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An airplane has an effective wing surface area of17m2that is generating the lift force. In level flight the air speed over the top of the wings is259m/s, while the air speed beneath the wings is241m/s. What is the weight of the plane?
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A seed shoots out from the pod with the speed of 2.8 m/s but with a direction of motion 30° below the horizontal. What horizontal distance does it cover during its flight
A uniform electric field of magnitude 271 V/m is directed in the negative x direction. A +12.7 ?C charge moves from the origin to the point (x, y) = (15.5cm, 46.0 cm). What was the change in the potential energy of this charge?
You are standing at a red light on SW 8th Street at 97th Avenue. The light turns green, find the work done on your car by the frictional force
Three objects with masses, m1 = 6.0 kg, m2 = 10.0 kg, and m3 = 15.0 kg, are attached by strings over frictionless pulleys as indicated. The horizontal surface is frictionless and the system is released from rest. Using energy concepts, find out th..
A particle with charge 6.40x10^-19 C travels in a circular orbit with radius 4.68 mm due to the force exerted on it by a magnetic field with magnitude 1.65 T
An 8.0 m, 100 N uniform ladder rests against a smooth wall. The coefficient of static friction between the ladder and the ground is 0.40, what is the minimum angle that ladder can make with the floor before it slips.
Two slits are separated by .1 mm. Planar light incident on them produces a diffraction pattern on a board 1.35 m away, estimate the wavelength of light
a 120 turn coil of radius 1.8 cm and resistance 5.3 ? is placed outside a solenoid of radius 1.6 cm. Find the magnitude and direction of the current induced in the coil
Calculate the angle of refraction at the first surface
I just got this wrong for the third time. A u-tube manometer is used to measure the pressure of a vessel under vacuum. Assume the manometer is open to atmospheric pressure.
A 47.0-g golf ball is driven from the tee with an initial speed of 50.0 m/s and rises to a height of 25.6 m. Neglect air resistance and determine the kinetic energy of the ball at its highest point
An additional magnetic field, horizontal and to the right, of 0.3 T is turned on. What are the magnitude and direction of the torque vector on the loop?In Nm
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