Questions Asked on
July 11, 2013

physic
A satellite used in a cellular telephone network has a mass of 2010kg and is in a circular orbit at a height of 770km above the surface of the earthTake the gravitational constant to be G = 6.67×10−11N⋅m2/kg2 , the mass of the earth to be me =
asked by cuzer 
Trigonometry
a flagpole 25 feet tall stands on a top of a building. from a point in the same horizontal plane with the base of the building. The angle of elevation of the top and the bottom are 61°30' and 56°20' respectively. How high is the building?
asked by Paul 
Math important!!!
Samantha is a baseball player, she has a batting average of 0.280. a) find the probability that at least 3 hits in her next 5 times at bat (12 marks) b)what is Samantha's expected number of hits in her next 10 times at bat? (3 marks)
asked by Celina 
physic
Consider the earth following its nearly circular orbit (dashed curve) about the sun.(Figure 2) The earth has mass mearth=5.98×1024kg and the sun has mass msun=1.99×1030kg. They are separated, center to center, by r=93millionmiles=150millionkm.
asked by mert 
Calculus
The percentage of alcohol in a person's bloodstream t hr after drinking 8 fluid oz of whiskey is given by the following equation. A(t) = 0.26te0.3t , (0 t 12) (a) What is the percentage of alcohol in a person's bloodstream after 1/2 hr? After 6 hr? (Round
asked by Shan 
Math
A farmer wishes to put a fence around a rectangular field and then divide the field into three rectangular plots by placing two fences parallel to one of the sides. If the farmer can afford only 1600 yards of fencing, what dimensions will give the maximum
asked by Kelsie 
Statistics
1. z test 2. t test for independent samples, and 3. t test for dependent samples Hi! I really need help with this statistics. Its just that you suggest one psychological research question that could be answered by each of the following types of statistical
asked by Luah 
science
Which gas is a source of natural groundwater pollution? A. Oxygen B. Radon C. Hydrogen D. Carbon i think its a
asked by SELENITAA 
Math
An object is projected vertically upward from the top of a building with an initial velocity of 144 ft/sec. Its distance s(t) in feet above the ground after t seconds is given by the function s(t) = −16t2 + 144t + 120. A) Find its maximum distance above
asked by Mack 
Consumer Math
How many cement blocks are needed to construct a wall 0.5 ft. thick, 6 ft. high, and 60 ft. long if it takes 10 standard cement blocks to make 1 cubic foot of wall?
asked by Athena 
algebra 2
Suppose y varies jointly with x and z, and x = 4 when y = 8 and z = 2.What is the value of x when y = 12 and z = 3? A. 4 B. 4 C. 15 D. 9
asked by Sam 
Chemistry
Are these reactions Exothermic or Endothermic? How do I know? 1.) Mg(OH)2(s)Mg+2(aq) + 2OH(aq) Saw solution lighten from medium pink to very light when heated in hot water bath. (It had phenolphthalein drop for indicator.) 2.) HSO4(aq)+
asked by Ann 
Chemistry AP
I'm using Zumdahl 7th Edition Chemistry Book and I'm having trouble with some practice problems in the first chapter. Here are a few: 87: Sterling silver is a solid solution of silver and copper. If a piece of a sterling silver necklace has a mass of 105.0
asked by Emily 
physic
A Ferris wheel 26.0m in diameter rotates once every 15.0s What is the ratio of a person's apparent weight to her real weight at the top?
asked by cuzer 
readings
In his 1992 speech, how did Mikhail Gorbachev view the impact of the global communications revolution on the people of lessdeveloped countries?
asked by luc 
History
The creation of minority group status largely depends on: A. The nature of the contact situation B. The size of the dominant group C. Whether the dominant group is assimilationist or pluralistic D. The degree
asked by Melissa 
math
3 out of every 1,000 bulbs produced are defective. If 5,000 bulbs are produced, how many would you expect to be defective
asked by Anonymous 
Math
A doorway has the shape of a parabolic arch and is 16 feet high at the center and 8 feet wide at the base. If a rectangular box 12 feet high must fit through the doorway, what is the maximum width the box can have?
asked by Maya 
Geography
Which of the following statements about Southern South America is true? A. Paraguay is the smallest country of the subregion. B. Influence of Roman Catholicism has sharply declined in Argentina. C. The Argentine economy was devastated by the end of 2001
asked by Anonymous 
physics
75 kg block is dropped from a height of 6 m. How much kinetic energy does it have when it has fallen halfway?
asked by daviaa 
Math(angle of depression) i need help please..
