Friday
May 22, 2015

Posts by Angie


Total # Posts: 1,232

Physics
Mars has a moon (Phobos) with an orbital period of 7.67 hours and an orbital radius of 9.4x106 m. Use Kepler’s 3rdLaw to estimate the mass of Mars.
November 20, 2013

Physics
A 25 g bullet is fired from a rifle with a barrel of length 65 cm. The bullet starts from rest at one end of the barrel and experiences an average force of 1200 N due to the expanding gases as it moves down the length of the barrel. a) Calculate the work done on the bullet by ...
November 20, 2013

Physics
Two blocks are attached together with a piece of string. Block #1 (3 kg) slides along a rough horizontal surface and block #2 (2 kg) hangs off the end of the surface. If the blocks accelerate at 2.5 m/s2 in the directions shown, determine the tension in the string and the ...
November 20, 2013

History
What is the significance of the black stone and where is it located? How did the caravan trade benefit the Arabian peninsula in the fifth and sixth centuries and why did the trade routes change during this time?
November 13, 2013

History
Identify the changes in the arabian peninsula during the 600's
November 13, 2013

Language Arts
Can you explain this quote for me???? "weathered many bitter nights"
November 13, 2013

Language Arts
wait sorry I mean Why is he referred to as "the strategist Odysseus'? To this the strategist Odysseus answered: “My lady goddess, here is no cause for anger. My quiet Penelope-how well I know- Would seem a shade before your majesty, Death and old age being ...
November 13, 2013

Language Arts
To this the strategist Odysseus answered: Why is he referred to as "the strategist Odysseus'? “My lady goddess, here is no cause for anger. My quiet Penelope-how well I know- Would seem a shade before your majesty, Death and old age being unknown to you, While ...
November 13, 2013

Language Arts
I got it thank you very much :)
November 13, 2013

Language Arts
What does this comparison tell you? A gull patrolling between the wave crests of the desolate sea will dip to catch a fish, and douse his wings; no higher above the whitecaps Hermes flew
November 13, 2013

History (Check Answers)
True or False. 1. Raiding one’s enemies was known in the Quran as the “struggle in the way of God” or jihad. 2.The courage of the Arab soldiers was enhanced by the fact that they had superior weapons to most of their enemies. 3. Mu’awiyah moved the capital ...
November 11, 2013

History
True or False? The general mu'awiyah was known for one outstanding trait: he used more force than necessary whether it was needed or not
November 11, 2013

Science
the gravitational force between two objects is proportional to the blank of the distance blank
November 5, 2013

Science
Fill in the blank- The gravitational force between two objects is proportional to the ______ of the masses of the objects.
October 30, 2013

Language Arts
Think of some examples of how you change the following elements of a conversation in a formal situation. Vocabulary Pronunciation Abbreviated words Idioms Also give two examples of different situations that require you to use the formal language.
October 26, 2013

physics
A novice golfer on the green takes three strokes to sink the ball. The successive displacements of the ball are d1 = 4.06 m to the north, d2 = 2.05 m northeast, and d3 = 1.15 m at 30.0° west of south (see the figure). Starting at the same initial point, an expert golfer ...
September 22, 2013

Finance
On August 1, 2005 you invested $3,000 into a mutual fund. You then invested $1,000 into that same mutual fund on the first day of August for each of the years 2006 through 2013. You averaged a 7.25% annual rate of return on your investment in this mutual fund. What is the ...
September 20, 2013

science
An astronaut of mass 120 kg recedes from her spacecraft by activating a small propulsion unit attached to her back. The force generated by a spurt is 30 N. Show that her acceleration is 0.25 m/s2.
September 15, 2013

Paleolithic People
Describe the types of shelter and housing that were used by Paleolithic peoples
August 28, 2013

World History Honors
Thank you so much!
August 28, 2013

Military History
Two questions: 1. By 1864, only two Confederate ports remained open and actively participating in blockage running. One of these was: Mobile Charleston Savannah Boston 2. What percentage of Union army enlistments came from the draft? 9 13 15 10
August 28, 2013

Military History
Who did Lincoln promote to overall Western commander on March 11, 1862? A. Henry Halleck B. William Halsey C. Percy Hobart D. Nathan Forrest
August 28, 2013

