What is the atomic number
An atom is ionized so that it has only one electron. When the electron drops from the n = 4 shell to the n = 1 shell, an X-ray of wavelength 243.14 pm is emitted. What is the atomic number?
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Nitrogen gas enters an adiabatic nozzle with negligible velocity, 300 kPa, 800 K and exits at 200 m/s. For a nozzle isentropic efficiency of 80%, calculate the exit temperature (K).
A sound level meter located 8.92m from the explosion records a level of 110.dB during a time interval equal to the duration of the explosion. How long did the explosion last?
At the .025 level, has Holdlonger increased the shelf life of the chlorine? Estimate the p-value. State the null hypothesis and the alternate hypothesis. State the decision rule for .025 significance level. Compute the value of the test statistic.
An axial flow compressor stage has blade root,mean and tip velocities of 150,200 and 250 m/s. The stage is to be designed for a stagnation temperature rise of 20K and axial velocity of 150 m/s, both constant from root to tip.
The National Safety Council reported that 52 percent of American turnpike drivers are men. A sample of 300 cars traveling southbound on the New Jersey Turnpike yesterday revealed that 170 were driven by men. At the .01 significance level, can we c
The manufacturer of the X-15 steel-belted radial truck tire claims that the mean mileage the tire can be driven before the tread wears out is 60,000 miles. The population standard deviation of the mileage is 5,000 miles. Crosset Truck Company bou
Given that one solar mass is 2.0×1030 kg, what would be the radius of a Black Hole containing this amount of mass? (Just an interesting note: the average radius of the orbit of Mercury from the Sun is about 5.8×1010 m.)
Calculate the maximum mass flow rate at the inlet condition that this compressor can handle without violating the second law of thermodynamics.
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Explain the risks of not reporting the results of your forensic assessment findings accurately. Provide specific examples.
Read "The Effect of Tart Cherry Juice Compared to a Sports Drink and Cycling Exercise Performance, Substrate Metabolism, and Recovery" from University Library
Identify and analyze one resource that provides information regarding services for dealing with and treating substance use and abuse in youth or adolescence.
Discuss how culture may influence one's perceptions. Provide an example of how culture may impact the interaction between a patient/client
Write an essay describing your achievement of a goal and your friends or family member's achievement of a goal using motivational theory
Pets can have a therapeutic effect on people; they seem to have the power to calm the anxious and cheer the depressed. Give three reasons
Review Chapter 12 and consider how your culture has impacted your worldview and personality. Pay particular attention to the section on characteristics of Cult