Questions Asked on
November 15, 2011

Math
Random variables X and Y are both normally distributed with mean 100 and standard deviation 4. It is known that random variable X+Y is also a normal distribution. a. What is the mean of X+Y? b. What is the standard deviation of X+Y? I see that the mean is
asked by Rob 
ratio
24 people in 6 cars, find the unit rate?
asked by alex 
palmetto high school
a landscape architect wants to make a triangle garden insde a square of land as shown at the right. What is a rule for the area A of the garden as a function of a?
asked by Amy 
ASTRONOMYHELP!!!
IM DESPERATE!!!!!!!!!!!!! HELLLPPPPPP!!!! Can someone explain to me this asteroid article??? ?i am so confused! (google: asterioid 21 lutetia:low mass, high densityfirst link)
asked by Rebecca 
modern world studies
what kind of reforms were enacted in Germany and Britian?
asked by alethea 
chemistry
25.0 g of sodium carbonate is combined with an excess of hdrochloric acid. in the end 5.70 g of sodium chloride is isolated. what is the percent yield of sodium chloride
asked by Anonymous 
chemistry
An experiment in your laboratory requires 500 mL of a .0200 M solution of Na2CO3. You are given solid Na2CO3, distilled water and a 500 mL volumetric flask Describe how to prepare the required solution showing all calculations and describing each step
asked by Jennifer 
Math (Calculus)
this is a question I don't understand: Demonstrate the following derivative rule: (Arccsc(u))' = (1/u(u^21)^1/2) * u' Where u = g(x) Do they want me to start with (Arccsc(u)) and get to (1/u(u^21)^1/2) * u' ? Thank you
asked by Jim 
Math
Find the vertex of the graph of f(x)=2x^2+8x+6
asked by Lynn 
chemistry
The density of liquid water is 0.997 g/mL at 25 degrees Celsius. a) Calculate the mass of 250.o mL (about a cupful) of water. b) How many moles of water are in 250.0 mL of water? Use the result from letter a. c) Calculate the volume that would be occupied
asked by khloe 
government
what are the strict and liberal attitudes toward state power?
asked by haya 
Solubility of gases
Can somebody tell me a list of (common) gases that are soluble, moderately soluble, and insoluble in water? I would like to know which gases can be collected using the downward displacement of water method. CO2 O2 SO2 H2 CO Noble gases F2 Thank you!
asked by Hae 
physics
A man of mass 67.1 kg stands on a scaffold supported by a vertical rope at each end. The scaffold has a mass of 24.6 kg and is 3.6 m long. Suppose the man stands to the right from the middle of the scaffold that is a distance one sixth of the length of the
asked by ruth 
maths
SOLVE THE EQUATION FOR Z Z divied by Z+2+i=3+i
asked by vmu 
math
a train left podunk and traveled north at 75 km/h. two hours later, another train left podunk and traveled in the same direction at 100 km/h. how many hours had the first train traveled when they were 1420 km apart?
asked by angie 
math
joe left a campsite on a trip down the river in a canoe, traveling a 6 km/h. four hours later, joe's father set out after him in a motorboat. The motrboat traveled at 30 km/h. how long after joe's father started did he overtake the canoe? how far had joe
asked by angie 
JavaScript
I'm working on a javascript exercise. I have written function called count where the count function take in one parameter and the parameter is a array of number. The problem I having is how do i return the numbers of negative elements, zeros, and values
asked by Adam Johnson 
trigonometry
A pilot is flying with an air speed of 185mph. Find the ground speed of plane and the direction of flight.
asked by Anonymous 
Physics(light)
why the ray reflected by the prism is brighter than that by the plane mirror?
asked by demolitrate 
physics
A load of mass 80kg fell dwn from d floor of a lorry whch is 1.2m high.calculate wrk dne by gravity on d land
asked by Emeka 
math
i am greater than 40 but less than 50. i am 5 times a number. who am i?
asked by gian 
Physic Help please
an object of mass 1.5 kg on a spring of force constant 600N/m loses 3% of its energy in each cycle.THE SYSTEM IS DRIVEn by a sinosuidal force with maximim value of F0=0.5N.(a) What is Q for this system?.(b) What is the resonance (angluar)frequency? (c) If
asked by jjena 
To Jordan, Brittany, and Kate ~
Your umpteen posts have been removed. Here’s the way this website works: You post a question you have about your assignment, and then tell us what you think about it all so far. Then we can tell what help you need and work with you on your answers.
asked by Writeacher 
physics
A rough wooden block of mass 4kg place on a rough horizontal plank is applied by a force of 35n until it just starts to move calculate the coefficient of static friction (take 9=10m/52)
asked by Anaebo 
Physics
why the ray reflected by the prism is brighter than that by the plane mirror?
asked by demolitrate 
statistics
In a state,52%of the voters supports partyR, and 48% supports partyD. In second state 47% of the voters supports partyD. Suppose 100 voters are surveyed from each state. Assume the survey uses simple random sampling. what is the probability that the
asked by johnprabhakaran 
statistics
Ram earned a score of 940 on a national achievement test. The mean test score was 850 with a standard deviation of 100.what proportion of student had a higher score than Ram?(Assume that test scores are normally distributed)
asked by johnprabhakaran 
statistics
which of the following statements is true? Justify your answer with an example. i)When the margin of error is small, the confidence level is high. ii)When the margin of error is small, the confidence level is low. iii)A confidence interval is a type of
asked by johnprabhakaran 
geometry
An aeroplane when 6000 m high passes vertically above another plane at an instant when their angles of elevation at the same observing point are 60° and 45° respectively. How many meters higher is the one than the other?
asked by amar 
physics
A rough wooden block of mass 4kg placed on a rough horizontal plank is applied by a force of 35n until it just starts to move calculate the coefficient of static friction (take 9=10m/s
asked by Anaebo 
geometry
if area of triangle wxz is 48 cm squared, x =10 cm, xz = 10 cm, middle =8 cm then what is the perimeter of wxz
asked by tim 
UST PHYSICE
a body of mass 6kg is whirled in a horizontal circle of radios 1.5m with a uniform velocity 3m/s. calculate 1. the angular velocity 2. the centripetal acceleration.
asked by Anaebo 
Math
Input x 2 output y=17, input x 4 output y=28, input x 6 output y=42, what is the rule for the table?
asked by Jay 
world history
With the adoption of Christianity by Constantine, the emperor A. stopped using images of pagan gods. B. ended pagan rituals and ceremonies. C. was no longer worshipped as a god. D. was called God's deputy on Earth. im not sure its it B or D
asked by firedup 
trig
What is the exact value of 19 pie divided by 12.
