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A tube that is open at both ends is filled with an unknown gas. The tube is 190 cm long and 3 cm in diameter. By using different tuning forks it is found that resonances can be excited at frequencies of 315 Hz, 420 Hz and 525 Hz, and at no other frequencies in between. We now the speed of sound in this gas is 399 m/s.
Can you determine the amplitude of the wave? If so, what is it? If not, why not?
One way to decrease your use of fossil fuels is to heat your water via solar radiation. A solar water heater runs cold water through dark, radiation absorbing tubing.
You have a small electromagnet that consumes 300 W from a residential circuit delivering 120 V at 60.0 Hz. find the internal resistance of the electromagnet
A 0.88 kg ball drops vertically onto a floor, hitting witha speed of 33 m/s. It rebounds with an initial speed of 13m/s. What impulse acts on the ball during the contact
You find an unlabeled box of fine needles, and want to determine how thick they are. A standard ruler won't do the job, since all you can tell is that each needle is less than a millimeter thick.
A small sphere whose mass is 7.00E-03 g. carries a charge of 2.00E-08 C. Calculate the surface charge density (in coulombs/meter^2) for the sheet
Rank the vector combinations on the basis of their angle, measured counterclockwise from the positive x axis. Vectors parallel to the positive x axis have an angle of 0 . All angle measures fall between 0 and 360. Rank from largest to smallest. To..
A juniper wood plank measuring 7 ft by 0.6 ft by 0.3 ft is totally immersed in water. What is the net force acting on the plank
A 3.00-m long rod is hinged at one end. The rod is initially held in the horizon position, and then released as the free end is allowed to fall. What is the angular acceleration as it is released
A fish uses an internal organ known as a swim bladder to change itsdensity so that it is equal to that of water, enabling it to remainsuspended under water
A 3000-kg Ferris wheel accelerates from rest to an angular speed of 0.17rad/s in 11s, What is the net torque on the wheel
An uncharged capacitor and a resistor are connected in series to a source of emf. If emf = 10.00 V, C = 19.0 µF, and R = 100 ?, find the maximum change on the capacitor
A 1 cm long section of the Achilles tendon stretches to 1.005 cm, What is the strain in this segment of tendon
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