The sun by definition is the star that is "the central body of the solar system, around which the planets revolve and from which they receive light and heat." This self-luminous star is not only the largest object in the solar system containing 99.8 percent of the total mass but is also a fundamental necessity to every human and living thing's life.

The position of the in relationship to the sun, Earth determines the time of the year or season. The problem states "assume that at this time of year the sinusoidal axis is at E = -5 degrees." From this statement, we could conclude that the time of year this problem took place when daylight is less than half of the day is the winter, since the sun shines longer in the summer then it does in the winter. So we assumed that + 5 degrees would equal the summer schedule, and - 5 degrees would equal the winter. The actual angle will require additional information. We concluded that the x, or t in this case, intercepts were points of the sunrise and sunset. When the line rises over the t-axis, then the sun was up or in other words daytime, and when the line goes below the t-axis, then the sun was not out or in other words nighttime.

The formula applied to the graph of this problem was Acos(Bx - C) + D, where A is the amplitude; B is the period; C is the horizontal shift; and D is the vertical shift. We found that the amplitude, as stated in the problem, is 60 degrees, and that the period is 24 hours. Since Period = 2p/B, B = 2p/24. The problem stated that the axis of the sinusoid is shifted to - 5 degrees, so D or the vertical shift equals - 5 degrees. To find the horizontal shift, we used the formula Starting Point = C/B. As given in the problem statement, the maximum angle of elevation occurs at 12:45 p.m. We took the time 12:45 p.m. where the maximum angle of elevation occurred and changed it to 12.75 because 45/60 is equal to .75/100. Therefore C= 12.75/ (2p24) or C = 17p/16. In conclusion, the...

...The Sun
(Star of the Family)
Planet word comes from Greek ,which means „wandering star“.
Sun is the heaviest among Solar System. If we take total mass of whole Solar System, the Sun would be 99.86% of the total.
Sun is a ball of hot,burning gases.
Sun is the nearest star to the Earth.
Sun is the source of all energy for life on Earth.
On the Sun's surface, there are dark patches known as sunspots. These are patches of gas that looks dark since they are cooler than their surroundings.
The light from the Sun takes approximately 8 minutes 20 seconds to reach the Earth.
At the surface of the sun,the temperature is about 6000 degree Celsius but near the center of the sun, the temperature is about 15 to 20 million degree Celsius.
Mercury
(Inner Most Planet)
Mercury is named after messenger of the Roman gods.
Mercury is the closest planet to the Sun.
Mercury has large variations of temperature during 24 hours.In day -time it is about 400 degree C and in the night time it falls down to -180 degree C.
Mercury is also the smallest planet and its orbit is the most not fully circular.
Mercury does not have any satellite.
There is no water or atmosphere on Mercury.
Mercury can be seen with naked eyes.
Mercury has shortest year among all planets. A year on Mercury lasts 88 days as it takes Mercury 88 days to orbit the...

...1. Which equation below represents the quadratic formula?
*a. -b±b2-4ac2a = x
b. a2+b2=c2
c. fx=a0+n=1∞ancosnπxL+bnsinnπxL
2. Which of the following represents a set of parallel lines?
a. Option one
b. Option two
*c. Option three
3. What is the definition of an obtuse angle?
*a. an angle greater than 90°
b. an angle equal to 90°
c. an angle less than 90°
4. Which formula below represents the area of a circle?
a. A=2πr
*b. A=πr2
c. A=π2r
d. A= √π
5.
What geometric term is represented by the image below?
a. a corner
*b. a cross-section
c. the circumference
d. the perimeter
11. Using the data in the table below, calculate the mean, or average, number of points scored by Player B.
| Game 1 | Game 2 | Game 3 | Game 4 | Game 5 |
Player A | 13 | 12 | 9 | 11 | 13 |
Player B | 12 | 11 | 15 | 20 | 12 |
*a. 14
b. 11.5
c. 13
d. 13.67
6. This instrument is commonly used by surveyors. It measures horizontal and vertical angles to determine the location of a point from other known points at either end of a fixed baseline, rather than measuring distances to the point directly. What is it called?
a. triangulator
b. binocular
c. tripod
*d. theodolite
7. What is the name of the missing shape in the flowchart below?
a. Acute
b. Obtuse
*c. Isosceles
d. Right
8. What category includes all of the items on the list below?
* Square
* Rectangle
*...

...The Sun
The sun is the largest object in the solar system. It is a middle-sized star and there are many other stars out in the universe just like it. Even though it is only a middle-sized star it is large enough to hold over 1 million Earth's inside if it were hollow. The temperature on the sun is far too much for any living thing to bear. On the surface it is 10,000 degrees Fahrenheit and the core is a stunning 27,000,000 degrees Fahrenheit. But don't worry we are over 90,000 million miles away, the sun could never reach us, at least not yet. The sun is a still a middle aged star and later in its life it will become a Red Giant. In this stage it will get bigger, and closer to us causing a temperature increase and most likely the end of the world as we know it, but this will not take place for quite some time.
But the sun is not our enemy, if it weren't for that big ball of burning gas there would be no life on this planet at all. We need its heat, its light, and its energy. Without these our planet would be frozen over like a big ice cube and there would be no signs or traces of life ever. In total amount the sun provides about 2 pounds of energy to us every day. Yes, that's right only 2 pounds. The sun evaporates water from the earth's lakes, streams, and rivers. It also heats the earth and cools the earth at the same time. Without the...