asked by Jimmy 
world history
Peter the Great's decision to move the capital of Russia to St. Petersburg reflects the shift of power in Europe to the A. north. B. east. C. west. D. south.
asked by firedup 
algebra
Cramer's rule I understand the method but idk how to do this question 6x+2y=44 7+9Y=96
asked by Bob Brown 
algebra
Explain in your own words what it means for an equation to model a real world situation an give an example. it is right to say that when given a problem, we want to identify the quality of the problem we want to find, translate form word to algebra, and
asked by lan 
physics
A large, solid metal sphere is suspended from a the ceiling by a cable, and is free to rotate about the wire. If the mass of the sphere is 176 kg, its radius is 0.7 m, and it is initially rotating at 28 rpm (revolutions per minute), what work is required
asked by john 
physics
At 15 minutes past the hour, a 50 g mouse runs up a grandfather clock and sits himself down at the end of the minutehand. If the minutehand for the clock is 16 cm long, what is the magnitude of the torque exerted by the mouse on the minutehand? Give
asked by lisa 
history
How did african slavery contributed to the economic growth of the british economy
asked by Natasha 
math
Mary's age is 2/3 that of peter's. two years ago mary's age was 1/2 of what peter's age will be in 5 years tim. how old is peter now?
asked by rafael 
chemistry
A rolaids tablet contains calcium carbonate which neutralizes stomach acid. If rolaids tablet neutralizes 42.15 mL of 0.320M hydrochloric acid, how many milligrams of calcium carbonate are in a Rolaids tablet CaCO3 + 2 HCl > CaCl2 + H2O + CO2 Pls
asked by monique 
physics
At 15 minutes past the hour, a 50 g mouse runs up a grandfather clock and sits himself down at the end of the minutehand. If the minutehand for the clock is 16 cm long, what is the magnitude of the torque exerted by the mouse on the minutehand? Give
asked by henry 
geometry
a rectangle measures 30 feet by 20 feet and has a post at each corner and a post every 2ft. How many posts in all?
asked by Jay 
Math, Please Help!!!
an engineer designs a satellite dish with a parabolic cross section. The dish is 15 ft wide at the opening and the focus is placed 4 ft from the vertex. find an equation of the parabola. I know how to work this problem, but how do I know that I use the
asked by BOB 
math
1/2 of students walk to school. 1/3 of students take the bus. What is the remainder? Put in order from from greatest to least.
asked by Jay 
math
1/2 of students walk to school. 1/3 of students take the bus. What is the remainder? Put in order from from greatest to least.
asked by Jay2 
English
Could you please chech the writing of the dates in letters? I included a few questions on Macbeth. 1) 2003: two thousand and three/twenty oh three 2) 1805: eighteen oh five/eighteen hundred and five. 3) What are the most dominant themes in Shakespeare’s
asked by Henry2 
writing
Could anyone please help me with this question? Is the phrase below a smilie, metaphor, or personification. The sky lit up with a huge web of lightning. I know what a smile, a metaphor, and what a personification is, but I can't seem to be able to answer
asked by Howler 
math
A rectangle measures 30 feet by 20 feet and has a post at each corner. If posts are placed 2 feet apart. How many posts will there be in all?
asked by coach 
Science project fair
Hello: My daughter is in 4th gde and is about to turn in her displayboard but we are not coming up with a good title. She wants to title it "Flowers with sweet tooth". In her science projct she has discovered that sugar helps cut flowers live longer than
asked by priscila 
MATH
Please help me with these: 1. 5/8 + 5/6 = 2. 2 3/5 + 4 4/5 = 3. 13 1/2 + 7 2/3 = 4. 3/8  3/8 = Thanks!
asked by JOSH 
english
Conor's sense if his own INFALLIBILITY has contributed to his succes at chess. A. inability to make an error B. worth c. openmindedness D. srtategic skills
asked by lola 
ECON  urgent please help
demand for sulfur dioxide by coalfired electricity electricity producers is: Firm A's demand: P= 1,000  80 Q Firm b's demand: P= 1,000  20 Q where Q is quantity of sulfur dioxide measured in thousands of tons, and P is price per ton of sulfur dioxide.
asked by Sushmitha 
Econ  please help
demand for sulfur dioxide by coalfired electricity electricity producers is: P= 1,000  16Q where Q is quantity of sulfur dioxide measured in thousands of tons, and P is price per ton of sulfur dioxide. Supposed EPA restricted the number of oneton sulfur
asked by Sushmitha 
chemistry
the number of grams of KCI per 100g of water that would produce a saturated soluion at 50 degrees C is?
asked by Janet 
natural science
hi can sm1 help me hw many kilojoule (kg) are there in 1kwh?
asked by zinhle 
geometry
if ac=17 and bd=15 nd ab=11.2 what is the area of the rhombus
asked by *** 
physics
A planet orbits its star in a circular orbit (uniform circular motion) of radius 1.62x10^11 m. The orbital period of the planet around its star is 37.0 years. Determine the following quantities for this orbital motion: Angular acceleration , Tangential
asked by sand 
managerial economics
draw a game tree when sony makes its technology decision first.does sony experience a firstmover advantage
asked by mark 
science fair project
Thank you Howler but do I put the title with a question mark, like "Flowers with a sweet tooth? or just "Flowers with a sweet tooth...." thany you again
asked by priscila 
Chemistry HW Check
I have seven homework problems. I did them but I wasn't sure if I did them correctly. Did I do them correct? Thank you! Give the reaction that describes how the hydrazine, N2H4(aq), / hydrazinium ion, N2H51+(aq), buffer reacts with a strong base such as
asked by Maegan G 
maths
a carpenter needs to cut a plank of wood that is 3.75m long into 5 equal pices what is the length of each piece of wood?
asked by jebril 
physics
A coin with a diameter of 2.10 cm is dropped on edge onto a horizontal surface. The coin starts out with an initial angular speed of 13.3 rad/s and rolls in a straight line without slipping. If the rotation slows with an angular acceleration of magnitude
asked by Anonymous 
physics
two strings are connecred to a 10 Kg mass with T2 making an angle 30 degree with the horizontal find the tension in the other string
asked by jak 
SLOPE MATH
The grade of a road is its slope given as a percent. for example, a road with a 6% grade has a slope 6/100. it rises 6 feet for every 100 feet of horizontal run. describe a 100% grade. Do you think you could drive up it?could you walk up it? Is it possible
asked by manal HELP ME 
English
Shall I consider the following sentences as gramatically wrong? 1) How many times do you do your homework after dinner? (instead of "how often") 2) I always do my homework with attention (instead of "carefully") 3) I think that two thousand three (2003),
asked by Henry2 
Math (Calculus)
without any simplification, find the derivative of h(x) Arcsin^4 (3x1) / (3)^1/2 (square root) I end up with h'(x) = 12Arcsin^3 (3x1)sqr(3) / 3 (squr(1(3x)^2))
asked by Jim 
French
Can someone to correct mistakes? Thank you! Le 4 septembre a été volé un vélo. Une fille avait laissé son vélo près d'un bar. Quand elle est sortie du bar elle a vu que son vélo avait été volé et a appelé la police. Aussi elle lisait des
asked by Ana 
chemistry
what volume will53ml of gas measured at 25degree and 97 k pa become if the temperature is changed to 55 degree and pressure to 93 k pa ?
