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A surfboard of mass S rests on a frictionless surface. The surfboard is attached to a spring (constant K) which is in turn attached to an immobile wall. The surfboard is displaced a distance of C from equilibrium and then is released.
If a simple pendulum had the same period of oscillation, what would the length of the string be?
One afternoon, a couple walks three-fourths of the way around a circular lake, the radius of which is 3.00 km. What is the distance they travel
A 80cm long metal string under 34.5 N tension has a linear mass density 2.10x10^-4 kg/m. Find the frequencies of the first three harmonics
The wave reflects from the speeder's car and returns to the police car, where its frequency is measured to be 280 Hz less than the emitted frequency. Find out the speeder's speed with respect to the ground.
the longest shot on a golf tournament was made by Mike Austinin 1974. The ball went a distance of 471 meters. Calculate the height of the cliff
In an ice show a 45.0 kg skater leaps into the air and is caught by an initially stationary 85.0kg skater. What is their final velocity assuming negligible friction and that the leaper's original horizontal velocity was 4.00 m/s
Calculate, using Newton's law of gravity, the size of the force of attraction between the Earth and a mass of 5.0kg on the Earth. Data: Distance to the center of Earth from thesurface = 6370 km. Mass of Earth = 5.98*1024 kg.
Two children are holding on to opposite ends of a rope. The one on roller skates is being swung around in circles. if the moving child weighs 75 lb, if he attains constant speed of 12 ft/s, and if the rope is 10 ft long, how much tension is in the ro..
A proton has a speed of 0.85c. FIRST Calculate the rest energy of the proton, Calculate the kinetic energy of the proton
A 20.0 kg floodlight in a park is supported at the end of a horizontal beam of negligible mass that is hinged to a pole. A cable at an angle of 30.0 degrees with the beam helps support the light. Find (A) the vertical component of the force exerte..
A thick layer of oil is floating on the surface of water in a tank. A beam of light traveling in the oil is incident on the water interface , What is the refractive index of the oil
A person can see clearly up close, but cannot focus on objects beyond 82.0cm . She opts for contact lenses to correct her vision. Is she nearsighted or farsighted
Light from a laser with a wavelength of 760 nm is directed at a diffraction grating of 1500 lines/cm. Calculate the distance between adjacent bright fringes
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