What is the heat generated
A 150mm diameter shaft supporting a load of 10kN has a speed of 1500rpm. The shaft runs in a bearing Whose length is 1.5 times the shaft diameter. The coefficient of friction is 0.02. What is the Heat Generated?
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You have been asked to help your classmate, who was just offered a professional volleyball contract, with selecting her choice of contract offers.
The tension T is increased in such a way that the string is pulled through the hole at a constant rate until r = 0.5 m. Determine the value of T as a function of r while this is taking place.
1. One strategy in a snowball fight is to throw a snowball at a high angle over level ground. While your opponent is watching the first one, a second snowball is thrown at a low angle timed to arrive before or at the same time as the first one.
The shaft runs in a bearing Whose length is 1.5 times the shaft diameter. The coefficient of friction is 0.02. What is the Heat Generated?
An infinitely wide and an infinitely thin insulating plane has a uniform surface charge density of 3.5 nC/m^2. What are the strength and direction of the electric field at:
Find the 90% confidence interval for the population standard deviation if a sample of 16 had a standard deviation of 2.4. Find the 99% confidence interval for the population standard deviation if a sample of 27 had a standard deviation of 25.4.
Vapor is withdrawn from the top of the tank until the temperature in 10C. Assumning that only vapor(i.e. no liquid) leaves and that the process is adiabatic, calculate the mass of ammonia that is withdrawn.
What value would you expect to find for the mean of all these sample means? (Give your answer correct to nearest whole number.) What value would you expect to find for the standard deviation of all these sample means?
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