asked by imshat 
mecs 101
How has Islamic law attempted to adapt to modernity?
asked by lou 
MS Office Suite
I am familiar with Excel 2007. I just got the news that I will be expected to use Excel 2010 instead. What are some of the differences between Excel 2007 and 2010? Were there many changes between those two editions? If someone has used both versions, do
asked by Rufus 
3rd grade math
A rectangle measures 30 feet by 20 feet and has a post at each corner. If posts are placed 2 feet apart. How many posts will there be in all?
asked by steph 
Discrete Math
You have two decks of 26 cards. Each card in each of the two decks has a different letter of the alphabet on it. You pick at random one card from each of the two decks. A vowel is worth 3 points and a consonant is worth 0 points. Let X = the sum of the
asked by Martin 
Social Studies
The question is "Evaluate the effectiveness of this action" The action was the government appologizing for Chinese Head Tax. Not only did the gov't appologize , it also gave symbloic payments to those affected by the head tax. Then it says "does it
asked by Brooke 
physics
A sled is initially given a shove up a frictionless 32.0 incline. It reaches a maximum vertical height 1.50 higher than where it started.
asked by Anonymous 
science
A man fires a gun 150m from a cliff. A second man who is standing 300m further away from the cliff hears the gun 1 second after he sees the flash. When will the second man will hear the echo from the cliff?
asked by surbhi 
math
how do you write a situation that can be represented by the algebric expression $3.50t?
asked by jadah 
math
How many cubic yards of concrete will it take to fill a cylindrical column that is 24 feet high and whose diameter is 2 feet
asked by Mike 
PreCalculus
I'm trying to find the xintercepts of a polynomial function = 4x^43x^36x^2+2x+6. I don't want anyone to solve it, could someone please just tell me how to start factoring this so I can find the xintercepts, I'm lost.
asked by Manny 
Algebra
How many three symbol codes using the digits 3 through 9 are possible if repetitions are allowed? (243 is an example of a three symbol code).
asked by Lori 
Introduction to Psychology
The experimental rats were being raised in separate environments. One group lived in the traditional cage in a quiet, but well lighted room. They were supplied with plenty of food and water. The second group inhabited "Rat Disney Land." There were colorful
asked by Anonymous 
geometry
The height of a triangle is 12 centimeters greater than the width of its base. If h represents the height of the triangle, then the area of the triangle as a function of h is
asked by lola 
physics
A boat’s speed in still water is vBW = 1.85 m/s. If the boat is to travel directly across a river whose current has speed vWS = 1.20 m/s, at what upstream angle must the boat head?
asked by ahmed 
History
How did the Indians flight against Andrew Jackson and the government
asked by Shelly 
managerial economics
Recently one of the nation’s largest consumer electronics retailers began a nationwide television advertising campaign kicking off its “Take It Home Today” program, which is designed to encourage electronics consumers to buy today rather than
asked by mark 
English
I still have a few doubts about some more sentences. 1) wideapart eyes : is "distant" eyes possible? 2) paleskinned: is fairskinned possible? 3) happily: is "contently" possible? I watch TV (is the TV also possible?) a quite large mouth (or quite a
asked by Henry2 
physics
what temperature is bose einstien condensate?
asked by lissa 
statistics
the times required to assemble a product part are normally distributed with a mean of 54.4 minutes & a standard deviation of 5.2 minutes. What fraction of the assemble workers require more than one hour?
asked by lia 
chemistry
what is the solubility of CuS in water at 25 C and 1 bar ? for equilibrium : CuS + H2O = CuSO4 + H2O
asked by tota 
geometry
In a right triangle, one side is 9 units in length, and the hypotenuse is 15 units in length. What is the length of the other side?
asked by ginA 
Math
Find xintercepts of x^49x^3+29x^240x+20
asked by Anonymous 
geometry
Triangle XYZ above is similar to triangle UVW (not shown). If the length of one side of triangle UVW is 60, then what is one possible perimeter of triangle UVW?
asked by matt 
world history
can you check over my answers? Q.) With respect to human rights issues in Southeast Asia, which statement is most accurate? A.)The leaders of the Khmer Rouge fled from Cambodia after 1979. B.)The Khmer Rouge leaders have never been brought to trial.
asked by nike 
Science
What geological forces might have created land, sea, and sky by Phil Brodatz?
asked by DestinyLashea 
math
create the equation: x=2 and x=5
asked by Allison 
algebra
40y/88 explain what steps you took to simplify and show your work
asked by keyanna 
African American History
What European nations were the first to engage in trade talks with Africans
asked by Shay 
Business Law
Background: ABC is a multinational enterprise (MNE) incorporated in State X. ABC entered into a joint venture agreement with XYZ, an MNE incorporated in State Y, to jointly produce a new line of hydraulic equipment in ABC's new factory in State Z, a
asked by Lakeisha 
math
150 miles in 8 gallons
asked by Anonymous 
chemistry
The following reaction is used to produce tungsten(VI)oxide: WS3(s) + O2(g) → WO3(s) + SO2(g) The WO3 is then heated and undergoes a decomposition reaction produce tungsten and oxygen gas. How many grams of tungsten could be produced if 16.91 grams of
asked by kim 
world history
correct? 17. Toyota's remarkable growth as a multinational company is uniquely associated with which of the following? A. Kaizen and jidoka *B. Kaizen and chaebols C. Jidoka D. Chaebols _______________________________________ 18. From 800–1200, the Khmer
asked by ness 
physics
A wooden block with a volume of 29.59 cm3 is held under water. What is the buoyant force on the block (see sheet 19)? Indicate with a positive (negative) sign whether the force you calculate depends (does not depend) on the density of the wood.
asked by cassie 
Biology
what are the radiometric dates of: Homo sapiens, stone tools, sabre toothed cat, wolly mammoth, apes, whales, horses, dinosaursflowering plants, birds, earthworms, reptiles, spiders, sharks, amphibians, land plants, jawless fish, jellyfish bacteria and
asked by JG 
history
i think its rite is it? 13.) . The visit of an influential nuclear physicist to a population symposium in 1979 led to A. the twochild policy in China. B. the election of Deng Xiaoping in China. C. new nuclearpower safety measures in populated areas in
asked by man 
Algebra
Search: List (a) the coordinates of any yintercept and (b) the coordinates of any xintercept. Do not graph. x = 5
asked by Kameesha 
physics
A 4kg block is connected by means of a massless rope to a 2kg block in the figure. If the coeficient of sliding friction between the 4 kg mass and the table is 0.150, find the acceleration of the system, and the tention in the connecting cable.
asked by Anonymous 
Math
How do I fing volume of a shape?
asked by Zoe 
Please Help!!!!!!
an engineer designs a satellite dish with a parabolic cross section. The dish is 15 ft wide at the opening and the focus is placed 4 ft from the vertex. find an equation of the parabola. I know how to work this problem, but how do I know that I use the
asked by Desperate!!!! 
