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A pitot-static tube measures the total pressure pT and the local pressure p in a uniform flow in a 4-cm- diameter water pipe. Calculate the flow rate if:
(a) pT ¼ 1500 mm of mercury and p ¼ 150 kPa
(b) pT ¼ 250 kPa and p ¼ 800 mm of mercury
(c) pT ¼ 900 mm of mercury and p ¼ 110 kPa
(d) pT ¼ 10 in. of water and p ¼ 30 lb=ft2
An electric grinding wheel of radius 0.50 m is initially at rest. When the motor is turned on at time t1=0s, What is the angular acceleration of the wheel during the first 2.1s of its motion
One end of a cord is fixed and a small 0.460 kg object is attached to the other end, where it swings in a section of a vertical circle of radius 2.50 m, find the tangential and radial components of acceleration
A radioactive nuclide of atomic number Z emits an alpha particle and the daughter nucleus then emits a beta particle. What is the atomic number of resulting nuclide
A uniform solid sphere rolls down an incline. (a) What must bethe incline angle if the linear acceleration of the center of the sphere is to have a magnitude of 0.10g?
An airplane is traveling 835 km/h in a direction 41.5 west of north. How far north and how far west has the plane traveled
An athlete starts at point A and runs at a constant speed of 6m/s around a round track 100 m in diameter, what is x component of this runner's average velocity between points A and B.
A ray of light, traveling in air, strikes the surface of mineral oil at an angle of 23.4? with the normal to the surface. what is the angle of refraction
The figure below shows three charges at the corners of a rectangle of length x = 0.35 m and height y = 0.22 m. How much work must be done to move the three charges infinitely far from one another?
A string that is fixed at both ends has a length of 2.49 m. When the string vibrates at a frequency of 80.8 Hz, What is the fundamental frequency of the string
A straight horizontal wire carries a current of 6.50 μA. An electron is moving above the wire the direction parallel to it and in the same direction as the conventional current in the wire.
An 80 kg spacewalking astronaut pushes off a 640 kg satellite, exerting the 100N force for the 0.50 s it takes him to straighten his arms.
Two point masses m1 = 2 kg and m2 = 1 kg are connected by a thin massless rod of length L = 2 m, What is the kinetic energy of this rotation
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