An observer on top of a cliff 25m above sea level views a boat on the sea at an angle of depression of 35. How far is the boat from the foot of the cliff?
asked by Alexander 
Trigonometry
a flagpole 25 feet tall stands on a top of a building. from a point in the same horizontal plane with the base of the building. The angle of elevation of the top and the bottom are 61°30' and 56°20' respectively. How high is the building?
asked by Paul 
Calculus
In a study prepared in 2000, the percentage of households using online banking was projected to be f(t) = 1.7e0.71t , (0 t 4) where t is measured in years, with t = 0 corresponding to the beginning of 2000. (Round your answers to three decimal places.) (a)
asked by Shan 
Geography
1. In Brazil, the indigenous population was around 3.5 million before the arrival of Europeans. Today, the indigenous population is around A. 1.5 million. B. 500,000. C. 2 million. D. 200,000. My answer is A
asked by Anonymous 
Computers C++ (2)
Thank You Steve For All The Help! (If its you helping me with this one) 1.) Consider the following array definition: int values[ 5] = { 4, 7, 6, 8, 2 }; What does the following statement display? cout
asked by Thomas 
Chemistry
Give three examples each of household items that have: a. different structures and exhibit different properties b. same chemical makeup composition but a different structure, hence, different properties c. the same properties but with different chemical
asked by Eliza 
chemistry
What reagents would I have to use to convert a trans alkene into a cis alkene? example: trans3heptene to cis3heptene My thoughts: I feel as if I would use Br2/CCl4 first to create a dihalide, then possibly 2NaNh2 and finally a lindlar catalyst to end
asked by chelsea 
Business Statistics
You wish to learn the proportion of MBA students that are female within 3%, and with 98% confidence. How large of a sample should you get?
asked by Tesa 
Math
Flights of leaping animals typically have parabolic paths. The figure illustrates a frog jump superimposed on a coordinate plane. The length of the leap is 9 feet, and the maximum height off the ground is 3a feet. Find a standard equation for the path of
asked by Kelsie 
Computers C++
1.) Consider the following array definition: int values[ 5] = { 4, 7, 6, 8, 2 }; What does the following statement display? cout
asked by Thomas 
Chemistry
At 10C zinc reacts with 2.0M sulphuric acid to produce 17 mL hydrogen gas in 20 s a) what is the rate of this reaction? b)What volume of hydrogen might be produced in 20 s at 30C?
asked by Tash 
math
A. One board is onethird the length of another. Six times the sum of the length of the short board and 10 is equal to the length of the longer board decreased by 11 inches. Find the length of the longer board. B. The length of a rectangle is 4 feet more
asked by gary 
Chemistry
A 0.355 g sample of a solid, monoprotic acid having a molar mass of 121 g/mol requires 18.47 mL NaOH for neutralization. Calculate the molarity of the NaOH solution. I got 0.159 M NaOH
asked by <3 
English
Hey, just look up the grammar, tenses and wheter I use the right words, ok? It is for an oral excercise so the spelling isen't important. Thanks and now the text: Mandy: Good Morning and welcome to the morning show with me: Mandy Melrose! Today I wanna
asked by Julie 
Physics
A 3 kg object falls from a height of 10 m. What is its velocity just before it hits the ground? How would this problem differ if the object falling from a height of 10 m only had a mass "m"?
