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An organ pipe closed at one end has two successive harmonics with frequencies of 2170 Hz and 2790 Hz. What is the fundamental frequency of the pipe?
A train with a total mass of 2.4 × 10^6 kg rises 715 m while traveling a distance of 64 km at an average speed of 12 km/h. Find power output of the train's engines
The moon's diameter is 3.48 x 106 m, and its mean distance from the earth is 3.85 x 108 m. The moon is being photographed by a camera whose lens has a focal length of 60.0 mm.
A 1280 N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A W = 1820 N crate hangs from the far end of the beam. Calculate the magnitude of the tension in the wire.
A solid spherical ball of mass 1.27 kg and radius 0.12 m rolls along a smooth, level surface with a speed of 2 m/s. How far up the plane does the ball go
A car slows down with an acceleration that has a magnitude of 3.5 m/s2, What was the car's initial velocity
A 2780kg satellite used in a cellular telephone network is in a circular orbit at a height of 700kmabove the surface of the earth. What is the gravitational force on the satellite
a beam of partially polarized light can be considered to be a mixture of polarized and unpolarized light. suppose we
What is the ball's initial height? What are the block and ball's velocities after the collosion? What is the balls height and angle from the normal after the collision?
In traveling to the Moon, astronauts aboard the Apllospacecraft put themselves into a slow rotation to dsitribute theSun’s energy evenly. At the start of their trip, theyaccelerated from no rotation to 1 revolution per minute during a12- min time ..
a long wire lying along the x-axis carries a current of 2.80a in the x direction. there is a uniform magnetic field
Two point charges 1.9cm apart have an electric potential energy -150?J . The total charge is 30nC
An intern pushes a 72 kg patient on a 15 kg gurney, producing an acceleration of 0.60 m/s2. How much work does the intern do by pushing the patient and gurney through a distance of 2.5 m
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