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Physics, 21.06.2019 16:30
The mass of a muon is 207 times the electron mass; the average lifetime of muons at rest is 2.21 ΞΌs. in a certain experiment, muons moving through a laboratory are measured to have an average lifetime of 7.04 ΞΌs. for the moving muons, what are (a) Ξ² (b) k, and (c) p? the rest energy of the electron is 0.511 mev.
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Physics, 21.06.2019 20:20
When many atoms are split in a chain reaction, a large explosion occurs. this is an example of what type of energy conservation
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Physics, 22.06.2019 15:50
An object with initial temperature 130 β f is submerged in large tank of water whose temperature is 50 β f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = β 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) ! : )
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Physics, 22.06.2019 16:00
Suppose a soccer ball is kicked from the ground at an angle 20.0ΒΊ above the horizontal at 8.00 m/s. the y-velocity is determined to be 2.74 m/s. how long will the ball be in the air? assume the ball lands at the same height at which it was kicked.
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