Chemistry
The reaction b/t H2 and O2 yield water vapor and has a change of heat =-484kJ.Ho much PV work is done and what is the value of the change of E in kJ for the reaction of 0.50 mol of H2 with 0.25 mol of O2 amd atmospheric pressure of 1.00 , the volume change is -5.61.
June 30, 2013

math
the average middle distance runner at a local high school runs the mile in 4.5 minutes with a standard deviation of 0.3 minute the percentage of a runners that will run the mile in less than 4 min is %
June 30, 2013

algebra
An object 4.2 feet tall casts a shadow that is 12.6 feet long. How long in feet would the shadow be for an object which is 15.3 feet tall?
June 9, 2013

Grammar
I'm going to high school next year so I wouldn't have her as a teacher again in the future.
June 5, 2013

Grammar
Thank you so much! :)
June 5, 2013

Grammar
I want to give my Algebra teacher a letter to show how much her effort on helping me learn made me appreciate her and I just want to know if this sounds okay. Dear (my teacher's name), I just wanted to take some time to express how much I enjoyed being in your class this ...
June 5, 2013

math
Triangles ABC and DEF are similar. The similarity ratio of to is , AB = 40, BC = 25, and AC = 35. What is the perimeter of ?
May 22, 2013

accounting
Customer relations are usually part of:
April 19, 2013

Global History
How did geography both help and hinder the peoples of Africa?
April 17, 2013

Physical Science
The amount of air above you decreases or increases if you increase or decrease in elevation. The less air above you, the less air pressure pushing down on you.
April 17, 2013

Math
I don't get this question! Please help. A pizza is divided into 8 slices. Diana eats 1/16 of the pizza in 5 minutes. At this rate, how many slices can she eat in one hour?
April 3, 2013

Algebra
A company has two printers. Printer A prints a pages per minute, and Printer B prints b pages per minute. When Printer A prints for 3 minutes and Printer B prints 5 minutes, a total of 70 pages are printed. When Printer A prints for 6 minutes and Printer B prints for 9 minutes...
March 31, 2013

Algebra
Using the substitution method, what is the value of a in the solution to the system of equations below? a=3b+7 4a+9b=70
March 31, 2013

Social Studies
To break away from
March 28, 2013

Physics
What are two types of waves
March 25, 2013

Forces (Science)
Describe 2 contact and 2 non-contact force examples. Please and thank you very much. :)
March 22, 2013

Forces (Science)
What slope would a person have on a distance-time graph if they were speeding, slowing down, or not moving at all?
March 22, 2013

Chemistry (2 questions)
1. What kinds of bonds will most likely form from groups 1,2,3,6,7, and 8 on the periodic table? 2. What kinds of bonds will most likely form from group 4 on the periodic table?
March 22, 2013

maths
WHATEVER
March 20, 2013

maths
EIGHT DAYS
March 20, 2013

maths
12 MEN AT A CAMP HAVE FOOD TO LAST 10 DAYS. IF 3 MEN JOIN THE CAMP.HOW LONG WILL THE FOOD LAST?
March 20, 2013

chemistry
What is the amount of H2O that can be produced by combining 89.7 of each reactant in the following equation: 4NH3(g) + 5O2 (g)----> 4NO(g) + 6 H2O(g)
March 15, 2013

pos and neg inf limits
sorry what is O, i dont understand
March 13, 2013

pos and neg inf limits
Help with this please?
March 13, 2013

pos and neg inf limits
x-> + infinity (x-sqrt(x^2-3x)) for this i got 3, because after it is rationalized i got 3x/x= 3 x-> - infinity (3x^2+4x+2)/(5-x+x^3) i got 3/x , and zero as the final answer are they right. thank you.
March 13, 2013

Absolute Value and Limits
Help with this one ?
March 13, 2013

Absolute Value and Limits
solve for limits of 1+ and 1- for this function: (x^2 + abs (x-1) - 1)/ abs (x-1) i dont know how to simplify abs. value expression times polynomial. can someone please help.
March 13, 2013

calculus
i dont get why you would multiply the numerator by that. please explain
March 13, 2013

calculus
as x-> + infinity (limit) 3x^4-2x^2/x^4+5x^2 i got positive infinity. is this right
March 13, 2013

