Explain the same energy in hydrogen atom
Explain why the 4s, 4p do, 4d, and 4f orbital have the same energy in hydrogen atom but they have different energies in many electron atoms?
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Let X and Y be two discrete random variables. Suppose X ? Y . Prove that E[X] ? E[Y ]. Note that you have not been given any information about the equations for the pmf's of X and Y.
Find out the concentrations of dissolved F- and La3+ are in equilibrium with solid LaF3 when the sensing element of a fluoride electrode is made of lanthanum trifluoride, LaF3.
Suppose the rope and pulley are mass-less and there is no friction in the pulley. If the masses are of 19.9 kg, compute their acceleration ‘a’ and the tension in the rope, T. Use g = 9.81 m/s^2
In a research study using a sample of 30 participants, the Pearson r correlation between X ans Y is +0.09 and is not statistically significant.
A 1.60 m diameter current loop having 210 turns of wire is set up so that the field at the center is precisely equivalent to the earth's field in magnitude however opposite in direction. Determine the current in the current loop?
The magnetic field at the center of 1.1 cm diameter loop is 2.6 mT. Determine the current in the loop? A long straight wire carries the similar current. Determine at what distance from the wire is the magnetic field 2.6 mT?
Calculate the volume of this gas sample when the absolute temperature is divided by four and the pressure is tripled if an isolated quantity of an ideal gas at 292.9 K has a volume of 18.77 L at a pressure of 1.28 atm.
Closed to pbox is to be assembled from the flat sheet of cardboard to help deliver fresh pizza to customers. He wishes to minimize surface area of box. Determine its dimensions of minimized box?
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