asked by Van 
maths
Find max and min values of y=sinx sin2x
asked by mahesh 
physics
A car (mass = 1150 kg) is traveling at 26.7 m/s when it collides headon with a sport utility vehicle (mass = 2030 kg) traveling in the opposite direction. In the collision, the two vehicles come to a halt. At what speed was the sport utility vehicle
asked by rodney 
Physics
When you're riding a city bus sometimes there are no seats left and you have to stand. Why are there vertical and horizontal metal hand bars on the bus? Use the concept of inertia and Newton's 1st law
asked by Jai 
Algebra 2
I need help...especially finding out the time... At 1:00 a.m., a homicide detective found the reading of a corpse's body temperature to be 88 degrees Fahrenheit. One hour later, the body temperature is 83 degrees Fahrenheit. If the body has been in a 74
asked by Anonymous 
Physics Experiment
In the experiment Standing Waves,if you continue to lwer the water level after recording l(m) at the first sound resonance at fixed tuning fork frequency, you will hear the sound again but sound gets louder (second resonance). At this point, by what factor
asked by khadijah 
gen physics
A 152 kg boat is at rest in a calm lake at the end of a dock. A 85.6 kg person running down the dock leaps into the boat with a horizontal velocity of 4.58 m/s. Ignore all effects of friction and resistance due to the water. a) Find the kinetic energy of
asked by rodney 
Physics
A 3 kg object falls from a height of 10 m. What is its velocity just before it hits the ground? How would this problem differ if the object falling from a height of 10 m only had a mass "m"?
asked by Van 
Chem
Give three examples each of household items that have: a. different structures and exhibit different properties b. same chemical makeup composition but a different structure, hence, different properties c. the same properties but with different chemical
asked by Eliza 
Statistics
Post a null hypothesis that would use a t test statistical analysis.. Use the same hypothetical situation taken in the t test hypothesis, and turn it into a null hypothesis using a oneway ANOVA analysis and a twoway ANOVA.
asked by Rey 
Law and Ethics in medicine
Elizabeth says duty of care is the obligation health care workers have toward patients. Randy says professional etiquette is the obligation health care workers have toward patients. Who is correct? A. Only Randy is correct B. Neither is correct C. Only
asked by Kim 
Physics
When you're riding a city bus sometimes there are no seats left and you have to stand. Why are there vertical and horizontal metal hand bars on the bus? Use the concept of inertia and Newton's 1st law
asked by Jai 
math ,geometry
John is building a fence that is 6 feet high and 18 feet wide to put around his garden. He has two sizes of boards that he can use. One is 2 feet by 6 feet and the other is 4 feet by 6 feet. John can put the boards either horizontally or vertically and he
asked by GT 
PE
If 1 liter of the Pentland field formation water (see lecture powerpoint) is mixed with equal volume of seawater and noting that BaSO4 solubility under that condition is 2 mg/liter, how much BaSO4 precipitate would be there? (Hint: watch out for which ion
asked by Jenny 
statistics
The same calculus exam has a normal distribution with a mean of 76 and a standard deviation of 6. Find the percentage of students that scored between 65 and 90.
asked by Anonymous 
maths
find the circumference of a circle whose radius is: 1. 8 inches 2. 4 inches
asked by leena : aww maths !!! help me 
Algebra
Simplify the square root of of the fifth root of 64q^8v^6 or (√^5√64q^8v^6).
asked by Kim 
readings
Rather than promoting goods and manufactures, the 1939 New York World's Fair sought to emphasize
asked by luc 
writing
1)Al:(who's,whose)car is in my parking space? 2)Ben:(it's,its)Fred's. 3)Al:(know,no,his car is red.It might be the Jones'. 4)Ben:(their,there,they're)car is green.(here,hear)come Bob and Tony. 5)Tony:Hi!Isn't my (knew,new)car(grate,great)?
asked by Nick 
theory to practice
Which of the following is an obstacle to learning for a begining mover? A.Knowledge of what elements of the movememts to focus on. B. Chronic indifference characteristic between birth and age three. C.shorter time to monitor perceptual input from the
asked by cloie 
Algebra 2...
