Calculate exit air flow density and exit air mass flow rate
Air is blowing out of a fan with exit diameter d = 0.5 m with uniform velocity V= 100 m/s, static pressure p = 100,000 Pa, and static temp T = 20 C. Calculate the exit air flow density and exit air mass flow rate.
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A potential difference of V=24.0 V is applied across two capacitors in parallel, with capacitances 36.0 nF and 48.0 nF. What is the magnitude of the charge on one of the plates of the 36.0-nF capacitor?
What is the velocity and the depth of the object at time 3 s after it was launched. show steps and diagram (free body).
Estimate the amount of free fall time that would be possible that would still allow full deployment of the parachute and a safe landing.
Halley's comet has a period of approximately 76 years, and it moves in an elliptical orbit in which its distance from the Sun at closest approach is a small fraction of its maximum distance. Estimate the comet's maximum distance from the Sun in as
The top of a swimming pool is at ground level. If the pool is 2.28 m deep, how far below ground level does the bottom of the pool appear to be located for the following conditions?
A subway train is being designed for operation between two stations A and B, which are 2 km apart. Determine the minimum time for the train to make the trip from A to B.
A contact lens is made of plastic with an index of refraction of 1.58. The lens has an outer radius of curvature of +2.03 cm and an inner radius of curvature of +2.42 cm. What is the focal length of the lens?
Nineteen customers have placed service calls to obtain AT&T U-Verse. The maintenance technician can only service ten of them before noon. The customers care about the order in which they are serviced, so each possible arrangement of service ca
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