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The static pressure to stagnation pressure ratio at a point in a gas flow field is measured with a Pitot-static probe as being equal to 0.6. The stagnation temperature of the gas is 20 °C. Determine the flow speed in m/s and the Mach number if the gas is air. What error would be associated with assuming that the flow is incompressible?
What is the magnitude of the magnitic filed.
A 2.75 cm high object is placed 2.5 cm in front of a concave mirror. If the image is 6.0 cm high and virtual, what is the focal length of the mirror
The highest recorded waterfall in the world is found at Angel Falls in Venezuela. Its longest single waterfall has a height of 807 m. If water at the top of the falls is at 16.3°C, what is the maximum temperature of the water at the bottom of the fal..
What is the Torino scale? What is the composition of comets? How often does Halley's Comet reappear? What is zodiacal light? Is it related to the Gegenshein? Suppose you are on the Moon facing the Earth. Will you observe phases of the Earth? If so..
A place kicker must kick the football from a point 30.2 m from the goal and clear a bar 3.00 m above the ground. what is the vertical component of the ball's velocity
The current in a refrigerator with a resistance of 8.5 ohm is 18.5 Amp (when the refrigerator is on). Calculate the power delivered to the refrigerator
A bicycle tire whose volume is 4.1 x 10-4 m3 has a temperature of 283 K and an absolute pressure of 3.31 x 105 Pa. How many moles of air must be pumped into the tire
The light shining on a diffraction grating has a wavelength of 490 nm (in vacuum). How many lines per centimeter does the grating have
A boat moves through the water with two forces acting on it. One is a 1800 N forward push by the water on the propeller, What will its velocity be at the end of that time
youngs double slit experiment is performed with light from a helium-neon laser with wavelength 633 nm. the screen is
An electron is released from rest in a uniform electric field ofmagnitude 2.35 x 104 N/C. Calculate the acceleration ofthe electron. (Ignore gravitation.)
A person with mass m1 = 60 kg stands at the left end of a uniform beam with mass m2 = 107 kg and a length L = 3.5 m. What is the location of the center of mass of the system
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