English
Are these constructions possible in English? I know they are possible in German. 1.I'm long, curly and darkhaired. 2. She is a curvedeyebrowed person. 3. She is narrowmouthed. 4. She is a thick eyelidded girl. 5. I hardly every sulk about people
asked by Henry2 
chemistry
Acetic acid (CH3COOH) reacts with isopentyl alcohol (C5H12O) to yield the ester isopentyl acetate which has the odour of bananas. If the yield from the reaction is 45%, how many grams of isopentyl acetate are formed when 3.90 g of acetic acid and 6.28
asked by kim 
calculus
Show that the equation x+3sinx=2 has a root between 0.4 and 0.6.express the root to four significant figures
asked by farouk 
language arts
Complete the analogies by selecting the pair of words whose relationship most resembles the relationship of the pair in capitol letters. SAGE:WISDOM a. author:anthology b. speaker:tirade c. acrobat:agility (I'm thinking c but I'm not sure) SCOLDING:TIRADE
asked by Bre 
Biochemistry (BCMB)
Why do plants go on to manufacture energyrich sugars when they already have ATP and NADPH for chemical energy from light reactions of photosynthesis?
asked by Kevin 
Physics
A high school cheerleader has a baton that is 1 meter long with a 100 gram mass on each end. Another cheerleader has a baton that is 0.5 meter long with the same mass on each end. Neglecting the mass of the rod holding the masses together, which baton will
asked by Kevin 
8th Grade Chemistry
This is from the Glencoe book Chemistry, Book L. Unlike sodium and chlorine, some atoms becomre more stable by sharing_______, forming______________rather than charged__________. The bonds in a molecule of oxygen are _______ _______ bonds, while the bonds
asked by Eric 
Finite
Assume the box contains 7 balls: 3 red, 2 blue, and 2 yellow. A ball is drawn and its color noted. If the ball is yellow, it is replaced; otherwise, it is not. A second ball is then drawn and its color is noted. What is the probability that the first ball
asked by Athena 
ASTRONOMYHELP PLEASE!!!!!
Equipment: Geiger counter. Laboratory emitters of alpha, beta and gamma radiation. Substances which may or may not be emitters Assorted possible radiation blocking material.
asked by Rebecca 
physics
A planet orbits its star in a circular orbit (uniform circular motion) of radius 1.62x10^11 m. The orbital period of the planet around its star is 37.0 years. Determine the following quantities for this orbital motion: Angular acceleration , Tangential
asked by sand 
people
Which of the following people do you think is most important to Egyptian history:King Menes,Manetho,Khufu or Amenenhet?
asked by Glorious 
governmentpos110
The political system in which those who have governmental authority get and retain authority directly or indirectly because of winning free elections is called: A.a republic. B.an authoritarian system. C.a direct democracy. D.a representative democracy. D?
asked by Shelly 
algebra
if the lengths of a triangle are y, y1 and 7 what is the length of the longest side if the perimeter is 65
asked by dan 
language arts
Complete the analogies by selecting the pair of words whose relationship most resembles the relationship of the pair in capitol letters. AFFABILITY:SMILE a. pain:grimace b. resilience:recovery c. turbulence:pseudonym d. abrasion:bruise (I think it is "a"
asked by Bre 
maths
how do i work out 7.25/0.25 without using a calculator???
asked by Nabiha 
Biochemistry (BCMB)
Waste gases containing CO2 from power stations are sometimes pumped through pools containing an aquatic green unicellular alga, such as Chlorella. Explain two benefits of this.
asked by Kevin 
Social Studies
What do the British call the American Revolution,due to the "Little Colonies" being a thorn in the mighty British Empire side?
asked by Austin 
statistics permutations and combinations
Selecting a committee: There are 7 women and 5 men in a department. How many ways can a committee of 4 be selected if there must be at least 2 women?
asked by Celee 
math
A rectangle measures 30 feet by 20 feet and has a post at each corner. If posts are placed 2 feet apart. How many posts will there be in all? Explain and show work please.
asked by wurm 
Algera
If x is divisible by 4,5,20. Which of the following statement must also be divisible by 4, 5, 20? x+4 x+5 x+10 x+20
asked by Lee 
governmentpos110
Which of the following is true regarding U.S. Senators? A.Senators are elected to 2 year terms. B.Senators can approve executive agreements. C.Each state has two Senators. D.Senators must be 25 years old. d sounds famaliar
asked by Shelly 
calculus
two curves are orthogonal at a point of intersection of their tangents at that point cross at right angles. Show that the curves 2x^2+3y^2=5 and y^2=x^3 are orthogonal at (1,1) and (1,1). Use parametric mode to draw the curves and to show the tangent
asked by Anonymous 
Calculus
With y=f(x) (2x10)^1/2 having a virtual line joined at point Q from the origin (0,0), determine the coordinates of point Q that maximises the angle of vision of an observer, situated at the origin, following the movement of point Q along the curve. Note
asked by Jim 
English
Could you please check these last sentences? Thank you very much. 1) I'm quite long, straight, brownhaired.(Should there be a hyphen to separate adjectives?) 2) After homework I help my mum with the housework. 3) Can you say “at 13:45 o’clock”?
asked by Henry2 
math
i am less than 200 sum of the digits =6 product of the digits =0 each factor of 75 is its factor too
asked by broklyn 
Math
Kyle and his brotherJoe have 24,000 family photos. They saved 600 photos on CD each month. How many months did it take to save the photos ?
asked by help please !!!!!!!!!!!!!!!!!!!! 
