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The greatest value ever achieved for the speed of sound in air is about 0.84 × 104 m/s, and the highest frequency ever produced is about 1.9×1010 Hz. Discover the wavelength of this wave. Answer in units of m.
A bullet of mass m= 0.0230 kg is fired along an incline and imbeds itself quickly into a block of wood of mass M= 1.30 kg. find the speed of the bullet just before it hits the wood
The plane has a telescopic bombsight set so that the bomb hits the target seen in the sight at the moment of release. At what angle from the vertical was the bombsight set
By means of a rope whose mass is negligible, two blocks are suspended over a pulley, as the drawing shows, with m1 = 11.7 kg and m2 = 43.9 kg. find the mass of the pulley
Halley's comment moves in an elliptical orbit around the sun with eccentricity e=0.967. Its distance from the sun at perihelion is rmin=8.9 x 10^7 km. Calculate the orbital period of Halley's comet
One of the Niagara turbines uses 172,000 cubic feet of water perminute under a head of 215 ft. What is the horsepower developed
Relative to the ground, a car has a velocity of 14.5 m/s, directed due north. Relative to this car, a truck has a velocity of 24.5 m/s, directed 52.0° north of east. What is the magnitude of the truck's velocity relative to the ground?
A +30 µC charge is placed 40 cm from an identical +30µC charge. How much work would be required to move a +0.41µC test charge from a point midway between them to a point 5cm closer to either of the charges?
There are two identical, positively charged conducting spheres fixed in space. The spheres are 45.0 cm apart (center to center) and repel each other with an electrostatic force of F1 = 0.0720 N. find the initial charge on each sphere
A force Farrowbold applied to an object of mass m1 produces an acceleration of 3.10 m/s2, What is the value of the ratio m1/m2
While in orbit about the Earth, a space shuttle's mass is 50,000 kilogram and its speed is 8 km/s. Evaluate what is its kinetic energy
Three identical stars of mass 7.46 ×1024 kg are located at the vertices of an equilateral triangle with side 7500 km. At what speed should they move if they all revolve under the influence of one another's gravitational force in a circular orbit circ..
A cyclist starts from rest and coasts down a 4.0?hill. The mass of the cyclist plus bicycle is 85 kg. Ignore air resistance and friction. How fast is the cyclist going
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