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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.
The gauge pressure at the bottom of a reservoir is 7.0 times what it is at a depth of 1.3 m. How deep is the reservoir
A point mass m starts from rest and slides down the surface of a frictionless solid sphere of radius r. Find the angle at which the mass flies off the sphere
The two metal objects in Fig. 25-25 have net charges of +70pC and-70pC, which result in a 20V potential difference between them.(a)What is the capacitance of the system? (b) If the charges arechanged to +200pC and -200pC, what does the capacitance..
Particle A of charge 5.00x10-4 C is at the origin, particle B of charge -5.00x10-4 C is at (3.00 m, 0) and particle C of charge 3.00x10-4 C is at (0, 2.00 m).
One generator uses a magnetic field of 0.15 T and has a coil area per turn of 0.045 m2. What magnetic field should be used in the second generator
An air-traffic controller observes two aircraft on his radar screen. The first is at altitude 1200 m, horizontal distance 18.0 km and 21.0° south of west. The second aircraft is at altitude 900 m, horizontal distance 19.8 km and 23.0° south of west.
The work function of a particular substance is 4.53 × 10-19 Joule. Find the photoelectric cutoff wavelength for this material
An 805-kg race car can drive around an unbanked turn at a maximum speed of 54 m/s without slipping. What would be the maximum speed if no downforce acted on the car
A 451-? resistor and a 257-mH inductor are connected in series with an ac generator with an rms voltage of 20.0 V and a frequency of 60.0 Hz
a partice moves along the path y=-0.090x^6(-7)meters with a constant speed of 4 m/s. assume dx/dt>_0. Determine the cartisian components of velocity and acceleration at x= - 2m
A nozzle with a radius of 0.250 cm is attached to a garden hose with a radius of 0.950 cm, Calculate the maximum height to which water could be squirted if it emerges from the nozzle
Suppose that a 1.00 cm3 box in the shape of a cube is perfectly evacuated, except for a single particle of mass 1.21 10-3 g. Find the average pressure on the other walls
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