Math
Omggg I don't understand this at all! My teacher did not explain fully and he gave this assignment. Express using absolute value notation. 1. x< 3 or x> 3 I know the answer is x>3 but why?
asked by Jelal 
accounting
A city is served by two newspapers—the Tribune and the Daily News. Each Sunday reader purchases one of the newspapers at a stand. The following transition matrix contains the probabilities of a customer’s buying a particular newspaper in a week, given
asked by Zanobia 
chemistry
Determine the molarity of a 2.15L aqueous solution containing 1.45 moles of KCl.
asked by Anonymous 
government
The Federal Administrative System's main goal is to ________________________. implement the laws that are passed by Congress and signed into law by the President be as independent as possible from the executive branch create a huge bureaucracy to ensure
asked by Shelly 
gov.
Presidents can circumvent checks upon themselves in all of the following ways EXCEPT executive privilege. executive statements. executive agreements. executive orders. I have no idea, I can't find it in my book. the first one?
asked by Shelly 
geometry
Write a twocolumn proof of Theorem 623, which is: If a quadrilateral is a parallelogram, then its consecutive angles are supplementary.
asked by Lauren 
SERVEY
Im doing a servey for school and I need to know Which is better to you: music or sports??? i already have 7 people and i need 20 people
asked by Auggie 
math/117
Explain three rules for exponents listed in the chart on p. 239 (Section 4.2). Do not explain the first two definitions listed in the table (Exponent of 1 or 0). Create an expression for your classmates to solve that uses scientific notation and at least
asked by Anonymous 
6th grade english
What is the verb, direct object, and/or the indirect object in the follow sentence. The boy saw a huge beanstalk outside his window the next morning. Is it: Verb: saw or huge? Direct object: beanstalk? Indirect object: the boy? Or what is it?
asked by Mad(: 
Science
A 0.5kg baseball is pitched at 45 m/s and is struck by a bat and sent back toward the pitcher at 45 m/s. If the ball is in contact with the bat for 0.0025 seconds, how hard does the bat hit the ball? What forces act on the ball after the bat hits it?
asked by Horace 
Math
A Japanese beetle has a length between 0.3 and 0.5. Find two lengths that are within the given span. Write them as fractions in simplest form.
asked by Susana 
English (answer quick)
Tonight for english I have to print out 23 articles about the historical I choose to research. My historical person is Emma Amos (artist african american painter), I got one article about her (remember I was going a journal entry for english about me
asked by Laruen 
physics
The 67 kg man in the roller coaster car is sitting on a bathroom scale. If he is traveling at 33.4 m/s at the point shown and the radius of the vertical coaster track is 73 meters, to the nearest newton what does the scale read?
asked by herm 
Physics
After an unfortunate accident at a local warehouse you have been contracted to determine the cause. A jib crane collapsed and injured a worker. The horizontal steel beam had a mass of 88.50 kg per meter of length and the tension in the cable was T = 11.78
asked by Morgan 
algebra
it took stephen 3 1/2 hours to do the yarrdwork he spent 2/3 of that time mowing the grass how long did it take stephen to mow the grass
asked by lazaria 
geometry
A carpenter must ensure that a large window frame is a rectangle. If the corners are labled E,F,G, and H, the carpenter knows that EF=51 inches, FG=28 inches, GH=51 inches, and EH=28 inches. The carpenter could measure the diagonals EG and FH and verify
asked by alisa 
physics
A 220 N crate is pushed along the ground with a horizontal force. The coefficient of kinetic friction is 0.21 and the coefficient of static friction is 0.31. The crate moves at a constant speed of 4.1 m/s. a) Draw a freebody diagram for the crate. b) What
asked by Kelsey 
Alg 1
The largest town square in the world is Tiananmen Square in Beijing, China, covering 98 acres. A. 1 sq mile is 640 acres. Assuming that the Tiananmen Square is a square, how many feet long is a side to the nearest foot? B. To the nearest foot, what is the
asked by Austin 
physics
A policeman with a very good ear and a good understanding of the Doppler effect stands on the shoulder of a freeway assisting a crew in a 40mph work zone. He notices a car approaching that is honking its horn. As the car gets closer, the policeman hears
asked by maria 
Biology
Each phenotype can only be represented by a single genotype. True or False? Help would be appreciated, thanks in advance!
asked by Jimmy 
physics
You drop a stone down a well that is 12.37 m deep. How long is it before you hear the splash? The speed of sound in air is 343 m/s.
asked by maria 
history
who did rome destroy and then put salt over the land so nothing would grow again? answer: Carthage
asked by mike 
MATH
Brenda and her family were driving to her grandmother’s house during a holiday. During the drive, Brenda fell asleep halfway through the trip. When she awoke, her family still had to travel half the distance that she had traveled while she was sleeping.
asked by MATH Please Help 
socials
explain why for intentional purposes, german forces needed to invade Britian if they were to hold western europe. what efforts they make to do this? i confused on this i think maybe britain real strong so germany want to invade first but what real reason?
asked by Mohammad 
socials
do u think it was an error on germanys part to invade ussr? i think yes because they promised not to fight with it but they broke promise.
asked by Mohammad 
socials
german defeat at stalingrad is thought of some historians to be the point in which the defeat of germany became expected. why is this? my friend not come again can please make my sentence proper? it because it place they get most desperate and it where
asked by Mohammad 
geometry
the degree measure of angle A is represented by 2x20 and the degree measure of angle B by 2x. Find the value of x, measure of angle A and B.
asked by diana 
socials
what the purpose of the dieppe raid? why were canadian troops selected for it? why did it fail? what useful information have been learned from raid? purpose to practice and test new techniques and equipment. canadian troops selected for this because they
asked by Mohammad 
history
whom did Rome face attacks from ? answer Macedonia, Greece and part of Asia
asked by mike 
Cultural Anthropolory
How does the identication of cultural universals impact our understanding of what it means to be human?
asked by willie lemon 
algebra
me bought 2lb of sliced ham for 3.75 per lbs.sales tax is 12% how much do i pay
asked by toyw 
Math
Samantha saved $13 by buying a used DVD. She paid $5 less than half the original price of a new one. How much did Samantha pay for a used DVD?
asked by Marc 
statistics
A business researcher wants to estimate the average number of years of experience an account manager has working with the company before getting promoted to account manager. Eight account managers are randomly selected and asked how long they worked with
asked by alessandria 
Physics
An airplane is flying with a constant speed of 275 m/s along a horizontal circle with a radius of 1.23 x 104 m. If the lift force of the air on the wings is perpendicular to the wings, at what angle, relative to the horizontal, should the wings be banked?
asked by kim 
physics
If a 1megaton nuclear weapon is exploded at ground level, the peak overpressure (that is, the pressure increase above normal atmo spheric pressure) will be 0.2 atm at a distance of 6 km. What force due to such an explosion will be exerted on the side of
asked by Marti 
math
what is the elapsed answer for 4:05pm to 8:45pm
asked by Tivonna 
riddle
what word can you make with these lettters tttlrmheee
asked by mom 
Science 7R (Homework Check, answer quick)
Can you check if the answr is correct and of there any any grammar mistakes. 1. Explain why the invention of the microscope was important in the study of cells? Answer  The reason why the invention of the microscope was important in the study of cells is
asked by Laruen 
Science
I need help determining what the second phase of a Succession Diorama for a forest fire would contain.
asked by Marsha 
sentences
Can you give me a sentence with the word difficulties?
asked by Kate 
Physics
A 66.7 kg cart is moving at 11.9 m/s around a horizontal curve whose radius is 30.5 m. What is the magnitude of the fictional force required to keep the cart from sliding?
asked by dummy 
socials
tv film produced by cbc in 1920's implied the firebombing of german cities by allied forces was a war crime. film aroused great controversy. what ur opinion on this? dont that make the allied forces look negative? that bad i say. ms. sue i right?
asked by Mohammad 
Psychology Please Help!!!!
