Questions Asked on
November 8, 2015

math
In a family with 4 children what is the probability of having 1 boy and then 3 girls, in that order? (Exclude multiple births and assume all outcomes are equally likely). In a family with 4 children, what is the probability of having 1 boy and 3 girls, in
asked by john 
math
A hacker is trying to guess someone's password. The hacker knows (somehow) that the password is 14 characters long, and that each character is either a lowercase letter, (a, b, c, etc), an uppercase letter (A, B, C, etc) or a numerical digit (0, 1, 2, 3,
asked by john 
math
The letters in the word MATHEMATICS are arranged randomly. What is the probability that the first letter is E? What is the probability that the first letter is M?
asked by hana 
math
Every cereal box has a gift inside, but you cannot tell from the outside what the gift is. The store manager assures you that 16 of the 58 boxes on the shelf have the secret decoder ring. The other 42 boxes on the shelf have a different gift inside. If you
asked by john 
calculus
assume x and y are functions of t. Evaluate dy/dt for 2xy4x/3y^3=48, with conditions dx/dt=6,x=3, y=2
asked by faye 
math
You own 19 CDs. You want to randomly arrange 9 of them in a CD rack. What is the probability that the rack ends up in alphabetical order? The probability that the CDs are in alphabetical order is ?
asked by hana 
math
A group of people were asked if they had run a red light in the last year. 325 responded "yes", and 294 responded "no". Find the probability that if a person is chosen at random, they have run a red light in the last year.
asked by maria 
prealgebra
A barrel shaped like a cylinder is laid on its side and rolled up a ramp. The barrel has a circular base that is 0.9m in diameter. If the barrel turns 37 times in being rolled up the ramp, how long is the ramp? Use the value 3.14 for π . Round your answer
asked by Jackie 
math
A bag contains 5 red marbles, 6 white marbles, and 8 blue marbles. You draw 5 marbles out at random, without replacement. What is the probability that all the marbles are red? The probability that all the marbles are red is? What is the probability that
asked by vicke 
Chemistry
How many moles of phosphorus atoms are in 100 grams of P4S10?
asked by Anonymous 
math
You’re piloting an airplane. To prepare for landing, you change the plane’s altitude from a feet to c feet. What expression always represents the distance between the two altitudes?
asked by Kennedy 
math
The 4th term of an Ap is 6. if the sum of the 8th and 9th terms is 72,find the common difference
asked by Bello Boluwatife 
Math Word Problem
A teacher from Anderson Middle School printed k nametags in preparation for the science fair. Half of the nametags were given out to students and 100 nametags were given out to parents. Threefifths of the remaining nametags were given out to teachers and
asked by Why? 
math
if the simple interest on a certain sum for 15 months at 7.5% per annum exceeds the simple interest on the same sum for 8 months at 12.5% per annum by Rs 32.5, then the sum is
asked by Haroon Gondal 
Mechanical behavior
An atomic force microscope cantilever, of rectangular cross section, has a length, l, of 200μm, a width, b, of 20μm and a depth, h, of 1μm. It is made of silicon nitride, which has a Young's modulus, E, of 300GPa. What is the maximum force that can be
asked by HELP 
chem
Calculate the potential for: Br2(l) + 2Cl(aq) → Cl2(g) + 2Br(aq) Use Eº = .300 V when the concentrations of the soluble species are as follows: [Cl] = 0.39 M, [Br] = 9.0x103 M, PCl2 = 8.5x102 atm
asked by moe 
Math
Inner length = 100 m, inner breadth =50 m, width of the border = 2 m
asked by Irfan 
Math
the function 160x/100x,models the cost,f(x), in millions of dollars,to remove x% of a river pollutants,if the government commits 240 million for this project, what percentage of pollutants can be removed?
