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If you were to build a pipe organ with open-tube pipes spanning the range of human hearing (20 Hz to 20 kHz), what would be the range of the lengths of pipes required? shortest pipe m longest pipe.
A diffraction grating has 4436 lines/cm. Light that contains all wavelengths between 447 and 650 nm shines on the grating. Calculate the width of the dark area
A high diver of mass 65.0 kg steps off a board 10.0 m above the water and falls vertical to the water, starting from rest. what average upward force did the water exert on her
The starter motor of a car engine draws a current of 200 A from the battery. The copper wire to the motor is 4.90 mm in diameter and 1.2 m long, How much charge passes through the starter motor
The system shown below has frictionless pulleys and the string have negligible mass. what is the speed of the objects when they are at the same height
A stone has a mass of 3.15 g and is wedged into the tread of an automobile tire, as the drawing shows. The coefficient of static friction between the stone and each side of the tread channel is 0.941. determine the radius r of the tire
You place an object with an electrical charge of +0.256 C at a point in space, What is the magnitude and direction of the electric field at that point in space
Due to concerns about the salt water content in the estuary, the discharge in the channel needs to be varied to mimic tidal effects. This means that for 12 hours a day, the channel needs to carry a flow of 8m3.s1, and for the other 12 hours the fl..
The fastest measured pitched baseball left the pitcher's hand at a speed of 42.0m/s. what acceleration did he give the ball
A novice skier, starting from rest, slides down a frictionless 35.0 Degrees incline whose vertical height is 185 m. How fast is she going when she reaches the bottom
An electron is accelerated from rest by a potential difference of 440 V. It then enters a uniform magnetic field of magnitude 220 mT with its velocity perpendicular to the field. Calculate the radius of its path in the magnetic field
a particle of mass 2kg moves along axis x through the region in which its potential energy u(x) varies, what force acts on it at this position
the potential energy of a +5x10-6C charge decrease from 0.17J when it is moved from point A to point B. What is the change in the electric potential between these two points
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