The experimental rats were being raised in separate environments. One group lived in the traditional cage in a quiet, but well lighted room. They were supplied with plenty of food and water. The second group inhabited "Rat Disney Land." There were colorful
asked by Anonymous 
history
whom did Rome face attacks from ? answer Macedonia, Greece and part of Asia all of them what do you think ?
asked by mike 
Math
Is the product of 4 x 8,827 less than 36,000? How do you know?
asked by Isabella 
math
if the radius is 24 ft. what is the circumference?
asked by hunter 
sentences
Can you give me a sentence with the word eddies?
asked by Marie 
sentences
Can you give me a sentence with the word batches?
asked by Gary 
socials World War 2
i don't understand what winston churchill mean to say when he say everything in war depend on outcome of battle of the atlantic
asked by Mohammad 
geometry
find x if m
asked by ashley 
Computer Club (please read)
Ok next week I have computer club and idk when to bring. What should I bring to computer club my teacher said I can take notes. Any Recommended Thank You!!!
asked by Laruen 
geometry
True or false Tangent circles always have exactly one common tangent.
asked by alisa 
chemistry
will someone please help me on dimensional analysis
asked by Rose 
Physics
Estimate the density of the water 6.0 deep in the sea. By what fraction does it differ from the density at the surface?
asked by Anonymous 
SCI
How can just 4 different nucleotides in DNA be responsible for the almost endless variety found in nature
asked by Nolagrl 
Social Studies
WAS THE FALL OF THE HAN DYNASTY INEVITABLE?
asked by SYNC 
Math
In this problem, x cubed = 12y...how do you solve to determine if this is direction variation or not?
asked by K 
history
whom did Rome face attacks from ? Germanic people , Carthage . is my answer right?
asked by mike 
Math
Put in standard form(Ax +By=C) y=x/5
asked by Anonymous 
Anthropology11
what are some canadian statistics on generalized anxiety disorder?
asked by rebecca 
physcis
A crane whose motoer has a power input of 5.0kW lifts a 1200kg load of bricks through a height 30m in 90s. Find the efficency of the crane which is the ratio between its output power and its input power
asked by Ania 
history
Who began a savage campaign to overthrow Europe? julius caesar
asked by mike 
geometry
Two similar solids have a scale factor of 3:5. If the height of solid 1 is 3cm, what is the height of solid 2?
asked by alisa 
geometry
Two similar solids have a scale factor of 3:5. If the height of solid 1 is 3cm, what is the height of solid 2?
asked by alisa 
Math
What property is for 9 + n = 9 + n ?
asked by Laruen 
chemistry
A balanced equation that represents an overall cell reaction is shown. Choose the cell notation which corresponds to the electrochemical cell that is described by this equation. a) Sn2+(aq) + 2Cu+(aq) → Sn4+(aq) + 2Cu(s) b) Pt(s) l Sn2+(aq), Sn4+(aq) ll
asked by Bob, NEED YOUR HELP 
chem
can you explain half  equations and oxidation and reduction and how they are linked
asked by anonymouscientist 
geometry
If the ratio of the volume of two similar solids is 8:125, then what is the ratio of their surface areas?
asked by alisa 
algebra the slope intercept form
Find the slope and yintercept for the graph of each equation: y=x7 how would you solve this type of equation? i know that with an equation like: y=2x+4 that it would be m=2/1 and b=4. but how would you solve the first one.
asked by Alie Mae 
3rd grade math
Even mom cant get this one A sets up pet parade. Pet owners walk in rows with pets Row 1 = 1 owner 1 pet Row 2 = 2 owners i pet each Row 3 = 1 owner 2 pets Row 4 = 2 owners 2 pets each Row 5 = 1 owner 3 pets ROW 6 = we have come up with 2 owners 6
asked by daniel's mom 
geometry
A rectangle with a length of 32 untis and a width of 18 units; find the length of a diagonal.
asked by Anonymous 
math
how to do arrays and expanded algorithms for multiplication example 17x 23 this is for a fourth grader help
asked by Anonymous 
Physics
A 60 kg skier moving at 14 m/s strikes a snow bank and comes to a stop in 4 seconds. What is the average impact force on the skier?
asked by Shari 
Physics
A 80 kg astronaut fires a 20 kg torpedo at 50 m/s from his torpedo gun. What is the astronaut's recoil speed?
asked by Shari 
history
What war directly led to the Athenian golden age under the rule of Pericles ? Persian war
asked by mike 
math
An arena seats 7,893 people. The circus is in town and all of the tickets have been sold. If the circus has 4 performances, about how many tickets were sold?
asked by Isabella 
Physics
Compared to a 400 kg plane flying at 5200 km/hr, how much momentum does a 2000 kg plane have at the same speed?
asked by Shari 
Physics
Why does a cannonball shot from a cannon with a long barrel travel faster than the same cannonball shot from a cannon with a shorter barrel?
asked by Shari 
Physics
Compared to a bicycle moving at 20 km/hr, how much momentum does the same bicycle have when moving at 60 km/hr?
asked by Shari 
Physics
Two objects are dropped from the same height. One object has a mass of 5 kg and the second a mass of 10 kg. What quantity(s) is/are different about the two masses just prior to impact with the ground?
asked by Shari 
math geometry volume
What are things that have to do with volume and geomrtry? List four things.
asked by Race 
Physics
a 25 kg slab of putty is moving to the East at 6 m/s. What is the momentum of the putty?
asked by Shari 
Physics
A 3 kg slab of putty moving at 8 m/s strikes, and sticks to, a 5 kg slab of stationary putty. What is the final speed of the combined mass?
asked by Shari 
Physics
A car slows to a stop over a certain distance. What could cause the stopping force to be greater?