3x6 >= 2 Is this correct? x>=16/3 x
asked by Anonymous 
Finance
The balance sheet for the Raider Company shows Total assets of $12,900 financed by $3,000 of Debt and $9,900 of Stockholders' equity. For the Target Company Total assets of $4,900 are financed by $1,800 ofDebt and $3,100 of Stockholders' equity.
asked by Me 
sociology
using feminism, show how Facebook has made an impact on today's technologicallyadvanced society.
asked by rita 
grammar
what i do and i want to do
asked by charlene 
since
where does fennec fox live
asked by azan sameeh 
Physics
120 grams of metal at 88 degree celcius is poured into a 70 grams isolated cup contains 250 grams of water at 16 degree celcius. The final temperature of the mixture is 17.5 degree celcius. Determine the specific heat capacity of the metal?
asked by vench 
Excel Filtering
Hi I'm trying to filter data between 3 different columns. I want it so the data filtered so data in column a is smaller than column b, which is smaller than column c. I try to filter but it only allows me to use filter criteria from the individual column.
asked by Dom 
Math
Convert each improper mixed number to a whole number or a mixed number: (A) 24 2/2 (b) 7 4/2 (c) 2 5/3 (d) 9 5/4 (E) 36 3/2 (f) 32 4/3 (g) 3 3/3 (h) 10 8/8
asked by Jasmine 
Calculus
Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y. Then find the area of the region. 2y = 4(x^(1/2)), y=4, and 2y +2x = 6 I keep getting an area around 21.3 but it is incorrect. Am I close? Thank you!
asked by Donna 
heeeeeeelp math
For every positive integer n, consider all monic polynomials f(x) with integer coefficients, such that for some real number a x(f(x+a)−f(x))=nf(x) Find the largest possible number of such polynomials f(x) for a fixed n
asked by lin 
Medical Transcription
I need to find someone who knows how to do Electronic Medical Records so I can proceed with my lessons. Thank you.
asked by Lisa 
MATH
A data set has the following points: (0, 2), (4, 1), (6, 0) The slope of the linear regression line is 0.32. Find the yintercept of the linear regression.
asked by J 
Math 116
1.IN a given training week, a swimmer completes 1/4 mile on day one, 2/5 mile on day two, and 3/7 mile on day three. How many total miles does the athlete swim in the given week? a. 151/140 miles b.3/70 miles c.3/8 miles d.37/35 miles 2. The temperature on
asked by Queta 
Written Communication
He was arrested for A. adroitness. B. philanthropy. C. bigamy. D. misogyny.
asked by Anonymous 
social studies
10. Heinz is a recent immigrant from Germany. Which of the following will NOT contribute to his feeling of being American? (Points : 1)
asked by teri 
PreAlgebra
c5/4=3 Please explain. I don't get it!
asked by Celest 
Psychology HELP !
For your opinion, do you think personality disorders should be an inclusion as a diagnostic category in the next version of the DSM ? On the other hand, do you think personality disorders is a fact or a fiction? :)) Thank youu
asked by Luah 
Math.
On any given day, there is a 30% chance that Jenny will wear jeans. If she wears jeans, there is a 60% chance that she will wear a tshirt. A) determine the probability that Jenny wears jeans and a tshirt on any given day. B)determine the probability that
asked by Tasha 
Maths(help me plz..!
