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A uniform narrow tube 1.79 long is open at both ends. It resonates at two successive harmonics of frequencies 285 and 342 .
A. What is the fundamental frequency?
B. What is the speed of sound in the gas in the tube?
determine the maximum height attained by the 2.1-kg mass
A car is traveling in the x direction with a velocity of 20 m/s. The driver applies the brakes, What is the stopping distance
a tennis ball is fired from a gun that us mounted on the floor. the tennis ball has an initial speed Vo= 25.0m/s, what is the speed of the tennis ball when it reaches your racket
A magnetic field has a magnitude of 1.20 10-3 T, and an electric field has a magnitude of 5.40 103 N/C. find the magnitude of the net force that acts on the charge
The magnitude of a magnetic field a distance 0.0001 m from a wire is 11.0*10^4 T. How much current is flowing through the wire
A standardized biological microscope has an 8.0--focal-length objective. What focal-length eyepiece should be used to achieve a total magnification of.
Three forces are applied to a tree sapling, to stabilize it. If F1= 282 N and F2= 355 N, find F3 in magnitude and direction. The angle between F1 and F2 is equivalent to 110 degrees.
In a certain binary-star system, each star has the same mass which is 6.0 times of that of the Sun, and they revolve about their center of mass. What is their period of revolution in years
A 70,000 kg spaceship wants to orbit a tiny black hole at a height of 10,000 m. What speed should the captain tell the computer to set the spaceship for
A 81.0 skydiver can be modeled as a rectangular "box" with dimensions 18.0x 44.0 x 185. What is his terminal speed if he falls feet first
A car of mass 920.0 kg accelerates away from an intersection on a horizontal road. When the car speed is 41.0 km/hr (11.4 m/s), the net power which the engine supplies is 4300.0 W (in addition to the extra power required to make up for air resista..
A garden plot must have a central planting area of length 13 m and width 8 m. There is to be a sidewalk around its edge of width w. If the total area, planting area plus sidewalk area, is 150 m^2, what is the sidewalk width w in meters.
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