X-rays of wavelength λ = 0.140 nm are scattered from carbon.

A. What is the Compton wavelength shift for photons detected at angle (relative to the incident beam) of exactly 45.0 degrees?

Express your answer to three significant figures and include the appropriate units.

λ'- λ = ?

B. What is the Compton wavelength shift for photons detected at angle (relative to the incident beam) of exactly 120 degrees?

Express your answer to three significant figures and include the appropriate units.

λ'- λ = ?

C. What is the Compton wavelength shift for photons detected at angle (relative to the incident beam) of exactly 180 degrees?

Express your answer to three significant figures and include the appropriate units.

λ'- λ = ?

A solid non-conducting cylinder is evenly charged with a constant volume charge density, ρ (the charge is evenly distributed throughout the volume of the cylinder). The cylinder has a radius, R, and length, ℓ.

(a) Use Gauss’s Law to find an equation for the electric field strength, ???, at a radius, ? < ?.

(b) Use Gauss’s Law to find an equation for the electric field strength, ????, at a radius, ? > ?. Note: ? = ?⁄?????????, assume the cylinder is so long that you can ignore any electric field from the ends of the cylinder

There is double-slit experiment of slit spacing d and apart from the screen as L. Let’s think about the mth bright fringe. Here m is positive integer. Then expand the distance between the slit and screen as ? + ∆?. Find the phase different between the mth bright fringes at the original screen and expanded screen.

Assume your group made a breakthrough in designing square-shaped microprocessors on which square-shaped transistors can be placed. The size of one side your transistor measures 9 mm today. In three year’s time from now, your dream is to make your microprocessor more powerful without changing the microprocessor size, but being able to fit in more transistors. Using Moore’s Law as a guide, what should the size of one side of your transistor be, exactly three years from now, to fulfill your dream? Explain your answer.

PLEASE I NEED THE ANSWER IN 10 MINUTES

A block of mass M sits at rest at the top of a frictionless curved ramp of height h. After being released, the block is moving with speed 4v when it collides with a block of mass 1.5M at the bottom of the ramp. Immediately following the collision, the larger block has a speed 2v. The second block is attached to a vertical rope, and swings freely as a pendulum after the collision. The pendulum string has length L.

a) In terms of the other given variables, determine an expression for the height h.

b) Determine the speed and direction of the first block after the collision. Determine the maximum angle from the vertical to which the pendulum will rise after the collision.

c) Determine whether the collision was elastic or inelastic. Justify your answer!

d) If the small block had not hit the larger block, it would have slid onto a flat surface, moving a distance D before coming to rest. Determine the coefficient of kinetic friction between the small block and the flat surface.

2. The tentacle of a squid

By what percentage would a squid tentacle increase in length when a circumferential muscle contracts with a strain of 0.2?

Answer: The final length is 1.56 times the initial length, which is an increase of 56%. But how do I get to this answer? Please show work and formulas used to get the provided answers. Thank you!

A satellite of mass 180 kg is placed into Earth orbit at a height of 850 km above the surface.

(a) Assuming a circular orbit, how long does the satellite take to complete one orbit?

ans)_____h

(b) What is the satellite's speed?

7558.5 Correct: Your answer is correct. m/s

(c) Starting from the satellite on the Earth's surface, what is the minimum energy input necessary to place this satellite in orbit? Ignore air resistance but include the effect of the planet's daily rotation.

ans)________J

Describe the relationship between current and the speed of electron flow

For each of the following pairs of hypothetical data sets, decide which mean is larger and which standard deviation is larger. Explain your reasoning.

1. price of menu items at a fancy restaurant in Seattle

price of menu items at a fast food restaurant in Seattle

2. Weight of pet cats

Weight of pet dogs

3. Salary of teachers in Seattle

Salary of tech workers in Seattle

7.

1. Construct a time series plot. Comment on what type of pattern exists in the data.
2. Use a regression model with dummy variables as follow to explain sales: Qtr1 = 1 if quarter 1, 0 otherwise; Qtr2 = 1 if quarter 2, 0 otherwise; Qtr3 = 1 if quarter 3, 0 otherwise. Write out the model that you’ve estimated in equation form using the values of your estimates. Explain, in a sentence or two, what this model tells us.
3. Use a new, simple linear regression model with “t” as the only predictor where t = 1 for the 1^st quarter of year 1, t = 2 for the 2^nd quarter of year 1,…, t = 12 for the 4^th quarter of year 3. Write out the model that you’ve estimated in equation form using your values of the estimates. Explain, in a sentence or two, what this model tells us.
4. Use a new regression model with BOTH the dummy variable approach you created in part “b” and the time predictor, “t” that you created in part “c.” Write out the model that you’ve estimated in equation form. Explain, in a sentence or two, what this model tells us.
5. Compute (or take from Excel) the mean squared error (MSE) from each of your models from “b”, “c”, and “d.” (Hint: MSE is the same as MS Residual on the Excel output). Comment, in a sentence or two, on which of the models appears the best and why. Does this match up with the adjusted R^2 values of the models?
6. Using the model that you identified as the “best” in “e”, compute the quarterly forecasts for the year AFTER next (skip year 4, and tell me the forecasts for Q1, Q2, Q3, and Q4 of year 5). If you were going to tell the textbook store manager your forecasts, would you tell him/her exactly these numbers? Might there be a reason to explain your numbers slightly? What would you tell the manager?

1. When we experiment, we always want to think about sources of experimental uncertainty. In the lab "Measurement and Uncertainty" you learned about random errors and systematic errors. Let's think about some potential sources of uncertainty in this experiment.

   If the uncertainty is random, fill in R. If it is systematic, fill in S.

   In every trial, a student holds the picket fence so that it is tilted slightly to the left as it drops through the photogate.

   In the course of the experiment, the student holds the picket fence pretty close to vertical, but some times there is a slight tilt to either the left or right.

   One student group cannot find their picket fence. The decide to just drop a tennis ball through the photogate instead.

Entropy and the Sun The surface of the Sun has a temperature of 5500∘C and the temperature of deep space is 3.0K.Find the entropy increase produced by the Sun in one day, given that it radiates heat at the rate of 3.80 ×1026W

.

Part B

How much work could have been done if this heat had been used to run an ideal heat engine?

Metro Telcom Systems develops, sells, and installs computer systems. The company has divided its customer base into five regions, and it has 15 representatives who sell and install the company’s systems. The company wants to allocate salespeople to regions so that they maximize daily sales revenue. However, whereas the sales increase as the number of increases, they do so at a declining rate, according to the following nonlinear formula:

total sales = a - (b/x)

Following are the a and b parameters for daily sales in each region:

Because some of the regions are in urban areas and some are not, the representatives’ daily expenses will differ among regions. The company has a daily expense budget of $6,500, and the daily expenses (including travel costs) per representative for each region average $355 for region 1, $540 for region 2, $290 for region 3, $275 for region 4, and $490 for region 5. Formulate and solve a nonlinear programming model for this problem to determine the number of representatives to allocate to each region to maximize daily sales.

The famous Science Fiction author, Arthur C. Clarke, came up with the idea of a geosynchronous communication satellite in 1945, 20 years before the first one, the Intelsat I, was launched. This is a great example of Science Fiction becoming fact. If a satellite is geosynchronous then its period is one day. [So, it stays directly above one point on Earth's surface.] Let's say that we have a geosynchronous communication satellite in orbit around Earth. Calculate the altitude of the satellite (in miles).