2.10 You may have seen children play-ing in the summer with large-capacity water "soakers" shownschematically in the figure to theright. The air compartment ofvolume 750 cm³ is first manuallypumped to P = 2.5 bar (absolute);its temperature is initially 30 °C.air tankv Dished high bottrigger3waterpumpWhen the trigger is pressed, the compressed air expels the water through a2 mm diameter tube at a velocity of 8 m/s. Estimate the temperature andpressure in the air reservoir after 5s of operation. Air can be considered anideal gas with Cy=5R/2. You may neglect the presence of water in the vaporphase. State any additional assumptions.

In the given case when there occurs a discharge of water after 5 s, then the volume of air will…

Answered: 2.10 You may have seen children play-…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Solve the following problem. Show all formulas, work, and units. A 200g of an unknown metal at 15 °C is placed in water. The unknown metal gains 500 cal and its final temperature is 40 °C. What is the specific heat capacity of the unknown metal?
Example problem 2.1 1.00 mol of an ideal gas (the system) is confined in a piston and cylinder assembly similar to that shown in figure on right. The initial temperature is 300. K, and the initial pressure is 0.200 bar. The surroundings are a water bath at 300. K. a. Write an expression in terms of the system variables for the work in a reversible process in which the volume of the gas is doubled. b. Can you obtain a numerical value for w? Assume that the reversible process is isothermal. Calculate w by evaluating the integral in part (a). Mechanical stops Mass Piston P,V
Mastering Physics Assignmer session.masteringphysics.com/myct/itemView?assignmentProblemlD=D145247738
The specific heat of liquid water is 4190 J/kg. K. ▼ Part A What is the molar specific heat of liquid water in J/mol. K? Give your answer as a multiple of R, rounded to the nearest half integer. Express your answer as a multiple of R to the nearest half integer. Cmol = 9 R Submit Correct Part B Previous Answers Equal moles of liquid water and helium gas are heated at constant pressure from the same initial temperature to the same final temperature. By what factor is the entropy increase of the water larger than the entropy increase of the helium? Express your answer to two significant figures. AS water ASHe Submit 17| ΑΣΦ Request Answer ?
Enter your answer in the provided box. Copper can be drawn into thin wires. How many meters of 34-gauge wire (diameter = 6.304 x 10 in) can be produced from the copper in 9.80 Ib of covellite, an ore of copper that is 66.0% copper by mass? Ge (Hint: Treat the wire as a cylinder: V of cylinder- ar h; d of copper 8.95 g/cm'). m
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During a one-year time period, how many gallons of water would the average household save by using an efficiency washer vs a regular washer? Is this one-year savings more or less than the amount of water an average person drinks in a lifetime? Explain and show your assumptions, calculations, and conversions.Consider it to be 2 separate problems:1. How much water is saved in a one-year period when using an efficiency washer vs regular washer - answer based on your assumptions and calculations for full credit2. How much water does an average person drink in a lifetime – arrive at this answer based on your assumptions and calculations3. Compare the answers to those 2 questions to arrive at your conclusionBelow are 2 pieces of information that you might find helpful there are 128 oz in a gallonthere are 365 days in a year and also 52 weeks in a year
Learning Goal: To practice Problem-Solving Strategy 18.1 Ideal Gases. Lethal concentrations of gases are often expressed in terms of volume fraction, that is, the fraction of available space occupied by the hazardous gas. A hazardous-materials worker wants to calculate the volume fraction of chlorine gas in a storage room after all of the contents of a 0.900-L cylinder of chlorine gas at 129 atm is accidentally released in the room. The environment in the storage room is kept at a constant pressure of 1.00 atm and a constant temperature of 20.0 °C. The room's dimensions are 8.00m x 8.00m × 2.90m. What is the volume fraction of chlorine gas present in the storage room? Submit Previous Answers Correct To find the volume fraction of chlorine gas, you need to know V₂, the volume the chlorine gas would occupy at 1.00 atm and 20 °C. Note that in reality, however, the chlorine gas would mix with air and fill the entire volume of the storage room. EXECUTE the solution as follows Part C What is…

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