Estimate magnitude of average acceleration
A 747 airliner reaches its takeoff speed of 170 in 35.3. What is the magnitude of its average acceleration?
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An airplane with a mass of 2.6 106 kg. has the air flow past the lower surface of the wings at 100 m/s. If the wings have a surface area of 1200 m2, how fast must the air flow over the upper surface of the wing if the plane is to stay in the air?
A 195 pF capacitor is connected in series with an unknown capacitor, and as a series combination they are connected to a battery with an emf of 24.0 V. If the 195 pF capacitor stores 125 pC of charge on its plates, what is the unknown capacitance?
A two-ended "rocket" that is initally stationary on a frictionless floor, with its center a the origin of an x axis. The rocket consists of a central block C(of mass M = 6.00kg) and blocks L and R (each of mass m = 2.00kg) on the left and right si
A rifle that shoots bullets at 436 m/s is to be aimed at a target 44.2 m away. If the center of the target is level with the rifle, how high (in cm) above the target must the rifle barrel be pointed so that the bullet hits dead center?
A conducting coil of 1800 turns is connected to a galvanometer, and the total resistance of the circuit is 50.0. Find the magnitude of the magnetic field.
What are the magnitude and direction of the electric field 12.0 cm directly above an isolated 45.9 10-6 C charge? 1 N/C 2 ---Direction--- away from the positive charge neither of these toward the positive charge
A 52 kg box is being pushed a distance of 7.0 m across the floor by a force vector P whose magnitude is 165 N. The force vector P is parallel to the displacement of the box. The coefficient of kinetic friction is 0.25. Determine the work done on t
A car traveling at a constant speed of 18.5 m/s passes a trooper hidden behind a billboard. One second after the speeding car passes the billboard, the trooper sets off in chase with a constant acceleration of 2.60 m/s2. How long does it take the
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