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A helicopter is moving horizontally to the right at aconstant velocity. The weight of the helicopter is W =53800N. The lift force L generated by the rotating blademakes an angele of 21 degrees with respect to the vertical.
a) what is the magnitude of the lift force?
b) Determine themagnitude of the aire resistance R that opposes the motion.
Certain fish, such as the Nile fish (Gnathonemus), concentrate charges in their head and tail, thereby producing an electric field in the water around them. find the strength of the magnetic field at the receptor cells
A 7kg squirrel walks to the end of a 15 kg board resting on two saw horses. When the squirrel is at the 1m position away from the right end of board, How long is the board
A 130kg mail bag hangs by a vertical rope 3.3m long. As the bag is moved to this position, how much work is done by the worker
the temperature of the air in a resonator is 15degc when a tuning fork vibrates at one end the spacing between tow
A 3 kg block is set into motion up an inclined plane of 30 degrees with an initial speed of 8 m/s. what is the frictional force exerted on the block
The cord is after that pulled from below, shortening the radius of the circle in which block revolves to 0.15. Model the block as a particle.
q1. a 1.50 kg object is held 1.20 m above a relaxed massless vertical spring with a force constant of 310 nm. the
An aluminum wire has a length of 20m and adiameter of 0.0025in. It is connected to a 9.35V battery. The resistivity of aluminium is 2.65x10^-8(ohm(m))a).
A small moon of a giant planet has an orbital period of 1.74 days and an orbital radius of 4.02 105 km. determine the mass of the planet
A length of aluminum wire has a resistance of 14.0 ? at 22.0°C. When the wire is warmed in an oven and reaches thermal equilibrium, Neglecting thermal expansion, find the temperature of the oven
A 13 turn circular loop of wire has a diameter of 0.66m. The plane of the circular loop creates an angle of 63 to the Earth's magnetic field. In 0.15s the coil is flipped at a location where the magnitude of the Earth's magnetic field is 34 μT.
The ultrasonic transducer used in medical ultrasoundimaging, is a very thin disk ( m =0.10g) driven back, What is the disk's maximum speed at this amplitude
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