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A rectangular block of copper has sides of length 5 cm, 16 cm, and 38 cm. If the block is connected to a 4.0 V source across two of its opposite faces of the rectangular block, what are the currents
The skater farthest out has a mass of 80.0 kg and is 6.20 m from the pivot. He is skating at a speed of 6.40 m/s. Determine the magnitude of the centripetal force that acts on him.
Suppose that you wish to fabricate a uniform wire out of 1.15 g of copper. Assume the wire has a resistance R = 0.500 , and all of the copper is used. (a) What will be the length of the wire? (b) Wh
What is the magnitude of the centripetal acceleration that the blade must sustain at this point?Express this acceleration as a multiple of g=9.80m/s2.
This is a section that is going to be part of an upcoming labquiz. The section involves an experiment we have covered thissemester. In the experiment we reacted trans-cinnamaldehyde with benzyltrip
How many calories are obsorbed by a pot of water with a mass of 500 g in order to raise the temperature from 20 degrees celcious to 30 degrees celcious.
How long would it take to produce enough aluminum to make a24 cans of Al each can 5g Al, a current 50000A was employed andcurrent efficiency was 91.1%
If the initial concentration of chlorine is 0.030M and of bromine monochloride is0.020M, what is the equilibrium concentration of bromine?
What is the magnitude of the centripetal acceleration that the blade must sustain at this point? Express this acceleration as a multiple of g=9.80m/s2.
In the Bohr model of the hydrogen atom, an electron in the 8th excited state moves at a speed of 3.42 x 104 m/s in a circular path having a radius of 3.39 10-9 m. What is the effective current associa
Assume that the layer of the atmosphere between 800 Hpa and 700 Hpa absorbs 1.0*10^6 J/M^2 of solar radiation. Calculate the resulting increase in the mean temperature and in the thickness of the la
A 1.00-L vessel initially contains 0.010 mol BrCl, 0.080 molBr2, and 0.060 mol Cl2 at 500 K. Which direction will the reaction proceed in order to reach equilibrium? Support your answer with a
A weightlifter lifts a weight of mass 40.0 kg through a distance of 0.590 m, then lowers it gently. He does this 25 times. Calculate the net work done by the force of friction due to the rope rubbin
A thin ring, which has a radius of 0.040 m and a mass of 1.8 kg, is dropped straight down onto the disk so that they are concentric and rotating together. (Note: The ring is not rotating before the
This is a section that is going to be part of an upcoming labquiz. The section involves an experiment we have covered this semester. In the experiment we reacted trans-cinnamaldehyde with benzyltri
A block is hung by a string from the inside roof of a van. When the van goes straight ahead at a speed of 31 m/s, the block hangs vertically down.
A 0.15 kg mass is on the end of a thing rod that is rotating about its center with an angular frequency of 17 rad/s. The rod is 0.45 m long and has a mass of 0.06 kg. What is the rotational kinetic
Calculate the percentages of Na2CO3 and NaHCO3 in the sample.Hint: Phenolphthalein will indicate when only the first equivalence point happens, Bromocresol green will indicate when the second equiva
A box weighing 480 N is pushed along a horizontal floor at constant velocity by a force of 230 N parallel to the floor. What is the coefficient of kinetic friction between the box and the floor?
A 0.45 M solution of pentanoic acid (CH3CH2CH2CH2COOH) is found tohave a pH of 3.73 at 298K. What is the value of the acid dissociation constant Ka for this monoprotic acid?
A parallel plate capacitor is held at fixed potential while a dielectric with k=10 is inserted into the vaccuum between the plates,filling spaces. A) What is now the total electric energy stored by
Two blocks are stacked one on top of the other. the coefficient of friction between the two blocks is 0.20, adn the coefficient of friction between the bottom block adn the floor is 0.10. what is th
Liquid A has vapor pressure x and liquid B has vapor pressure y. What is the mole fraction of the liquid mixture if the vapor pressure above the solution is 30% A by moles?Calculate i
0.10 moles of a diprotic acid, H2A, is dissolved in 250 mL ofwater. The Ka1 of this acid is 1.0 x 10E-5 and Ka2 is 1.0 x 10E-10. What is the concentration of the di-anion, [A^2-], in this solution(i
Determine the current in the loop in milli-amps (the resistivity for copper is 1.72 x 10-8 Ohm/meter). Please be as detailed as possible.