCISE 1.2 In physics, energy E…

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