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A 50.0kg stunt pilot who has been diving her airplane vertically pulls out of the dive by changing her course to a circle in a vertical plane.Part AIf the plane's speed at the lowest point of the circle is 95.0m/s , what should the minimum radius of the circle be in order for the acceleration at this point not to exceed 4.00g ?Part BWhat is the apparent weight of the pilot at the lowest point of the pullout?
A lamp (R = 146 ), an electric heater (R = 24 ), and a fan (R = 49 ) are connected in parallel across a 122 V line. What is the voltage across the fan
A microwave oven of mass 12.5kg is pushed a distance 8.00m up the sloping surface of a loading ramp inclined at an angle of 36.2? above the horizontal, What is the work done on the oven by the force
A 1200-kg car is being unloaded by a winch. At the moment shown in figure 9-46, the gearbox shaft of the winch breaks, and the car falls from rest. Find the speed of the car as it hits the water
A uniform 1.3-kg rod that is 0.76 m long is suspended at rest from the ceiling by two springs, one at each end of the rod. Find the angle that the rod makes with the horizontal
A conductor is found to be transparent to ultraviolet light with wavelengths shorter than 200 nm. Assuming a permittivity equal to that of vacuum, and assuming that the effective mass equals the free-electron mass, calculate the Hall coefficient.
A long straight wire carrries a current I1 of 15 A. A rectangular coil with two sides parallel to the straight wire has sides 5 cm, what is the net force of the coil
A parallel plate capacitor is made with plates of 10 cm on a side, situated 0.1mm apart. what is the energy stored on the capacitor
approximately how far does it move while stopping? Express your answer to one significant figure and include the appropriate units.
A perfectly reflecting flat mirror is uniformly illuminated by light striking it perpendicularly. Calculate the intensity of the light
Two ropes are pulling upward on a large crate. The weight of the crate is 420. N. The tension in the left rope is the same as the tension in the right rope. If the crate is moving upward at a constant speed, what is the tension in the left rope?
Two small metallic spheres, each of mass m = 0.45 g, are suspended as pendulums by light strings from a common point, calculate the magnitude of the charge on each sphere
A 120.kg refrigerator is at rest on a kitchen floor ( mu of s= 0.43 and mu of K= 0.27). How much force is needed to move the refrigerator at a constant speed of 5.41 m/s
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