Calculus
I know how to do this problem, but I'm stuck at the arc length differential. Set up an integral for the arc length of the curve. (Do not evaluate the integral) x=y^2ln(y), 1<y<2 dx/dy = 2yln(y) + y ds= sqrt (1 + (2yln(y)+y)^2 so far I have sqrt (1 + 4y^2ln(y) + 2[2y^...
February 28, 2013

Science
in what ways do you think earth's moon may be similar to mercury
February 23, 2013

math $$
k ty i have 4 more *so sorry* Carson wanted to make a cylindrical pillow for his mother's b-day the pillow was to be 15 inches long with a diameter of 6 inches and would be filled with stuffing. determine how many cubic inches of stuffing carson will need to make the ...
February 21, 2013

math $$
k ty i have 4 more *so sorry* Carson wanted to make a cylindrical pillow for his mother's b-day the pillow was to be 15 inches long with a diameter of 6 inches and would be filled with stuffing. determine how many cubic inches of stuffing carson will need to make the ...
February 21, 2013

math $$
ok but that is not one of the answers and it can't be reduced
February 21, 2013

math $$
ty sooooo much another question (sorry about all these just trying to get this done and learn it before tom.) Jennie calculated the probabilities of various events involving a coin. What is the probability of a coin landing on heads at least twice when the coin is flipped ...
February 21, 2013

math $$
sorry knights my computer was messying up so...
February 21, 2013

math $$
The graph of 5x-2y=10 intersects the x-axis and y-axis what are the order pairs for these two points of intersection? A.(2,0) and (0,5) B.(2,0) and (0,-5) C.(-2,0) and (0,5) D.(-2,0) and (0,-5)
February 21, 2013

math $$
again sorry did it again
February 21, 2013

math $$
ty sooooo much another question (sorry about all these just trying to get this done and learn it before tom.) Jennie calculated the probabilities of various events involving a coin. What is the probability of a coin landing on heads at least twice when the coin is flipped ...
February 21, 2013

math $$
The graph of 5x-2y=10 intersects the x-axis and y-axis what are the order pairs for these two points of intersection? A.(2,0) and (0,5) B.(2,0) and (0,-5) C.(-2,0) and (0,5) D.(-2,0) and (0,-5)
February 21, 2013

MATH PLZ
ty both so much
February 21, 2013

MATH PLZ
Which is true when a negative nuber is subtracted from a positve number? A.the difference is always 0 B.the difference is always positive C.the difference is always negative D.the difference could be negative or positive *i need examples to
February 21, 2013

Math plz fast i really need it
i don't get it can you explain it better plz
February 21, 2013

Math plz fast i really need it
neither mind but can u help with the second
February 21, 2013

Math plz fast i really need it
okay but can you expain it better plz
February 21, 2013

*math*
The graph of 5x-2y=10 intersects the x-axis and the y-axis what are the ordered pairs for these two pairs of intersection A.(2,0) and (0,5) B. (2,0) and (0,-5) C.(-2,0) and (0,5) D. (-2,0) and (0,-5)
February 20, 2013

Grammar
one last question sorry: Which is correct? (1) He took the news bad. (2) He took the news badly.
February 19, 2013

Grammar
what prefix turns the word "town" into a word meaning "center of town"?
February 19, 2013

early childhood education
A poem that does not ryme is called: a. free verse. b. narrative. c. a lyric. d. nonfiction.
February 15, 2013

solar system
which planet has enough gravity to hold on to most gases?
February 13, 2013

space science
What other challenges do you think there would be for engineers designing a spacecraft to travel to mercury?
February 7, 2013

math
Yes it is
February 7, 2013

social studies
people how developed th caste system
January 14, 2013

Math
Oh okay thank you
January 7, 2013

Math
When we are plotting something, does the y axis go first or the x axis?
January 7, 2013

Psychology
Sorry....B should say B. psychodynamic therapy and humanist therapy D. family intervention therapy and behavioral skills training
January 3, 2013

Psychology
Gayla's treatment for bulimia and binge eating has been highly successful. It is most likely that her treatment involved a combination of: A. cognitive therapy and behavior therapy B. psychodynamic therapy and behavioral skills training C. systematic desensitization and ...
January 3, 2013

psychology
At the age of four months, Zach was excitable and fearful. His dad taped a colorful picture beside the changing table to entertain Zach during diaper changes. Zach overreacted to the picture and became agitated and nervous. During his school years, Zach is most likely to: A. ...
January 3, 2013