asked by Shari 
Physics
A gun fires a bullet. When will the muzzle velocity of the bullet be equal to the recoil speed of the gun?
asked by Shari 
Physics
What exerts the force obn a rocket in outer space to make it move forward?
asked by Shari 
MATH
Please help me with these: 1. 5/8 + 5/6 = 2. 2 3/5 + 4 4/5 = 3. 13 1/2 + 7 2/3 = 4. 3/8  3/8 = Thanks!
asked by JOSH 
english
what does occassion mean as a literary element
asked by jaelon 
english
Organized in 1884, the first African American professional baseball team was the Cuban Giants. What are the phrases in these sentences?
asked by Anonymous 
Math: Homework Questons (answer quick)
Can you check if the answer is correct and of there any grammar mistakes. Write True or False and EXPLAIN your reasoning for the answer!!!! 8. (5  2)  1 = 5  (2  1) Answer: True Reason: The reason why my answer to this question is true is because when
asked by Laruen 
physics
A total of 10000kg of water per second flows over a waterfall 30m high.If half of the power this flow represents could be converted into electricity, how many 100W lightbulbs could be suplied?
asked by Ania 
english
The view from Mount Fuji is great. From Mount Fuji is the prepositional phrase. Is it an adjective phrase or an adverb phrase?
asked by Anonymous 
physics
A person's metabolic processes can usually operate at power of 6W/kg of body mass for several hours at time.Of a 60kg women carrying a 12kg pack is walking uphill with an energy conversion efficiencyof 20%,at what rate, in meters/hours does her aktitude
asked by Agata 
english
the secondlongest river in africa is the congo is in africa an adjective or an adverb phrase
asked by Anonymous 
english
After the game, we got something to eat. Are the phrases after the game and to eat? And if yes, are they both adverb phrases?
asked by Anonymous 
physics
Is the work needed to bring a car's speed from o to 10km/h less than, egaul to or morethen the worked needed to bring its speed from 10 to 20km/h. If the amounts of work are different, what is the ratio between them?
asked by Agata 
english
Jody was late for the party. The phrase is for the party. it is describing the late so its an adverb phrase right?
asked by Anonymous 
stats
You took a 5question multiple choice quiz with 4 choices for each question. If you guess at random on each question, what is the probability that you get at least one question correct?
asked by sia 
Science Word
Is cell theory is 1. the mayjor theory of life science 2. the cell is the basic unit of life 3. organisms are made up of one or more cells 4. all cells come from other cells I know it's 1 Im justing sure it's more than a answer. You (Ms. Sue) said that I
asked by Laruen 
math 140
You intend to create a college fund for your baby. If you can get an interest rate of 5.3% compounded monthly and want the fund to have a value of $123,875 after 17 years, how much should you deposit each month? $413.01 $7032.70 $319.14 $375.46
asked by Doran 
7th grade math
There are 48 students in a school play. The ratio of boys to girls is 5:7. How many boys are in the school play? Explain how you found your answer.
asked by Mercedez 
physics
A skier is pulled by a tow rope up a frictionless ski slope that makes an angle of 12 degrees with the horizontal. The rope moves parallel to the slope with a constant speed of 1.0 m/s. The force of the rope does 880 J of work on the skier as the skier
asked by Anonymous 
english
The Hudson River was one the chief trading route for the western frontier. The phrase is for the western frontier. Its an adjective phrase because it describes was once the chief trading route right?
asked by Anonymous 
english
Boulder Dam was the original name for Hoover Dam. The phrase is for hoover Dam. Is it an adjective or an adverb phrase?
asked by Anonymous 
geometry
Suppose a slice of a 10inch pizza has an area of 15 square inches.What is the angle of this slice? Make a sketch to illustrate your answer.
asked by Anonymous 
English 7 (answer quick)
What does it means what something say evaluate a person. Does it means I have to describe the person using adj.?
asked by Laruen 
english
Organized in 1884, the first African American professional baseball team was the Cuban Giants. Is was the Cuban Giants a phrase?
asked by Anonymous 
Statistics
There are 200 students in a sample. How many of these students will have scores that fall under the score of 41? Mean is 45, standard dev. is 4.
asked by Vicki 
Psychology Please Help!!
Both Albert's mother and father had dropped out of high school. His brother left school in the eighth grade. Based on the performance of his family members, Albert does not expect that he will complete high school. He had developed a(n): a. availability
asked by Anonymous 
english
The jacket with a blue collar is mine. What are the phrases?
asked by Anonymous 
english
My goal is to become a forest ranger. What are the phrases?
asked by Anonymous 
english
Guillermo hopes to visit us soon. What are the phrases?
asked by Anonymous 
english
On the sidelines, the coach paced nervously. What are the phrases?
asked by Anonymous 
physics
1kg salmon is hooked by fishermen and it swims off at 2m/s. The fishermen stops the salmon in 50cm by breaking his reel. How muchfroce does the fishing line exert on the fish?
asked by Agata 
math
subtract and simplify 3/4 minus 5/8
asked by pat 
english
The student, frowning slightly, erased the title. What are the phrases?
asked by Anonymous 
Math
During a checkers game, there are 16 pieces left. The ratio of black to red is 3:5. How many black pieces are on the board?
asked by Mercedez 
Reading
L. Frank Baum was born in New York in 1856. He is best known as the author of the book The Wonderful Wizard of Oz. Baum thought of the idea for his book one evening in 1899. He was making up a story to tell his sons and their neighborhood friends. He
asked by Mikka 
math
How do I find the length of curve f(x)=3x^22x+3 on the interval [1,4]? I have no idea on how to start this. Anyways, thanks in advance!
asked by W 
Physics
The average intensity of sunlight at earth's surface is approximately 1400 W/m^2 , if the Sun is directly overhead. The average distance between the earth and the sun is 1.50E11 m. What is the average power emitted by the Sun? Ok so intensity is power over
asked by Raquel 
physics
19. In Figure 101, if the force exerted on a 3.0kg backpack that is initally at rest is 20.0 N and the distance it acts over is 0.25 m, what is the final speed of the backpack?
asked by w 
english
The charity received donations for the hungry. Is received donations the predicate and for the hungry the phrase?
asked by Anonymous 
Math
Your heart bears 240 times in 4 minutes. What is your heart rate in beats per second? Explain
asked by Anon 
math
In the voting for city council precinct 5 only 1/2 of all eligible voters cast votes. Shelley 1/10 votes received and Daley 2/8 votes received. what fraction of all eligible voters voted for shelley? Daley? Who received the most votes? Thank you very much
asked by sarah 
English 7
What adj. is when someone drop out of school?
asked by Laruen 
calculus
Find the amount of a continuous money flow in which $175 per year is being invested at 8%, compounded continuously for 20 years.
