Find the mass of air and the overall specific volume
A 5 m3 container is filled with 900 kg of granite (density 2400 kg/m3 ) and the rest of the volume is air with density 1.15 kg/m3. Find the mass of air and the overall (average) specific volume.
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On the moon the gravitational acceleration is approximately one-sixth that on the surface of the earth. A 5-kg mass is "weighed" with a beam balance on the surface on the moon.
The average length of life of a brand of light bulb is 2000 hours with a population standard deviation of 120. A sample of 100 light bulbs is to be taken. What is the probability of the sample mean being less than 2020 hours? P(xbar< 2020)
A positron (e+) in a thin wire can be considered as if in a 1- dimensional infinite potential well. Consider L = 0.005 mm length of the wire; (a) Determine the ground-state energy of a positron in such wire.
The other is moving upward at a constant velocity v2. If we consider the fluid Newtonian, solve for the velocity profile using our newlydefined Navier-Stokes Eqns.
A tank has two rooms separated by a membrane. Room A has 1 kg air and volume 0.5 m3, room B has 0.75 m3 air with density 0.8 kg/m3. The membrane is broken and the air comes to a uniform state. Find the final density of the air.
The plates of a Fabry-Perot interferometer have a reflection coefficient r = 0.99. Calculate the minimum resolving power R and the plate separation that will accomplish the resolution of the two components of the H-alpha doublet of the spectrum of
When you move up from the surface of the earth the gravitation is reduced as g = 9.807 - 3.32 × 10-6 z, with z as the elevation in meters. How many percent is the weight of an airplane reduced when it cruises at 11 000 m?.
The personnel department of a large corporation wants to estimate the family dental expenses of its employees to determine the feasibility of providing a dental insurance plan. A random sample of 12 employees reveals the following family dental ex
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Imagine you received another email from your friend who is now a month into their new job. They have some additional questions for you related to personality
Review the DSM-5TR and choose a personality disorder and review the following: Introduction to the personality disorder
Respond to at least two of your colleagues' posts. For each, describe one additional strength or limitation of the psychological autopsy
1. Explain the role of theory of mind in cultural learning among humans 2. Explain the costs and benefits of larger brains
1. Explain the advantage of the experimental method over questionnaire studies 2. Explain culture-level measures and individual-level measures
Explain the empirical evidence for a sensitive period for language acquisition. Explain the empirical evidence for a sensitive period for cultural acquisition
1. Explain the four different acculturation strategies 2. Explain how acculturation can lead to negative consequences