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a bee that is 3m away from a person produces a buzzing sound that is barely audible (the intensity is the threshold of hearing I0) What is the decible level of 1000 bees that are buzzing 1m away
A gardener opens a hose and water is ejected horizontally at the speed of 6m/s. The diameter of the hose is 2cm and the density of water is 1000kg/m^3.
What is coefficient of kinetic friction
Transverse waves travel with a speed of 18 m/s in a string under tension of 5 N. What tension is required for a wave speed of 27 m/s in the same string.
Calculate the velocity of the object for an elapsed time of t=1s. Use the formula v=v0+at, these use the v0,and the value for acceleration you determined in previouse step. PROBLEM:V=Vo+at Vo is 3.8 m/s a=1.2m/s^2
Draw a sketch that shows the distribution of dipoles in a ferromagnetic solid in zero applied magnetic field. Illustrate what is the name given to internal interaction acting on the dipoles
In soccer, a speed record was set for kicking a soccer ball at 43m/s. If the soccer player kicked the ball from ground level at an angle of 30° from the horizontal, what would be the flight time of the soccer ball? Assume that air resistance is ne..
Certain stars at the end of their lives are thought to collapse combining their protons and electrons together to form a neutron star. Such a star could be thought of as a giant atomic nucleus.
An elevator releases 11200J of gravitational potential energy as descending 4m between floors. How much does elevator weigh.
A Ferris wheel with a radius of 7.7 m rotates at a constant rate, completing one revolution every 37 s, Find the direction and magnitude of a passenger's acceleration when at the bottom of the Ferris wheel
If the speed of sound is 1100 feet per second and a tuning fork oscillates at 440 cycles per second, what is the wavelength of sound produced.
A block of weight W can slide on a horizontal surface. A force of W/n1 is applied to the right that causes the block to accelerate with acceleration equal to g/n2. g is the acceleration by reason of gravity. If the coefficient of kinetic friction is ..
an 8.5 m long wire of resistance 20.6 \(\Omega\) carries a current of 6.6, What is the magnitude of the electric field in the wire
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