Math
6/2(1+2)=
January 2, 2013

psychology
To ensure that the memory of a child is accurate, it is important to: A. ask him to draw a picture of the event B. reward him for telling what happened C. reassure him that his friends have had the same experience D. avoid the use of leading questions or suggestion
January 2, 2013

Math
A gas tank is 1/4 full. Abby adds 4 gallons and now it is 5/8 full. How many gallons does the tank hold?
December 11, 2012

Math
The line L has equation of 4x + 3y = 7. Find the equation of the line perpendicular to L which passes through the point of intersection of L and the y-axis. Give answer in ax + by + c = 0.
December 9, 2012

statistics
What is the z-score for a test score of 440 in which the test has a normal distribution of N(400, 50)?
December 4, 2012

Advanced Accounting
GAAP rules are clear about when a company needs to consolidate or not, but companies tend to find loopholes to circumvent this rule. GAAP clearly indicates that consolidated financial statements are “usually necessary for a fair presentation when one of the companies in ...
December 3, 2012

Advanced Accounting
Mr. White (invested $20,000) and Mr. Black (invested $10,000) are in a partnership to run a marketing firm. They share profits and losses in the ratio of 2:1, which is also the ratio of their initial investment in the business. Mr. White manages the office but Mr. Black gets ...
December 3, 2012

Advanced Accounting
Mr. Right and Mr. Wrong own an antique store in a partnership. They share profits and losses equally and receive an annual salary of $50,000, as per the partnership agreement. Mr. Right travels the country buying antiques. Mr. Wrong manages the store. From time to time, they ...
December 3, 2012

Science
The process of changing free nitrogen gas into a usable form of nitrogen is called?
December 2, 2012

Algebra
q+2/5 = 2q-11/7
December 2, 2012

physics
The hot reservoir for a Carnot engine has a temperature of 926 K, while the cold reservoir has a temperature of 441 K. The heat input for this engine is 3730 J. The 441-K reservoir also serves as the hot reservoir for a second Carnot engine. This second engine uses the ...
December 1, 2012

physics
The wattage of a commercial ice maker is 226 W and is the rate at which it does work. The ice maker operates just like a refrigerator and has a coefficient of performance of 3.90. The water going into the unit has a temperature of 15.0°C, and the ice maker produces ice ...
December 1, 2012

physics
After 6.00 kg of water at 80.4 oC is mixed in a perfect thermos with 3.00 kg of ice at 0.0 oC, the mixture is allowed to reach equilibrium. When heat is added to or removed from a solid or liquid of mass m and specific heat capacity c, the change in entropy can be shown to be...
December 1, 2012

Physics HELP!!
A loudspeaker is placed between two observers who are 113m apart, along the line connecting them. If one observer records a sound level of 51.8dB and the other records a sound level of 75.8dB, how far is the speaker from each observer? Enter the longest distance first.
November 30, 2012

Physics
A 71.4cm long tube has a 71.4cm long insert that can be pulled in and out. A vibrating tuning fork is held next to the tube. As the insert is slowly pulled out, the sound from the tuning fork creates standing waves in the tube when the total length L is 77.5cm, 126.0cm, and ...
November 30, 2012

Math
A microscopic worm is eating its way around the inside of a spherical apple of a radius of 6 cm. What is the probability that the worm is within 1 cm of the surface of the apple? ( hint: v=4/3pier^3 where r is the radius)
November 25, 2012

Math
two dice a. find the odds in favor of the following events: 1 getting a sum of 7 2 getting a sum greater than 3 3 getting a sum that is an even number b. find the odds against each of the events in part a
November 24, 2012

Math
a spinner is spun whose central angles are all 45 degrees. #'s 1-8 on wheel. What is the probability that it lands on 5 if you know the following? a. it lands on an odd # b. it lands on a # greater than 3 c. it does not land on 7 or 8 d. it lands on a factor of 10
November 24, 2012

Math
2 dice are thrown. a. find the odds in favor of the following events: 1. getting a sum of 7 2. getting a sum greater than 3 3. getting a sum that is an even number b. find the odds against each of the events in part a
November 24, 2012

Math
Publishers records state: 20% of books published break even. 30% lose $1000. 25% lose $10,000. 25% earn 20,000. When a book is published, what is the expected income for the book?
November 24, 2012

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