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Assume that you have a tightly capped 5 liter container of oxygenated water. The temperature of the water is 25 degrees celcius, the oxygen partial pressure being 2.4 atmospheres . This water is degassed(outgassed) such that 96% of the oxygen is removed. How many moles of oxygen gas are removed from the sample? How many molecules? How many grams? How many drams? And, getting biblical, how many cubic cubits (STP)?
The figure below shows two point charges q1 = +5.6x10-8 C and q2 = -6.3x10-8 C.
During a testing process, a worker in a factory mounts a bicycle wheel on a stationary stand and applies a tangential resistive force of 115 N to the tire's rim. what force must be applied to the chain
0.5m side wooden cube floats on the lake surface with 2/3 of the cube submerged under the water. calculate the minimum work down on the cube that would sink it?
A uniform beam having a mass of 60 kg and a length of 2.8 m is held in place at its lower end by a pin. What is the magnitude of the force the pin exerts on the beam
A mass less spring stretches 10 cm when a load of 50 kg is suspended from it. How far will the spring stretch if a load of 70 kg is placed on the spring
The Cosmoclock 21 Ferris wheel in Yokohama City, Japan, has a diameter of 100 m, Find the speed of the passengers when the Ferris wheel is rotating at this rate
What is the wavelength of the spectral line? B) Assuming this line is from a transition from level n1 = 3 to level n2 = 2 (i.e. the longest wavelength Balmer series transition), what do you calculate for the value of Rydberg constant.
an experiment measures the speed of a 250-kilogram motorcycle every 2 seconds. the motorcycle moves in a straight
A photographer uses his camera, whose lens has a 50 mm focal length, to focus on an object 3.5m away. How far must the lens move to focus on this second object
a rocketship of proper length d travels at constant velocity v relative to a frame s. the nose of the ship a passes the
The nucleus of an atom has a radius of about 7.9Ã-10-15 m. The electron is normally at a distance of about 3.4Ã-10-11 m from the nucleus, Find the volume of the nucleus
A helium balloon ride lifts up passengers in a basket. Assume the density of air is 1.28 kg/m3, find the volume of helium in the balloon when fully inflated
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