Calculate the electric field at a point outside the surface
An insulating solid sphere of radius a has a uniform volume charge density and carries a total positive charge Q. Calculate the electric field at a) a point outside the surface, and b) at a point inside the sphere.
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Two states of water (H2O) are given as: Initial state: 25C, 100 kPa Final state: ideal gas at 1800C Determine the change in specific enthalpy and specific internal energy.
Pure benzene has a normal freezing point of 5.50 degrees C. A solution containing 11.4 grams of a molecuar substance dissolved in 150.0 grams of benzene (kf = 5.12 degrees c/m) has a freezing point of 1.20 degrees celsius.
Two infinitely long, straight wires are parallel and separated by a distance of 1.30 meters. They carry currents in the same direction. Wire 1 carries four times the current that wire 2 carries.
A sample of n = 16 individuals is selected from a normal population with a mean of µ = 48 and a standard deviation of s = 12. After receiving a treatment, the sample mean is found to be M = 52. Compute Cohen's d to evaluate the size
Explain how the power of a hypothesis test is influenced by each of the following. Assume that all other factors are held constant. Increasing the alpha level from .01 to .05. Changing from a one-tailed test to a two-tailed test.
What is the difference between Discrete random variable and continuous random variable?
A 15KW electric motor provides power for an elevator of a building. What is the minimum time needed for the elevator to rise 30 meters to the sixth floor when its total mass, when loaded, is 900Kg?
Suppose you hear an "old-timer" say, "Why, in my day, kids were much more respectful and didn't cause as much trouble as they do nowadays!" Formulate a hypothesis related to this statement that you could test. How would you test it?
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