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A thin smooth sign is attached to the side of a truck as is indicated in Fig. P9.53. Estimate the friction drag on the sign when the truck is driven at 55 mph.
Which medium has the higher "index of refraction" for sound - What is the critical angle for a sound wave incident on the surface between air and water?
When you walk toward a mirror you see your image approaching you. If you walk at 2 m/s, how fast do you and your image approach each other
Two containers contain the same gas at different temperatures and pressures, as indicated in the figure. The small container has a volume of 2 L, and the large container has a volume of 4 L.
An airplane pilot fell 355 m after jumping from an aircraft without his parachute opening. He landed in a snowbank, creating a crater 1.3 m deep, estimate the work done on him by air resistance as he fell
A parallel-plate capacitor has an area of 5.15 cm2, and the plates are separated by 1.05 mm with air between them. It stores a charge of 337pC. What is the potential difference across plates of the capacitor.
A basketball player is running at 5.20 m/s directly toward the basket when he jumps into the air to dunk the ball. What vertical velocity does he need to rise 0.600 meters above the floor
Assume that a certain location on the Earth reflects 31.0% of the incident sunlight from its clouds and surface. what is the radiation pressure (Prad) on the Earth at this location
A certain part of an aircraft engine has a volume of 2.2 ft3. (a) Find the weight of the piece when it is made of brass.
A cylindrical air duct in an air conditioning system has a lengthof 5.5 m and a radius of 7.2 x 10^-2 m. A fan forces air ( n = 1.8x 10^-5 Pa·s) through the duct, such that the air in a room(volume = 280 m^3) is replenished every ten minutes. Dete..
What is the momentum of a 950 kg sports car traveling down the road at a speed of 26 m/s
In a car lift, compressed air with a gauge pressure of 4.0 × 10^5 Pa is used to raise a piston with a circular cross-sectional area. what is the maximum mass that can be raised using this piston
An ideal inductor of 14 mH has a sinusoidal voltage across it of amplitude 38. What is the amplitude of the sinusoidal current through the inductor
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