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The Pitot tube on a supersonic aircraft (see Video V3.8) cruising at an altitude of 30,000 ft senses a stagnation pressure of 12 psia. If the atmosphere is considered standard, determine the airspeed and Mach number of the aircraft. A shock wave is present just upstream of the probe impact hole.
a current of 0.97a flows through a copper wire 0.44mm in diameter when it is connected to a potential difference of
A constant force of magnitude of 8.0 Newton is exerted for 4.0 s on a 16 kilogram object initially at rest. Obtain the change in speed of the object
A 4 millimeter tall object is 22.5 centimeter from the center of a silvered spherical glass Christmas tree ornament 5.95 centimeter in diameter. Evaluate what is the height of its image
a certain lcd projector contains a single thin lens. an object23.5mm high is to be projected so that its image fills a
Calculate the de Broglie wavelength for an alpha particle (He-e nucleus) with energy E = 4.2 GeV (which is emitted in the radioactive decay of U-238)
The center of mass between an uknown spacecraft and a probe of mass 10^5 kg is 1000 m from the probe. if the spacecraft is 1010 m from the probe, what is the mass of the spacecraft
With each cycle, a 2510-W engine extracts 2070 J from a thermal reservoir at 90 °C and expels 1340 J into a thermal reservoir at 20 °C. What is the work done for each cycle? What is the engine's efficiency?
a proton has an initial speed of 4.0 105 ms. a what potential difference is required to bring the proton to rest? b
The electric field at point P just outside the outer surface of a hollow spherical conductor of inner radius 10 cm and outer radius 29 cm has magnitude 457 N/C and is directed outward. What is the charge on the inner surface of the conductor
A 10-kg disk-shaped flywheel of radius 9.0 cmrotates with a rotational speed of 320 rad/s. Determine the rotational momentum of the flywheel.
A 30.0 kg solid uniform cube with 0.700 m sidesrests on a level surface. What is the minimum amount of work(Joules) necessary to put the cube into an unstable equilibrium position
a 0.50-kg mass hangs from a spring attached to the top of an elevator. the spring constant of the spring is 19.6 N/m. what is the period of the spring motion
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