asked by Jasminee 
Chemistry
Magnesia (MgO(s)) is used for fire brick, crucibles and furnace linings because of its high melting point. It is produced by decomposing magnesite (MgCO3(s)) into at around 1200oC Write a balanced equation for the magensite decomposition being sure to
asked by Kyson 
Chemistry
How would you balance this equation?? Ba(NO3)2 + NH2SO3H + H2O > Ba(NH2SO3)2 + HNO3 Would you have to make the H2O 0, ultimately removing H2O from the equation (is that even allowed?), or is there another way of balancing it??
asked by Georgia 
chemistry
Calculate ΔGo (in J) for 2 moles of electron(s) in each halfreaction and a standard potential of 0.44 V
asked by moe 
Organic Chemistry
How am I supposed to do these questions? I'm completely lost. A 0.120 M solution of an enantiomerically pure chiral compound D has an observed rotation of 0.12° in a 1dm sample container. The molar mass of the compound is 130.0 g/mol. (b) What is the
asked by Jeff 
math please help
This part I have: 1)Derive an equation for the bending deflection δ of the bat at B, where the ball hits the bat, in terms of the applied load, P, the span, lAB, the Young's modulus of ash, E and the moment of inertia of the cross section, I. Answer:
asked by HELP 
Algebra
How do I solve: Translate "y more than 4 is 36". Then solve the problem. Hope someone could help me out with this annoying question!
asked by Bob 
Algebra 2
Jack is selling wristbands and headbands to earn money for camp. He earns $2 for each wristband and $3 for each headband. He wants to earn at least $50. He needs to sell at least 5 wristbands. Which system of inequalities is shown in the graph of the
asked by Sandra 
math
a liquid storage container on a truck is in the shape of a cylinder with hemispheres on each end. the cylinder and hemispheres have the same radius. the total length of the container is 140 feet. I have got the funcion for the volume is y=2pi/3 x^3+ 140pi
asked by errer 
Chemistry
Enthalpy I'm given that the heat of reaction for the combustion of ethane is 1560kJ/mol. I need to figure out how much heat is produced from 18g of ethane. 2 C2H6 + 7 O2 > 4 CO2 + 6 H2O Okay so I'm rough on Thermo right now, so I gave it my best shot.
asked by Justin 
PreCalculus
Two lookout towers are situated on mountain tops A and B, 4 mi from each other. A helicopter firefighting team is located in a valley at point C, 3 mi from A and 2 mi from B. Using the line between A and B as a reference, a lookout spots a fire at an angle
asked by Samantha 
literature
A problem that may occur in nonfiction text is: A. the inclusion of anthropomorphism. B. the exclusion of teleological explanations. C. the exclusion of anthropomorphism and teleological explanations. D. the inclusion of anthropomorphism and teleological
asked by Bev 
chemistry
Styrene is produced by catalytic dehydrogenation of ethyl benzene at high temperature in the presence of superheated steam. (a) Find ÄH°rxn, ÄG °rxn, and ÄS °rxn, given these data at 298 K: (b) At what temperature is the reaction spontaneous? What
asked by Dalton 
Algebra
One type of anyifreeze is 40% glycol, and another type of antifreeze is 60% glycol. How much of each kind should be used to make 100 gallons of antifreeze that is 48% glycol? How do i show my work? Thanks
asked by Gabe 
Chemistry
Ammonia can be produced in a twostep process. First, nitrogen reacts with redhot magnesium to form magnesium nitride. Then magnesium nitride reacts with water to form magnesium hydroxide and ammonia. How many grams of magnesium would we have to start
asked by Anonymous 
please give me a site or answer!!!!
description of the population statistics LOCATION in South Carolina already found the age and race just having trouble with the location statistics please help!!!!!!
asked by Anonymous 
Math
which of the following represents the range of the function f(x)=4x+1 for the domain {5,1,0,2,10} A{39,7,1,5,21} B{41,9,1,5,21} C{19,3,1,5,21}***** D{41,9,3,19}
asked by Mike 
math
A hacker is trying to guess someone's password. The hacker knows (somehow) that the password is 14 characters long, and that each character is either a lowercase letter, (a, b, c, etc), an uppercase letter (A, B, C, etc) or a numerical digit (0, 1, 2, 3,
asked by john 
Math
Two ships are sailing in the sea on the two sides of a lighthouse. The angle of elevation of the top of the lighthouse is observed from the ships are 30 degrees and 45 degrees respectively. If the lighthouse is 100m high, the distance btn the ship is?
