Apiston-cylinder assembly contains propane, initially at 27°c, 1 bar, and a volume of 0.2 m^3. the propane undergoes a process to a final pressure of 4 bar, during which the pressure-volume relationship is pv(1.1) =constant. for the propane, evaluate the work and heat transfer, each in kj. kinetic and potential energy effects can be ignored.
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Physics, 21.06.2019 18:10
An insurance company wants to know if the average speed at which men drive cars is higher than that of women drivers. the company took a random sample of 27 cars driven by men on a highway and found the mean speed to be 72 miles per hour with a standard deviation of 2.2 miles per hour. another sample of 18 cars driven by women on the same highway gave a mean speed of 68 miles per hour with a standard deviation of 2.5 miles per hour. assume that the speeds at which all men and all women drive cars on this highway are both approximately normally distributed with unknown and unequal population standard deviations.
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Physics, 22.06.2019 15:00
Sodium chloride, nacl, is formed when a sodium atom transfers its electron to a chlorine atom. the difference in charge between the two atoms creates a(n) attraction that bonds them together.
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Physics, 22.06.2019 15:30
Charge is distributed along the entire x-axis with uniform density λ. how much work does the electric field of this charge distribution do on an electron that moves along the y-axis from y = a to y = b? (use the following as necessary: a, b, ε0, λ, and q for the charge on an electron.)
Answers: 3
Apiston-cylinder assembly contains propane, initially at 27°c, 1 bar, and a volume of 0.2 m^3. the p...
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