The sides of a triangle are of lenths x*y*, x*+y* and 2xy units respectively. Prove that the triangle is a right angled triangle
asked by Alexander 
Math
As a means of getting exercise, you choose from going for a run, riding your bike or going for a swim. Your previous behavior shows that you bike 30% of the time and swim 15% of the time. What is the probability that the next time you exercise you will go
asked by Tasha 
Com/340
what are your own experiences and perceptions about biased reporting in your hometown, county or state.
asked by Anita 
Com/340
Do you think reporters should forfeit political involvement, including party registration and voting?
asked by Anita 
Business Communications  English 101
revised.... just wanted to make sure I did these two paragraphs correctly. This is for an interoffice memo It was given to us with no punctuation and all sentences ran together. Thank you Ed, I have made several changes to our staff to help accommodate the
asked by MaryBeth 
math
How many integers from 1 to 1000 (exclusive) are divisible by the cube of an integer larger than or equal to 2?
asked by anonymous 
math
fine the total amount in the compound interest account? $8000 is compound semiannually at a rate of 10% for 20 years
asked by Anonymous 
Calculus
Find the derivative of the function. f(x)=(e^x+e^(x))/2
asked by Anonymous 
Calculus
Find the derivative of the function. f(s)=(s6 + 1)es6
asked by Anonymous 
Calculus
Find an equation of the tangent line to the graph of y = ex2 at the point (2, 1/e4).
asked by Anonymous 
algebra
Write the equation of the line in slopeintercept form that passes through the point (3, 2) and has a slope of 2.
asked by brianna 
Excel Filtering
Return 2005 Return 2006 Return 2007 I have a data table with returns for 3 different years. I want to use a filter that only includes records where the return is increasing each year(i.e.: 2005
asked by Dom 
Math
A basketball team won 10 of its first 20 games. If then won its next 5 games. What fractional part of its total number of games did it win?
asked by Mohammed 
alg2 check?
1.)...(2x)(3x^3)? I said it was x=5 am I right?step by step plz? 2.)....(4xy^2)^3 im not sure about this one
asked by tyneisha 
Thermodynamics
1. The total enthalpy of 15.000kg of steam at 2250.000kPa is 34191.510kJ. Determine the dryness of the steam. ANS = % 2. Determine the quantity of heat required, to raise 11.100kg of water at 80.000 degrees Celsius, to saturated steam at 2250.000kPa and
asked by Danny 
algebra 2
solve equation for x atate any restrections axbx+2a
asked by Andrew 
Math
Solve for x 35:4=x:2
asked by Steve 
life orientation
identifie 5 ways in which the environment /human factor impact on the community
asked by hellen 
Math
W varies directly as x,y,and z. If w=36 when x=2, y=8, and z=12 find w when x=1 y= 2, and z=4
asked by Steve 
Math
Over a fixed distance speed r varies inversely as time t. If the speed of a car is 30 mph when the time is 6 seconds what would the speed be of the car if the time was 4 seconds
asked by Scott 
Physics
An 8 kg ball is moving at 4 m/s. Work is done on the ball to give it a speed of 12 m/s. What is the ball's initial kinetic energy? What is the ball's final kinetic energy? What work was done on the ball?
asked by Jai 
mat221
3X(1412)+29 divide by 7
asked by Anonymous 
Geography
The _______ were responsible for the forced migration of more people from Africa than any other colonial power. A. British B. Dutch C. Portuguese D. Spanish
asked by Anonymous 
children's literature
which of the following statements about literary is true
asked by Anonymous 
math
The volume of a box with square base is 90 cubic centimeters. If the height of the box is 15 centimeters, what is the length of each side of the base?
asked by Kaydee 
Math(reiny)
On the earlier questin would the speed be faster not slower?
asked by Scott 
socials 11
why was totalitarian needed for ww2?
asked by alyssa 
history
i need to write a short note on mughal empress princess jahanara
asked by leena 
PreAlgebra
I need help on these two questions: d/6+12=7 b+1/3=2
asked by Celest 
Theory to practice
a child throws a ball with speed and accuracy when he plays catch with his teacher, but throws are slower and less accurate when he plays with a group of friends. this diffrence is explained by.
asked by cloie 
PreAlgebra
3/4q7=8 *please also post a website
asked by Celest 
theory to practice
What fundamental motor patterns do girls tend tp attain more quikly than boys do?
asked by cloie 
Writing
On the whole, peoples experiences with department store cards are good except when they loose a card. Can you tell me if i used except and peoples corectly
asked by Nick