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A chick farmer decides to increase the size of her flock from500 chickens to 2000 chickens. She must relieve her husbandsanxiety about the increased noise (he says that 2000 chickens willbe 4x louder than 500 chickens)
Find the change in intensity level and estimate how much louder will the sound be.
a 1.00 kg glider attached to a spring with a force constant 49.0 nm oscillates on a horizontal frictionless air track.
1 what is the lens equation? what do o i and f stand for in the equation?2 what are the five parts of the optical bench
A jogger is running around a circular track of circumference 400m. If the jogger has a speed of 12 km/h, what is the centripetal acceleration of the jogger
Unpolarized white light is incident on a polarizer and then falls on an analyzer whose TA (Transmission Axis) makes an angle of ? = 40.4? with the polarizer. What is the fraction of the original light transmitted through both the polarizer and anal..
When laser light of wavelength 633.4nm passes through a diffraction grating, the first bright spots occur at 17.8 degrees from the central maximum. At what angles do the third bright spots occur
A spring is hung from the ceiling. A 0.430 -kg block is then attached to the free end of the spring. Find the angular frequency of the block's vibrations
The greatest ocean depths on the Earth are found in the Marianas Trench near the Philippines. Calculate the pressure due to the ocean at the bottom of this trench
The flywheel of a gasoline engine is required to give up 510J of kinetic energy while its angular velocity decreases from 630rev/min to 480rev/min, What moment of inertia is required
an 80.0-n box is pulled 20.0 m up a 30 degree incline by an applied force of 100 n that points upwards parallel to the
a capacitor is formed from a hollow copper sphere of inner radius 44.5 cm and outer radius 55.6 cm. calculate the
Consider a rock that is thrown off a bridge of height 26 m at an angle = 21° with respect to the horizontal, find the the time at which the rock lands
A 73 trampoline artist jumps vertically upward from the top of a platform with a speed of 4.0. If the trampoline behaves like a spring of spring constant 6.2×104, how far does he depress it.
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