Intensity of sound at a rock concert
Determine the number of times, louder is the intensity of sound at a rock concert in comparison with that of a whisper, when the two intensity levels are 110 dB and 3 dB, correspondingly?
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Find out the greatest possible angular speed the neutron star can encompass so that the matter at its surface on the equator is merely held in orbit through the gravitational force.
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Biometric measurements point out that each hand usually makes up about 1.25% of body weight. Determine horizontal force which must her wrist apply on her hand?
The flash of lightning is seen, and resulting thunderclap is hear 3 seconds later. If speed of sound avenges 1,100 feet per second, how far away is storm?
If, rather, the ball is revolved so that its speed is 4.0 m/s, determine at what angle does the cord make with the vertical?
Determine the resulting gravitational force applied by the other two objects on the object at the origin.
The lab has 60cm^3 of a solution which is 40% HCl acid. How many cm^3 of the 15% solution of HCl acid must be mixed with 60cm^3 of 40% acid to get the solution of 25% HCl? How much of 25% solution is there?
A satellite having mass 200 kg is launched from the site on Earth's equator to an orbit at 185 km over the surface of Earth. (The mass of Earth is around 5.98 x 1024 kg, and the radius of the Earth is 6.38 x 103 km.) (i) Supposing a circular orbit,
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