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How many cubic feet of free air are required to raise the receiver from 0 gauge pressure to a final pressure of 80 PSIG. Assume the receiver is 42inch in diameter and 72inch in length. Since receiver tanks are rated in gallons, what size would this tank be placarded.
34g of copper pellets are removed from a 300 degrees celcius oven and immediately dropped into 70mL of water at 22 degrees celcius in an insulated cup. What will the new water temperature be
Two large spheres with the same diameter are mounted on vertical axles in a science museum. Both are coated in a thin layer of white plastic, and although they appear identical, one is actually a solid wooden sphere, while the other is a hollow me..
The rms value of the electric field in an electromagnetic wave is Erms = 480 V/m. Find the average energy density
Two new particles, which have identical positive charge q3, are placed the same 0.0434 meters apart, and the force between them is measured to be the same as that between the original particles, What is q3
Hakeem throws an 8.50 g ball straight down from a height of 2.0 m. The ball strikes the floor at the speed of 7.5 m/s. What was the initial speed of the ball? Suppose that air resistance is negligible.
Consider adding four phasors of equal amplitude due to four point sources in a line. What orientation gives sum of zero
To which, according to the rotational analog of Newton's second law, is the angular acceleration experienced by an object directly proportional?
A brass wire is to withstand a tensile force of 350N without breaking. What minimum diameter (in mm) must the wire have
An acoustic signal is composed of the first three harmonics of a wave of fundamental frequency 470 Hz. If these harmonics are explained, in order, by cosine waves with amplitudes of 0.710, 0.170, and 0.790, what is the total amplitude of the signal a..
A concave mirror in an amusement park has a radius of curvature of 4.0 m. A child stands in front of the mirror so that she appears 2.5 times taller than her actual height. how far is she standing from the mirror
a carousel is free to rotate about its center onfrictionless bearings the carousel has an angular speed of 3.14rad/s , a moment of inertia of 125 kg/m^2, what is the resulting angular speed of the carousel and the person
Two identical resistors are connected in parallel across a 23Vbattery, which supplies them with a total power of 8.7W. While thebattery is still connected, one of the resistors is heated so thatits resistance doubles. The resistance of the other r..
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