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An air-traffic controller observes two aircraft on his radar screen. The first is at altitude 950 m, horizontal distance 19.2 km, and 25.5° south of west. The second aircraft is at altitude1300 m, horizontal distance 18.0 km, and 16.0° south of west. What is the distance between the two aircraft?
Two hockey players strike a puck of mass 0.169 kg with their sticks simultaneously, Find the instantaneous acceleration of the puck
A circular bird feeder 20 cm in radius has rotational inertia 0.12kg*m^2 . The feeder is suspended by a thin wire and is spinning slowly at 5.4 rpm. What is the rotation rate after the bird lands
The magnetic flux through the closed loop placed horizontally increases according to the relation ?(B)=1+6t2+7t3, What is the magnitude of the emf induced in the loop
The tires of a car make 86 revolutions as the car reduces its speed uniformly from 88.0 km/h to 60.0 km/h. How far does the car go? Find the total distance
An electric potential is set up across a pair of parallel plates such that the left plate is at -594 V, What is the kinetic energy of the electron when it reaches the hole in the right plate
One arm of a U-shaped tube (open at both ends) contains water, and the other alcohol. at what height will the water be
A certain centrifuge produces a centripetal acceleration of magnitude exactly 1230g at a point 11.9 cm from the axis of rotation. Find the number of revolutions per second
One leg of a Michelson interferometer contains an evacuated cylinder of length L, having glass plates on each end, what is the index of refraction of the gas
A spacecraft is in orbit around a planet. The radius of the orbit is 2.9 times the radius of the planet (which is R = 71474 km). What is the period of the spacecraft's orbit
A 40 percent efficient electric power plant produces 900MW of electric power and discharges waste heat into 30 C ocean water. Suppose the waste heat could be used to heat homes during the winter instead of being discharged into the ocean. A typical A..
A motorcycle and a police car are moving toward one another. The police car emits sound with a frequency of 532 and has a speed of 25.5. The motorcycle has a speed of 12.50. What frequency does the motorcyclist hear in this case?
A small, 300g cart is moving at 1.40m/s on an air track when it collides with a larger, 5.00kg cart at rest. What is the speed of the large cart after the collision
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