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A mixture of ozone and oxygen contaning 20% by volume of ozonediffused through a porous plug in 172seconds, while the same volumeof pure oyygen took 164 seconds to diffuse through the same plug. Calculate the molecular weight of ozone.
At very fast car races the sound of the engine as a car approaches is much different than when it passes you. How fast would the car need to be going to have the change in frequency be one octave
A 6.0 V battery is connected to a wire made of three segments of different metals connected one after another, Find the potential difference across tungsten wire
A 20.0 kg floodlight in a park is supported at the end of a horizontal beam of negligible mass that is hinged to a pole. A cable at an angle of 30.0 degrees with the beam helps support the light. Find (A) the vertical component of the force exerte..
A bottle made of ordinary glass has an internal volume of 1.0000 liter at 20.0 oC, At what temperature ( inoC, enter deg in the answer box) will water begin to overflow the bottle
When a uniform electric field directed horizontally (from left to right) is introduced, equilibrium is eventually established with the mass hanging at an angle
A bowling ball of mass 1 kg hits a spring with velocity 1 m/s. The spring constant is also 1 (how convenient!). What is the maximum compression of the spring in centimeters
A transformer is to be used to provide power for a computer disk drive that needs 6.4 V (rms) instead of the 120 V (rms) from the wall outlet. Find the number of turns in the secondary
A 11m ×13m house is built on a 15cm -thick concrete slab. What is the heat-loss rate through the slab
A bucket of water with a mass of 8.0 kg is attached to a rope that is wound around a cylinder. What is the tension in the rope
A light spring with spring constant 1200 N/m hangs from an elevated support. From its lower end hangs a second light spring, which has spring constant 1650 N/m. An object of mass 1.50 kg is hung at rest from the lower end of the second spring.
A projectile is fired up into the air at a speed of 199 m/s at an angle of 17° relative to the horizontal. Determine the maximum height the projectile will reach
A cylindrical tube is closed at both ends by glass plates 10.0mm thick. if the inside length of the tube is 7.5 cm, what is the total optic path length between the outer surfaces
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