What is the length of the box
an electron is confined to a one dimensional box of length l it falls from the second energy level to the ground state and releases a photon with a wavelength of 322 nm. what is the length of the box.
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A 25.0-mL sample of 1.00 M NH3 is titrated with 0.15 M HCl. What is the pH of the solution after 15.00 mL of acid have been added to the ammonia solution? Kb = 1.8 × 10¯5.
Two antennas at the same location on earth receive a signal from a satellite directly overhead at altitude h = 36.0 km. Both antennas have been optimized for this purpose and both are observed to receive the signal with equal strength.
Suppose you have a new thermometer called the X thermometer. On the X scale the boiling point of water is 130 degrees X and the boiling point of water is 10 degrees X. At what temperatures will the reading be on the Fahrenheit and the X thermomete
The mechanical errors in the joint and the input/output links can be described by a normal distribution with its mean at any given addressable point, and a standard deviation of 0.25?.
How do you solve for the stresses acting on a perimeter point centered on the y axis, the force is applied parallel to the y axis 200 mm in the -x axis direction and another force acting in the -z axis direction at the same point.
A sample of hydrogen gas was collected over water at 36°C and 855 mm Hg. The volume of the container was 6.50 L.
If iodine gas reacts with excess fluorine gas to produce 7.575g of iodine pentafluoride gas, what was the pressure of the iodine gas before reacting if it was kept in a 1.5L flask at 298 k.
Dinitrogen pentoxide, N2O5, decomposes in the gas phase to form nitrogen dioxide, NO2, and oxygen gas, O2. The reaction is first order in dinitrogen pentoxide and has a half-life of 2.81 hours at 25 C. If a 1.5-liter reaction vessel initially cont
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