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A helicopter is moving horizontally to the right at a constantvelocity. The weight of the copter is 53800 newtons. The lift forcegenerated by the rotating blades make an angle of 21 degrees withrespect to the vertical.
a) what is the magnitude of the lift force?
B) Determine the magnitude of the air resistance that opposesthe motion.
A boy kicks a football with an initial velocity of 28.0 m/s at an angle of 30.00 above the horizontal. What is the highest elevation reached by the football
a wrecking yard inventor wants to pick up cars by charging a 0.400 m diameter ball and inducing an equal and opposite
A bead of mass m slides without friction down a track and around a loop-the-loop of radius R. The initial height of the track is h = 3.5R. What is the speed of the mass after going around the loop
How far does the jet travel while it is accelerating and how large is the force that the catapult must exert on the jet?
Two test charges are located in the x-y plane. If q1 = -2.30 nC and is located at x = 0.00 m, y = 1.040 m and the second test charge has magnitude of q2 = 4.00 nC and is located at x = 1.20 m, y = 0.750 m, calculate the x and y components
A transformer has 380 primary turns and 1220 secondary turns. The input voltage is 120 V and the output current is 15.0 A. What is the output voltage and input current
Imagine that you are standing at the top of a cliff 45 m high overlooking the ocean and you throw a rock straight downward at a speed of 15m/s
A bag of sugar weighs 7.00 lb on Earth. Find the mass of the bag of sugar in kilograms at each of the three locations
it's nighttime, and you've dropped your goggles into a swimming pool that is 3.2 m deep. How far are the goggles from the edge of the pool
A textbook of mass 1.98kg rests on a frictionless, horizontal surface. A cord attached to the book passes over a pulley whose diameter is 0.160m , find the tension in the part of the cord attached to the book
How many electrons would have to be removed from one sphere and added to the other to cause an attractive force between the spheres of magnitude 1.00 x 10^4 N (roughly one ton)? Assume that the spheres may be treated as point charges.
An 850g- iron block is heated to 370C and placed in an insulated container (of negligible heat capacity) containing 41.0g of water at 23.0C a).What is the equilibrium temperature of this system? The average specific heat of iron over this temperat..
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