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The cold reservoir for this plant is a pool of water constantly fed with ice from a glacier. If the plant produces 100 MW of electrical energy, what is the rate at which ice is melted?
Calculate the equilibrium number of vacancies per cubic meter for copper at 1000(celcius). the energy for vacancy formation is .9 eV/atom; the atomic wieght and density (at 1000 C) for copper
What is the maximum electric power that could be produced by the plant if it boils the entire creek dry?
A 3-g bullet flying at 420 m/s hits a 2.2-kg aluminum block and embeds itself in the aluminum. After everything has come to equilibrium, how much has the entropy of the aluminum block increased? Be
The weaker the base is, the better it is as a leaving group becausethe leaving groups can easily stabilize the developing negative charge. What does it mean by stabilizing the developing negative ch
Imagine that you have a gas confined in an insulated cylinder by a piston. Imagine that you suddenly push hard on the piston, compressing the gas to one-half its volume.
A 1.00×104 kg railroad car is rolling at 1.00 m/s when a 8000 kg load of gravel is suddenly dropped in. What is the car's speed just after the gravel is loaded?
Calculate the percentage empty space in a (solid metal) which has aface-centered cubic lattice. In this calculation, show that this percentage is independent of the size of either the edge of the un
Calculate the percentage empty space in (Water), at25oC. (the density of water at this temperature is0.9971 g/mL). The volume of a water molecule can be taken as thesum of the volumes of two hydroge
A solid sphere of radius R = 40cm has a total positive charge of 26 mC uniformly distributed throughout its volume (the sphere is a non-conductor). Calculate the magnitude of the electric field at:
Calculate the percentage empty space in the (Air), which composed primarily of Oxygen and Nitrogen, at STP. (the average volume ofOxygen and Nitrogen molecules is 3.8*10-24cm3 /molecule).
A copper penny has a mass of 3.1 g. Being electrically neutral it contains equal amounts of positive and negative electricity.
How does the mass density compare to the density of individual neutrons (take them to have a radius of 2.3 attometers.
A sound source of 500 Hz with an acoustic power of 1/10 of a watt how do you find the intensity 1/2 a m from the source, the pressure amplitude, and the magnitude of the specific acoustic impedance
Calculate the rate of heat transfer between the turbine and the surroundings . note the relative magnitudes of the kinetic energy and enthalpy change.
Calculate the heat transferred for the decomposition of 53 gof ammonium dichromate according to the following equation.(NH4)2Cr2O7 -->N2 + 4H2O +Cr2O3 &
How much heat is transferred when 100 g of calcium oxide (CaO)reacts with carbon according to the equation below? Is this reaction endothermic or exothermic?CaO + 3C --> CaC2 +CO &nbs
A vanadium electrode is oxidized electrically. If the mass ofthe electrode decreases by 114 mg during the passage of 650 coulombs, what is the oxidation state of the vanadium product?
A hypothetical element has 2 main isotopes. One has a mass of 56 amu and the other has a mass of 58 amu. If the atomic weight of this element is 56.73 amu, what is the percent abundance
Now consider the core to be surrounded by a cladding material with an index of refaction of n=1.30. What is the maximum angle θ, that light can enter the fiber and be trapped by total internal
The reaction of 9.6 grams of fluorine with excess chlorine produced 3.2 grams of ClF3. What percent yield of ClF3 was obtained?
In the Bohr model of the hydrogen atom, an electron moves in a circular path around a proton. The speed of the electron is approximately 2.46 x 106 m/s. (a) Find the force acting on the electron as
A person stands on a scale in an elevator. As the elevator starts, the scale has a constant reading of 598 N. As the elevator later stops, the scale reading is 392 N. Assume the magnitude of the ac
A balloon containing 5.7 dm3 ofgas at 14°C and 100.0 kPa rises to an altitude of 2000 m, wherethe temperature is 20°C. The pressure of gas in the balloon isnow 80.0 kPa. What is the vol
Consider light that is refracted by a prism shaped like an equilateral triangle. The incident ray is parallel with the prism's base. what is the total deflection of the ray, given that the index of