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Modern vacuum pumps make it easy to attain pressures of the order of 10?13atm in the laboratory.At a pressure of 8.35×10?14atm and an ordinary temperature of 291.0K , how many molecules are pres
Happy Planet drinks price change as the quantity sold changes. In particular p=10-0.005x. The total cost to produce the drinks are $2.50 per drink. Their production factory costs $1000 per month. W
A large cylindrical tank contains 0.790m3 of nitrogen gas at 20.0?C and 7850Pa (absolute pressure). The tank has a tight-fitting piston that allows the volume to be changed.What will be the pressure i
Define the composition of solid waste. How has the consumption of plastics and paper products changed in the last 30 years? State possible reasons for such changes.
Calculate the rotational constant B for H2(g)and D2(g)in unite of frequency. Rationalize the trend in rotational constant for these two molecule ,given the differ only in atomic mass.
Three charged particles are fixed to an x axis: Particle 1 of charge q1 = 2.1e-8 C is at position x=20 cm and particle 2 of charge q2 = 2.00q1 is at position x = 30 cm, particle 3 of charge q3 = -4.00
Express the image distance si of a convex mirror in terms of the object distance so and the radius of curvature of the mirror R. Keep in mind that the focal length is considered negative for a convex
Estimate the thickness of each absorber required to attenuate a 100 keV photon beam by a 99.99 %.Which absorber material would be ideal for building a wall to shield you from the photons? Why?
A diagnostic tube has a target with a length of 10 mm. The electrons are focused along a strip of the anode 2.5 mm wide.At what angle (in degrees) should this strip be placed to yield an apparent
A 45-year-old grocery sales clerk has been suffering from bouts of severe pain in his left flank region. He blamed it on prolonged standing for 8 hours straight while working. He was taking over-the
Identify something you would like to improve such as a daily process or procedure, a personal habit or routine. This topic will become your Improvement Project / Research Paper for this course.
Solve the congruence: 2x = 5 (mod11). Find f(4) if f is defined recursively by: f(0) = f(1) = 1 and for n > 1.
A sea diver's suit has a thickness of 5 mm and is made of a material with thermal conductivity of 0.05 W/mK. If the diver's skin is 33°C and the water temperature is 5°C and the heat tran
What is the physical interpretation of compressibility factor, Z ? At what general pressure does the compressibility factor converge for all temperatures?
Show that the angular magnification m(theta) is also given by the equation: m(theta) = -f(objective) / f(eyepiece)
The sample as first heated to drive of all the oxygen , yielding a resideue of 0.522g. this residue was terated with AgNo3 to give 1.003 g of solid AgCl. Determine the empirical formula of the compu
Describe polymers, and how they are formed. What are the benefits of polymers? provide an example of a naturally occurring polymer and a manmade polymer and the properties of each.
An upright object is placed a distance in front of a converging lens equal to twice the focal length (f1) of the lens. On the other side of the lens is a converging mirror of focal length f2 separated
In an eye that is farsighted, the eye focuses parallel rays so that the image would form behind the retina. In an eye that is nearsighted, the image is formed in front of the retina.How would you desi
Two 1.9kg masses are 1.5m apart (center to center) on a frictionless table. Each has + 9.3?C of charge.What is the magnitude of the electric force on one of the masses?What is the initial acceleration
Some of the first "microscopes" were really single-lens magnifying glasses made by Leeuwenhoek. These devices had magnifications as high as 200. Assume that these were made from a glass (n = 1.5) lens
Five kilograms of liquid carbon tetrachloride undergo a mechanically reversible, isobaric change of state at 1 bar during which the temperature change from 0 C to 20 C. Determine the change.
What is a Lithium Ion Battery? Why is it called a Lithium Ion Battery? How is a lithium ion battery different from a regular lithium battery?
A 2,500-ft long pipeline is required to carry 21.5 cfs (ft3/sec) of water to an industrial client. The limiting pressure drop mandated by the client is 40 psi (lb/in.2). Determine the pipe size requir
A parallel-plate capacitor in air has a plate separation of 1.43 cm and a plate area of 25.0 cm2. The plates are charged to a potential difference of 255 V and disconnected from th