Compute linear speed of tips of blades
The ceiling fan with 20-inch blades rotates at 40 revolutions/minute. Determine angular speed of fan, in rad/min, and compute linear speed of tips of blades in in/min.
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Determine the probability that she had this outcome if the two variables, heart worm and parvo, are independent?
The Toylot Company makes electric train with motor that it claims will draw average of only 0.8 ampere (A) under normal load. A sample of nine motors was tested and it was found that sample mean current was 1.4 A with sample standard deviation of
The molar volume of liquid water is 0.019x10-3m3/mol, the molar enthalpy of vaporization 40.69KJ/mol, and the molar volume of steam is 30.199x10-3m3/mol, all at 100oC and 1 atm = 1.01325 bar.
What will be the equilibrium mole fraction of H2O if a mixture of 1 mol of Co and 5 mol of H2O is passed over a catalyst at this temperature and a pressure of 2 bars?
Even though the population standard deviation is unknown, investigator employs z rather than the more appropriate t to test a hypothesis at the .01 level of significance. In this condition the true level of significance of this test is:
ΔH= -368 kJ/mol rxn. Determine the numbers of grams of sodium hydroxide can be made if the 255 kJ of heat is released?
Two liquids have vapor pressures. The compound A has 0.690 atm and the compound B has 0.350 atm at the room temperature. Suppose that a solution is prepared that is 0.33 mole fraction in the more volatile component.
A 12.2-g sample of NH4NO3 is dropped into a constant pressure calorimeter having 175 g of water at 23.5 degrees C. Discuss what temperature will the water reach, assuming that the calorimeter does not gain or lose any heat? Where the delta H
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