Lasers can be constructed that produce an extremely high intensity electromagnetic wave for a brief time—called pulsed lasers. they are used to ignite nuclear fusion, for example. such a laser may produce an electromagnetic wave with a maximum electric field strength of 1.52\times 10^{11}~\text{v/m}1.52×10 11 v/m for a time of 1.00 ns. what energy does it deliver on a 1.00~\mathrm{mm^2}1.00 mm 2 area?

The slope of a velocity time graph over any interval of time gives the during that interval

Based on the concept of the wave-like nature of light, huygens' theory of light postulates that the more light was "bent" by a substance the slower it would move while traversing across that substance. a) deflection b) interference c) refraction d) resonance

An object with initial temperature 130 ∘ f is submerged in large tank of water whose temperature is 50 ∘ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = − 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )