Calculate the frequency of electromagnetic radiation
Calculate the frequency of electromagnetic radiation emitted by the hydrogen atom in the electron transition from n =5 to n = 4.
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What is the chance that at least one number appears more than once? Please provide at least a few details as to how your arrive at your answer.
How many wayss are there to select an unordered group of eight numbers between 1 and 25 inclusive with repetition? In what what fraction of these ways is the sum of these numebrs even?
The blocks are allowed to move on a fixed block wedge of angle 46 degress. The coefficient of kinectic friction is 0.21 for both block. What is the acelleration of the two blocks?
Twenty five randomly selected students took the statistics final. If the sample mean was 85 and the standard deviation is 5 construct a 90% confidence interval for the mean score of all students. Note that the critical value for 90% confidence is
The distance between 2 telephone poles is 50.0 m. When a 1.00 kg bird lands on the telephone wire, midway between the poles, the wire sags 0.200 m. (a) Draw a free-body diagram of the bird. (b) How much tension does the bird produce in the wire? I
A flat plate of irregular shape has a mass of 4 slugs and a radius of gyration about the z axis of kg = 0.8ft. Calculate the resulting angular velocity of the plate.
A series LC circuit contains a 100 mH inductor, a 36.0 mF capacitor and a 12 V battery. The angular frequency of the electromagnetic oscillations in the circuit is:
What is the vapor pressure of a solution made by dissolving 28.5 grams of c3h8O3 in 125 grams of water at30 °C. the vapor pressure of pure water at that temparture is 31.8 mmHg.
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