Roughly 25% of the sun is comprised of helium and about 75% is
hydrogen. Can either...
Roughly 25% of the sun is comprised of helium and about 75% is
hydrogen. Can either of these species escape from the gravitational
field of the sun given that the temperature of its surface is ~5500
K?
In the sun, 1000g of hydrogen fuses to 993g of helium while the
other 7g of matter is converted into energy using Einstein's famous
equation E=mc2, where c is the speed of light (3.0*108m/s).
~ What is the ratio of the energy released by the fusion of 1.0
kg of hydrogen to that released by fission of 1.0 kg of
Uranium-235?
~Given the obvious advantage in energy production, briefly
describe some of the difficulties in designing and operating a
fusion...
In the sun, 1000g of hydrogen fuses to 993g of helium while the
other 7g of matter is converted into energy using Einstein's famous
equation E=mc2, where c is the speed of light (3.0*108m/s).
1. What is the ratio of the energy released by the fusion of 1.0
kg of hydrogen to that released by fission of 1.0 kg of
Uranium-235?
2. Given the obvious advantage in energy production, briefly
describe some of the difficulties in designing and operating a...
The star Phi Orionis, like the Sun, is powered by the fusion of
hydrogen to helium. The mass of Phi Orionis is Mφ = 18M. The
luminosity of Phi Orionis is Lφ = 20, 000L. Discuss the likelihood
of intelligent life existing on a planet orbiting the star Phi
Orionis. [Questions you might want to consider: What is the
lifespan of Phi Orionis? How long did it take intelligent life to
develop on Earth? How far would you have to...
Gaseous feed to the reactor composition 75% butane (
C3H8) and 25% hydrogen ( percent by volume)
is burned in a reactor with 25% excess air. The percentage
conversion of butane to CO2 95% and the balance to CO.
Calculate the mole composition of the stack
Why can Hydrogen and helium only hold two electrons in there
valence shell, but Neon can hold 8?(You will receive extra credit
if you can explain this with quantum numbers)
A person is about to take off in an air balloon, full of helium,
can be considered as a sphere with a radius of 7.5 m. The basket
and balloon material have a combined mass of 314 kg. The balloon is
kept from moving up by a certain amount of ballast, in the form of
sandbags, which provides its own weight. The person has a mass of
125 kg. Helium has a density of 0.18 kg/m3, while air has a...
A stock has a beginning market value of $75. It can either
increase in value 15% each year or decrease in value by 15%. A
3-year European call option written on the stock has an exercise
price of $75. The risk-free rate of return is 5% per year. What is
the current equilibrium price of the call option if you maintain a
riskless portfolio by readjusting your relative positions in stocks
and puts at the end of each year?
X=75...
Please tell us about your experience with budgeting. This can be
either experience from a work environment or with your personal
life. If you've learned anything cool this week that will inform
your budgeting practices in the future, please tell us about
it.
How can you use the material learned in this class at your
workplace? Either about computer-based decision-making tools in
management, or use of excel solver, linear programming in solving
managerial decision-making problems, or nonlinear programming
techniques.