… Is the pressure exerted by each component in a gas mixture Daltonquot;s Law of Partial Pressures: PT = P1 + P2 + P3 + … PT = (n1 + n2 + n3

/in /by

… Is the pressure exerted by each component in a gas mixture Dalton”s Law of Partial Pressures: PT = P1 + P2 + P3 + … PT = (n1 + n2 + n3 +..) If PT = 1 atm, what is Pred? P1 = X PT What about the units of a mol fraction? How does the average motion of gas molecules in a container change with: (a) a change in temperature ? (b) an increase in the volume of the container, at constant temperature? (c) mixing in a different type of gas at the same temperature?

Supermassive Black Holes. Assume that a black hole with 10^15 Msun exists somewhere in the universe.

/in /by

Supermassive Black Holes. Assume that a black hole with 10^15 Msun exists somewhere in the universe.

a. If the mass of the black hole were made up by typical main sequence stars of a common mass at the same density, what would the average separation between the stars be (in AU)?

b. Would an observer be able to see this black hole from a great distance? Describe what happens to the view of the black hole as an observer approaches it, and as (s)he crosses the event horizon.

A roller coaster, shown in Fig. 6-38 (h1 = 30 m, h2 = 8 m, h3 = 22 m), is pulled up to point A where it and its screaming occupants are released from…

/in /by

A roller coaster, shown in Fig. 6-38 (h1 = 30 m, h2 = 8 m, h3 = 22 m), is pulled up to point A where it and its screaming occupants are released from rest. Assuming no friction, calculate the speed at points B, C and D.

Lecture 12 _____Special Relativity _______________ 1) 2) 3) 4) 5) 6) Does special relativity include gravity?

/in /by

Lecture 12 _____Special Relativity _______________ 1) 2) 3) 4) 5) 6) Does special relativity include gravity? What are the two principles of special relativity What is an example of a non-accelerating frame of reference? Can an object travel faster than the speed of light? What is spacetime? Length contraction is greater the faster the object moves. Does an object get thinner as well as shorter? 7) What is time dilation? 8) Jack is reading a book whilst traveling to Vega on his starship. He reads a page every 2 mins, this is t0. His starship is traveling at 0.8c . You are at rest and can see Jack reading his book, how long do you think it takes him to read a page if you time it using our own wristwatch, what is t? (t = 3.3min) 9) Jack”s spacecraft is 10m long i.e L0 = 10m. If he is traveling at 0.8c how long do you measure the starship to be? ( L = 6m) 10) A muons lifetime to= 2×10-6s. It is traveling at 0.95 C. How long, do we (on the ground) measure these muons to last?

Southern California and Georgia are located at the same latitude, and thus experience almost the same Coriolis force.

/in /by

Southern California and Georgia are located at the same latitude, and thus experience almost the same Coriolis force. Discuss two reasons why the summer temperatures in coastal locations in Southern California are cooler than coastal locations at the same latitude in Georgia.

1. What is the difference between interest rate risk and reinvestment rate risk? Which bonds will have each? 2. What is the difference between an

/in /by

1.      What is the difference between interest rate risk and reinvestment rate risk? Which bonds will have each?

2.      What is the difference between an upward and downward sloping yield curve?

3.      What is the relationship between interest rates and bond prices?

4.      When will a bond trade at a premium? A discount?

5.      What is a sinking fund provision and how does it affect the coupon rate on a bond?

6.      What is a warrant and how does it affect the coupon rate on a bond?

7.      What is a convertible bond and how does it affect the coupon rate on a bond?

Airnova Inc. has two types of bonds, Bond D and Bond F. Both have 8 percent coupons, make semiannual payments, and are priced at par value. Bond D…

/in /by

Airnova Inc. has two types of bonds, Bond D and Bond F. Both have 8 percent coupons, make semiannual payments, and are priced at par value. Bond D has 2 years to maturity. Bond F has 15 years to maturity.

Airnova Inc. is considering four different types of stocks. They each have a required return of 20 percent and a dividend of $3.75 for share. Stocks, A, B, and C are expected to maintain constant growth rates in dividends for the near future of 10 percent, 0 percent, and -5 percent, respectively. Stock D is a growth stock and will increase its dividend by 30 percent for the next four years and then maintain a constant 12 percent growth rate after that.

What is the expected capital gains yield?

Discuss the relationship among the various returns that you find for each of the stocks.

Continuing from the gas example, using the hypothesis terms, our H0: mu=1, H1: mu not equal to 1.

/in /by

1. Continuing from the gas example, using the hypothesis terms, our H0: mu=1, H1: mu not equal to 1. Let us assume the volume of gas dispensed for one supposed gallon, denoted as X, follows normal distribution with a known sigma=0.02. And you decide to use X_bar out of 30 measures of one supposed gallon as the test statistic, what are reject region and do not reject region using alpha=0.05, respectively? Draw the density function, identify the rejection non rejection region on the graph, and use excel for the calculation. Share your result in the discussion board.

If the gas station has secretly adjust the machine to mu=0.95 gallon. The sigma stays the same at 0.02. What is the power, i.e. 1 – beta, of your test in part 1? Draw the density function and use excel for calculation.