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Estimate how many books can be shelved in a college library with 3500 of floor space. Assume 5 shelves high, having books on both sides, with corridors 1.5 wide. Assume books are about the size of t
A circular disk with surface with surface charge density 2 x 10-2 C/m is surrounded by a sphere with radius of 1m. If the flux through the sphere is 5.2 x 10-2 Vm, what is the diameter of the disk?
In a Fourth of July celebration, a firecracker is launched from ground level with an initial velocity of 28.6 at 39.1 from the vertical.
In terms of kinetic molecular theory, explain why pumping air into a collapsed soccer ball causes the ball to increase in size and become rigid.
A student is asked to prepare a buffer solution at pH = 8.60, using one of the following weak acids: HA (Ka = 2.7 x10-3), HB (Ka = 4.4 x 10-6), HC(Ka = 2.6 x 10-9). Which acid is best f
A particle of charge +3.0 x 10-8 is in a unifrom electric field directed to the left. It is released from rest and moves a distance of 5.0 cm and its kinetic energy is increased by +4.5 x 10-4 J. a)
The instruction booklet for your pressure cooker indicates that itshighest setting is 13.5 psi. You know that standard atmospheric pressure is 14.7 psi, so the booklet must mean13.5 psi above&n
Two large, parallel, metal plates carry opposite charges. They are separated by 0.1 m and the potential difference between them is 500. V. a) What is the magnitude of the electric field, if it is un
Assume you have a solution that is 0.020M in both Cd2+ions and Ni2+ ions. If you add sulfide ions, CdS and NiSwill precipitate. Which ion will precipitate first?
The highest ambient air concentration of ozone recorded in SanFrancisco in 1994 was 1700 micrograms per cubic meter (at 1atmosphere pressure and 80.6
Exactly what weight of dry ice is needed to react with 2mmol of phenylmagnesium bromide? Would an excess of dry ice beharmful?
Should it be in series or in parallel with the 34.8-μF capacitor? What should be its capacitance? What If? The next circuit comes down the assembly line with capacitance 29.8 μF between A and
Alkali halides commonly have either the sodium chloride structureor the cesium chloride structure. The molar mass of CsCl is2.88 times the molar mass of NaCl, and the edge length of the unitcell for
Every second at Niagara Falls, approximately 5000 m3 of water falls a distance of 50.0 m. What is the increase in entropy per second due to the falling water? Assume the mass of the surroundings is
A refrigerator operates in a well insulated closed room. For some time the door of the refrigerator is left open. Will the temp of the room decerese increase or stay constant, after the door has bee
When the mass is halfway between its equilibrium position and the end-point, its speed is measured to be 38.8 cm/s. Calculate the mass of the block.
How do you go from a five membered ring diester to a six member edring fenchone? What steps do you need to take?
The hose lies horizontally on the ground, and a stream sprays vertically out of a small leak to a height of 0.62 meters. What is the pressure inside the hose?
A solid sphere has a radius of 0.35 m and a mass of 120 kg. How much work is required to get the sphere rolling with an angular speed of 40 rad/s on a horizontal surface? Assume the sphere starts fr
A solution prepared by dissolving 45.0 g ofNiSO4 in water. What current would be needed to deposit all of the nickel in 5 hours?
A position vector in the first quadrant has an x component of 4 m and a magnitude of 11 m. What is the value of its y component?
Both containers are filled initially to the same height of 1.00 m, one with water, the other with mercury. The valve is then opened. Water and mercury are immiscible. Determine the fluid level in th
Would it be possible to use non-metals and their ions to construct one or more of the electrodes or would some modification be required in the experimental stage?
A solution of .85g of a unknown organic compound in 100g ofbenzene has a freezing point of -5.16C. What is the molality of the solution and the molar mass of the solute?