...The Sun
It’s crazy to think that the big ball of fire that we looked at through a telescope in the beginning of the semester used to be nothing more than a cloud of gas and dust. I mean this is the center of our universe and greatest source of energy we are talking about and it was just basically a bunch of tiny particles floating in space trying to find their place in the universe. It wasn’t till gravity hit that these particles started fusing together. As a result a star was born and began to rotate giving off light and heat becoming what is now known as the sun. Many stories have risen from the sun which is what is going to be discussed in this essay.
Over time the sun would be under much speculation as to what it was and how it got there. Ancient civilizations were among the first to marvel at the sun. As a matter of fact the sun was actually worshipped in many of these civilizations holding high status in their religious beliefs mostly as one of their creator gods. This can be seen by the Mayans and their sun god Kinich Ahau who they believe would shine in the sky all day and then turn himself into a jaguar at night to pass into the underworld which explains why the sun is not there at night. Because of their fixation of the sun the Mayans were particularly good at predicting astronomical occurrences such as eclipses, equinoxes, and apexes...

...Summer 2010-3 CLASS NOTES CHAPTER 1
Section 1.1: Linear Equations
Learning Objectives:
1. Solve a linear equation
2. Solve equations that lead to linear equations
3. Solve applied problems involving linear equations
Examples:
1. [pic]
[pic]
3. A total of $51,000 is to be invested, some in bonds and some in certificates of deposit (CDs). If the amount invested in bonds is to exceed that in CDs by $3,000, how much will be invested in each type of investment?
4. Shannon, who is paid time-and-a-half for hours worked in excess of 40 hours, had gross weekly wages of $608 for 56 hours worked. What is her regular hourly wage?
Answers: 1. [pic]
2. [pic]
3. $24,000 in CDs, $27,000 in bonds 4. $9.50/hour
Section 1.2: Quadratic Equations
Learning Objectives:
1. Solve a quadratic equation by (a) factoring, (b) completing the square, (c) the
quadratic formula
2. Solve applied problems involving quadratic equations
Examples:
1. Find the real solutions by factoring: [pic]
2. Find the real solutions by using the square root method: [pic]
3. Find the real solutions by completing the square: [pic]
4. Find the real solutions by using the quadratic formula: [pic]
5. A ball is thrown vertically upward from the top of a...

...the main chamber. As sun rises, a light of beam through roof-box
Describe what happens to the Sundagger on the solstices and equinoxes.
At the winter and summer solstice, and rise also at the equinoxes, sunlight shines between three giant rocks at the summit of Fajada Butte, throwing bright “sundaggers” onto an intricate set of spiral patterns carved on the rock behind.
What celestial event is Stonehenge aligned to? Describe what happens at Stonehenge on this day.
Stonehenge is most likely an observatory for following the sun through the seasons. It is a monumental shrine to the sun. Stonehenge’s heel stone is aligned to the summer solstice sunrise. The sun rises just over the heel stone position of the monument on the summer solstice.
Why do archeoastronomers suspect that Stonehenge's Heel Stone had a missing partner stone?
The sun used to hit right next to the Heel Stone and that didn’t make sense. Also it was the only stone that was by itself when all other stones in the Stonehenge were in pairs
What causes the Sun to rise and set every day?
Due to Earth’s 24 hour eastward spin around its polar axis, the sun moves westward across the sky; it rises in the east, reaches its highest point at noon, then sets in the west.
What is the local time for an observer who is directly facing the opposite side of the sky from Sun?
local midnight
local time...

...determine the bulk velocity of the stream using Equation 1.
(Eqn. 1)
Where is the flowrate in m3/s and A is the cross-sectional area of the pipe. To find the flowrate, we multiply the flowmeter reading by the constant
and convert from gallons to cubic meters as follows:
The cross sectional area of the 7.75mm pipe is
Plugging these values into Equation 1, we obtain a bulk velocity .
With the bulk velocity value, we can find the Reynolds number of the flow using Equation 2.
(Eqn. 2)
Plugging in known values to Equation 2, we find:
The experimental friction factor of the pipe can be calculated as:
(Eqn. 3)
Using the pressure drop for the chosen sample from smallest smooth copper pipe across the known distance L, we obtain an experimental friction factor
The theoretical friction factor for smooth pipes can be calculated with the Petukhov formula:
(Petukhov Formula)
Using this formula with our calculated Reynolds number yields a theoretical friction factor of
Because Pipe 4 is a rough pipe, this Petukhov Formula does not apply and we must perform additional sample calculations. From the first data point for the fourth pipe we obtain the following flow properties:
Using Equations 2 and 3 we can find the following Reynolds number and experimental friction factor:
The theoretical friction factor for a rough pipe can be found by calculating the parallel...

...Calorimetry Equations
Monday, October 28, 2013
12:00 PM
TOOL BOX
q=mc∆T
Water sp. Heat
Calorimetry : the measurement of energy (calorie)
Calorimeter : tool used to measure energy by Measuring the change in temperature
Equation :
q=mc∆T
What is the difference between Calorimetry and Calorimeter?
Quantity of
Energy (Cal.)
Mass
(g)
Specific heat (given) (Cal/g)
Change in temperature (℃ )
(End-short)
What is the dance that we learned in class today about our new equation?
Name all the Specific heat type and what they vary? ( if that makes sense)
Specific heat
• Unique to every substance
• Amount of energy required to increase 1g of substance by 1℃
High specific heat
• Needs large amount of energy to change temp ex. Water
Low specific heat
• Changes temp. easily ex.metal
Summary:
In today's class we talked a about the equation(s) of calorimetry. Calorimetry is the measurement of energy , and Calorimeter Is a tool used to measure energy by measuring the change in temperature. We also learn about the Specific heat, high specific heat, and low specific heat. But the main thing is that the new equation we learn today is
q=mc∆T
.Calorimetry
Sunday, October 27, 2013
6:35 PM
Calorie : Unit of energy Metry : Measurement
Calorimetry :
• Measurement of energy
Energy : The ability to do work...

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