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Use Bernoulli's equation to calculate the upward force on an airplane wing if the average flow speed of air is 195 meter per second above the wing and 163 meter per second below the wing. The density of the air is 1.1 kg/m3 and the area of each wing surface is 25 m2.
in N
Four spheres are arranged as in the figure in the corners of a 2cm-side square, How much work is required to move a tiny charge of 10nC from C to A
A machinist turns the power on to a grinding wheel, at rest, at time t = 0 s. The wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 66 rad/s. The wheel is run at that angular velocity for 37 s and then power is shu..
A water tank filled (with water) to the brim has a hole in itsside 30 meters down from the top. The area of the hole is0.08 m^2. Calculate the velocity of the water as it exits the hole
You are given a sample of metal and asked to determine its specific heat. You weigh the sample and find that its weight is 25.5 N. What is the sample's specific heat
a 3000 kg car passes over a bump in a road that follows an arc of circle of radius 40m. what force does the road exert
A wheel (radius = 14 cm) is mounted on a frictionless, horizontal axle that is perpendicular to the wheel and passes through the center of mass of the wheel, find the moment of inertia (of the wheel) about the given axle
An intergalactic rock star bangs his drum every 1.70s. A person on earth measures that the time between beats is 2.5s. How fast is the rock star moving relative to earth.
suppose you are pulling a large block up an inclined plane. what factors determine how much force is necessary to pull
The energy released by each fission within the core of a nuclear reactor is 2.00 x 102 MeV. Determine the power (in watts) that the reactor generates
A child in a swing starts from rest, while pulled back at an angle of 30 degrees from vertical. Determine the velocity of the boy just before he hit the ground
A cyclist approaches the bottom of a gradual hill at a speedof 20m/s. find the speed at which the cyclist crests the hill
A doubly charged ion with velocity 6.9 × 106 m/s moves in a path of radius30 cm in a magnetic field of 0.80 T in a mass spectrometer. What is the mass of this ion?
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