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Air flows from a reservoir maintained at 400 kPa absolute and 20-C out a nozzle with a 10-cm-diameter throat and a 20-cm-diameter exit into a receiver. Estimate the receiver pressure needed to locate a shock wave at a diameter of 16 cm. Also, find the mass flux and the velocity just before the shock.
A 0.145- kg baseball traveling 34.50 m/s is stopped in 0.183 s by a catcher's mitt. What is the average force on the catcher's mitt
An oscillating spring and mass system performing SHM, has a maximumacceleration of a1. If the mass is increased by 50%, and the amplitude remains constant, what is the new maximum acceleration?
Gold, which has a density of 19.32 g/cm3, is the most ductile metal and can be pressed into a thin leaf or drawn out into a long fiber. (a) If a sample of gold by a mass of 3.245 g, is pressed into a leaf of 3.989 m thickness, what is the area of the..
A gas is allowed to expand at a constant pressure of 10^7 Pa, its volume increasing by 2m^3. What is the net work done by the gas during the entire process
Water drips from a shower head (the sprayer at the top of the shower) and falls onto the floor2.2m below. The droplets are falling at regular intervals (equal amounts of time between drops), with the first drop hitting the floor at the instant that t..
1.a bicycle tire is filled to a pressure of 4.42 atm 65 psi at a temperature of 120c. if the temperature of the tire
ferromagnetism is caused by:
Consider the following circuit with emf = 12 V, C = 2 microF, L = 6 microH, and R = 6ohms. What is the value of the energy stored in the inductor
In 1980, over San Francisco Bay, a large yo-yo was released from a crane. What was the magnitude of the acceleration of the yo-yo during (a) its fall
A record is dropped vertically onto a freely rotating (undriven) turn table. what percent of the initial kinetic energy is lost
A solid block of mass m2 = 0.5 , at rest on a horizontal frictionless surface, is linked to a relaxed spring (with spring constant k = 150 whose other end is fixed. Another solid block of mass m1 = 2.4 and speed v1 = 2.2 collides with the 0.50 blo..
Three flat layers and transparent material are stacked upon one another. at what angle of incidence will a ray of light traverse the three layers in a single straight line
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