asked by Jordan 
Jiishka
How do you put a webpage to this website?
asked by Luke 
Texas History
Which native tribes lived in the South Plains of Texas?
asked by Izzy 
phyisics
A computer to be used in a satellite must be able to withstand accelerations of up to 23 times the acceleration due to gravity. In a test to see if it meets this specification, the computer is bolted to a frame that is vibrated back and forth in simple
asked by christi 
Khan
A person lifts a 4.3 kg cement block a vertical distance of 1.3 m and then carries the block horizontally a distance of 5.3 m. The acceleration of gravity is 9.81 m/s 2 . a) Determine the work done by the person in the process. Answer in units of J
asked by Hajib 
math
tell which place value positions need to be regrouped after mutiplying a single digit and 2 digit number like 3x29
asked by Jeremy 
physics
A skier is slidding downhill at 8m/s. When she reaches an icy patch on which her sis move freely with negligible friction. The difference on altitude between the top of the icy patch and its bottom is 10m. What is the speed of the skier at the bottom of
asked by Agata 
english
I shivered, and ____________* again the moving thing upon the sandbank. *active voice,past tense of TO SEE
asked by stacey myers 
SOCIAL STUDIEs
Eli Whitney revolutionized indusrty in the north and south and impacted the Civil War. What 2 key innovations is he attributed with?
asked by Ana 
english, comics, mythology folklore
What are the changes between the real story of Emperor Norton and the story 3 septembers and a january
asked by cindy 
world history
what is the term for european nations seek colonies during World war one?
asked by Marta 
Science
What do polar bears and automobiles have in common?
asked by Grace 
geometry
the longer base of an isosceles trapezoid is 14 feet. the nonparallel sides are each 10 feet long and the length of diagonal is 16 feet. find the measure of a base angle
asked by Anonymous 
geometry
The width of a rectangle is 6 cm less than its length. If the area of the rectangle is 135 square cm, find the dimensions. Then find the perimeter of the rectangle.
asked by jay 
Geometry
What is the xintercept of the graph 4x6y=12?
asked by Lexana 
Science
Definition for Biofuel,Hydroelectricity,Geothermal,and wind energy
asked by Ana 
physics
A force of 10N is used to lift 600kg ball from the ground to the a height of 1.8m when it is let go. What is the speed of the bal when it is let go?
asked by Agata 
math
You borrow $90 from Grandma. You pay back $15 a week. Write an equation in standard form that represents the amount owed(y) after x weeks.
asked by Jackie 
Chem
How would one balance the following redox reaction using the half reaction method? Fe(OH)2 + O2 + H2O > Fe(OH)3 This is in my chemistry teacher's homework, and it comes up with an answer, but I don't see how to use the half reaction method when there is
asked by Jake UCD 11/15/11 
geometry
the means of a proportion are 4 and 17. List all possible oairs of positive integers that could be the extremes of the proportion
asked by dana 
language
Are the nouns in this sentence brains and watermelons? Their brains may be as big as watermelons.
asked by Dakota 
Pre Calc
tan(tan1 7.4)=?
asked by Jacob 
Pre Calc
sec(cos1 (4/5))=?
asked by Jacob 
finance
You have just graduated and one of your favorite courses was Financial Management. While you were in school, your grandfather died and left you $1 million. You have decided to invest the funds in a fastfood franchise and have two choices–Franchise L and
asked by kelly 
physics
A grocery shopper tosses a(n) 9.4 kg bag of rice into a stationary 19.9 kg grocery cart. The bag hits the cart with a horizontal speed of 7.0 m/s toward the front of the cart. What is the ﬁnal speed of the cart and bag? Answer in units of m/
asked by Anonymous 
Math
which amount is greates? 1/3, 1/4, 1/2 /16 of 12
asked by Xcequiel 
Chemistry
Glycine,C2H502N, is important for biological energy.Find the heat of combustion deltaHrxn. Delta H [C2H5O2N]=537.3 kj/mol DeltaH [ CO2(g)=393.5 kj/mol DeltaH[H2O(l)]285.8 kj/mol
asked by Nicole 
Chemistry
How many grams of CO2 would be produced from the following reaction sequence? HI + KHCO3 > KI + H2CO3 H2CO3 > H2O + CO2 if 20.0 ml of 1.00 M KHCO3 solution is mixed with 20.0 ml of 1.50 M HI solution.
asked by Kristi 
calculus
A parcel delivery service will deliver a package only if the length plus the girth (distance around, taken perpendicular to the length) does not exceed 104 inches. Find the maximum volume of a rectangular box with square ends that satisfies the delivery
asked by Anonymous 
physics
A 150L water heater is rated at 8kW. If 20%if its heat escapes, how long does the heater take to raise the temp of 150L of water from 10 to 60 degrees C
asked by Agata 
Biochemistry (BCMB)
why do plants already have ATP and NADPH for chemical energy from lights reactions of photosynthesis but they still go on to manufacture energyrich sugars?
asked by Amanda 
ANATOMY
place the following in order (111): Myosin heads bind to active sites on actin molecules ATP is hydrolyzed Myosin heads return to their highenergy shape(******), ready for the next working stroke Calcium ions bind to troponin Cycling continues until
asked by Katie 
SCIENCE
HOW MUCH HEAT ENERGY TRANSFERRED TO THE COLD WATER
asked by LINDSEY 
Physics
A 26kg girl is bouncing on a trampoline. During a certain interval after leaving the surface of the trampoline, her kinetic energy decreases to 220 J from 500 J. How high does she rise during this interval? Neglect air resistance.
asked by Gabby 
physics
A 25 g bullet traveling at 280 m/s passes completely through a wooden block, initially at rest on a smooth table. The block has a mass of 1000 g. The bullet emerges traveling in the same direction, but at 50 m/s. What percentage of total kinetic energy is
asked by Rebecca 
physics
how much force is exerted on a bag that is lifted at 5m/s^2 with 18.5kg in it
asked by zach 
science
HOW MUCH HEAT ENERGY TRANSFERRED TO THE COLD WATER
asked by LINDSEY 
science
HOW DOES ENERGY TRANSFER HAPPEN
asked by LINDSEY 
science
HOW DOES ENERGY TRANSFER HAPPEN
asked by LINDSEY 
science
HOW DOES ENERGY TRANSFER HAPPEN
asked by LINDSEY 
SCIENCE
WHAT IS EQUILIBRIUM
asked by LINDSEY 
chemistry
How much water must be added to 20liter of 12molar base solution to makt it 8molar?
asked by merlinda 
chemistry
How much water must be added to 20liter of 12molar base solution to make it 8molar?
asked by merry lyn