Write a detailed summary about the working principle of Schottky diodes, photodiodes, solar cells and light emitting diodes (LEDs). You can use any source you want, but please include your sources in the “References” section of your summary!
In: Electrical Engineering
1. A quasar("quasi-stellar radio source") is a star like object. we would expect one of the wavelength emitted by a quasar to be about 656nm. How ever, we measure this wavelength to be 760nm. How fat are quasars moving relative to us. hint use doppler effect.
2.sunlight (400nm-700nm) going through a diffraction grating results in an interference pattern in the form of a ranbow,
a. which end of the spectrum, red or violet, is closer to the central maximum? explain.
b. what color is the central maximum? why?
In: Physics
Find and share an algorithm about red/black trees. Explain it, give 2 real-world usages, and discuss its efficiency.
In: Computer Science
Chapter6, performance management. Gather research State an interesting thesis (explain why you chose the topic you are researching and what you are hoping to prove, learn, uncover or disprove). Write the outline for your term paper (explain what you are writing about and why) Write the introduction (introduce the topic in depth) Write convincing paragraphs about what have learned. Write the conclusions you arrived at based on your learning. Write the references to your term paper Do not forget to edit and proofread your paper. five pages minimum in length.
In: Operations Management
Explain in detail the mechanism of breathing.Discuss briefly about respiration and acid base balance. Discuss briefly about the structural layers of alimentary tube.
In: Biology
Imagine that the State of Kentucky want s to create a new lottery similar to the PowerBall and Mega Millions that has better odds of winning. Kentucky assumes better odds of winning would draw more entries from both Kentucky and surrounding states because of the better odds of winning millions of dollars. Assume Kentucky plans to use 50 white balls and 30 red balls. In this mythical lottery, what is the probability with one entry of matching the five white balls drawn in any order (when a ball is drawn it is not replaced) and matching the one red ball drawn for the grand prize? Assume five white balls are randomly drawn out of a drum, there are fifty balls numbered from one to fifty. Then assume that one red ball is randomly drawn out of a drum, there are 30 red balls numbered from one to thirty.
In: Statistics and Probability
What is the current state of the US Economy in the last 20 years?” Your report should include the following: GPD, unemployment, inflation and Labor Force Participation Rate. Include a general statement about the state of the economy and then brief commentaries on each of the measures. You can use FRED graph for your comparison
In: Economics
If you graph the function y = 3x and y = 3 –x the graphs create a reflection about the y-axis. Explain why this occurs.
Now, if you graph the function y = 3x and y = -(3x) the graphs create a reflection about the x-axis instead. Explain why, in detail, the reflection changes from being about the y-axis to being about the x-axis.
Now, know the answers to #11 and #12, if we take the base function y = 3x what would cause a reflection about the origin? Explain why this happens.
In: Math
Why is it acceptable to use a clean, wet volumetric flask, instead of a clean, dry volumetric flask, when you are preparing your standard solutions by dilution? Explain in detail.
In: Chemistry
A red ball is thrown down with an initial speed of 1.3 m/s from a height of 27 meters above the ground. Then, 0.5 seconds after the red ball is thrown, a blue ball is thrown upward with an initial speed of 23.9 m/s, from a height of 0.7 meters above the ground. The force of gravity due to the earth results in the balls each having a constant downward acceleration of 9.81 m/s2.
1)
What is the speed of the red ball right before it hits the ground?
m/s
Your submissions:
2)
How long does it take the red ball to reach the ground?
s
Your submissions:
3)
What is the maximum height the blue ball reaches?
m
Your submissions:
4)
What is the height of the blue ball 2 seconds after the red ball is thrown?
m
Your submissions:
5)
How long after the red ball is thrown are the two balls in the air at the same height?
s
Your submissions:
6)
Which statement is true regarding the blue ball?
After it is released and before it hits the ground, the blue ball is always moving faster than the red ball at any given time.
After it is released and before it hits the ground, the blue ball is sometimes moving faster than the red ball at any given time.
After it is released and before it hits the ground, the blue ball is never moving faster than the red ball at any given time.
Your submissions:
7)
Which statement is true about the red ball?
The acceleration is positive and it is speeding up
The acceleration is negative and it is speeding up
The acceleration is positive and it is slowing down
The acceleration is negative and it is slowing down
In: Physics