asked by Sunday 
Quick English check
Select the term that is best represented by each statement below. (The words are: admonish, advocate, bias, exposulate, influential, interaction, linguistic, susceptible, temperament, and wary.) 1. "I am a decided preference in favor of a particular side."
asked by Anonymous 
Chemistry
Enthalpy I'm given that the heat of reaction for the combustion of ethane is 1560kJ/mol. I need to figure out how much heat is produced from 18g of ethane. 2 C2H6 + 7 O2 > 4 CO2 + 6 H2O Okay so I'm rough on Thermo right now, so I gave it my best shot.
asked by Justin 
Chemistry
Enthalpy I'm given that the heat of reaction for the combustion of ethane is 1560kJ/mol. I need to figure out how much heat is produced from 18g of ethane. 2 C2H6 + 7 O2 > 4 CO2 + 6 H2O Okay so I'm rough on Thermo right now, so I gave it my best shot.
asked by Justin 
Math
A pack of cinnamonscented pencils sells for $6.00. What is the sales tax rate if the total cost of the pencils is $6.48? The sales tax rate is %.
asked by Ashley Aronson 
Organic Chemistry
What observed rotation is expected when a 1.44 M solution of (R)2butanol is mixed with an equal volume of a 0.720 M solution of racemic 2butanol, and the resulting solution is analyzed in a sample container that is 1 dm long? The specific rotation of
asked by Mary 
history
were Helen Keller and John Reed more or less patriotic than United States soldiers who fought in the military during the war? Explain.
asked by Julie 
math
If you randomly select a card from a wellshuffled standard deck of 52 cards, what is the probability that the card you select is a diamond or club? (Your answer must be in the form of a reduced fraction.)
asked by hana 
Social Studies
what was the purpose of the constitutional convention held in philadelphia in 1787? A.To sign the treaty of paris B.To select the nation's new president. C. to revise the Articles of Confederation D.to draft a declaration of independence My answer is c
asked by Ariel 
Chemistry
How many atoms of carbon are present in 49 g of a compound that is 54 . 1% carbon, by weight?
asked by Ashley 
Social studies
explain the reasons for the proclamation of 1763. The proclamation of 1763 was created on October 7, 1763 by king George the III. The proclamation of 1763 was an attempt to avoid the colonial balance with the Native Americans by creating Western
asked by Ariel 
Math
At a halftime show a matching band marched in formation. The lead drummer started at a point with coordinates (2,5) and moved 3 steps up and 1 step right. A. Write a rule to describe the translation B. What were the coordinates of the drummers final
asked by Anonymous 
maths
A motorcycle was purchased for Rs. 48000. If its value depreciates every year by 10%, calculate the total depreciation in its value at the end of 3 years
asked by yashdev 
phy
A certain CD has a playing time of 72 minutes. When the music starts, the CD is rotating at an angular speed of 4.8 102 revolutions per minute (rpm). At the end of the music, the CD is rotating at 2.1 102 rpm. Find the magnitude of the average angular
asked by nn 
Chemistry
In a copper cycle lab if I add HCl to CuO to produce CuCl, what would a word equation for that reaction be? Is it a chemical reaction? and also for that step what complexes are observed? what does that mean?
asked by Dan 
probability
Adefective coin minting machineproducescoinswhoseprobability ofheadsisarandomvariable P with PDF 1+sin(2πp), if p ∈ [0,1],fP (p)= 0, otherwise. Inessence,aspecificcoinproducedby thismachinewillhavea fixedprobability P = p of giving heads, but you do not
asked by Anonymous 
Chemistry
1. is it easy to distinguish between between the different oxidation states of copper? why? 2. You synthesized copper (I) chloride and copper (I) oxide. How do they differ from their copper (II) analogs? comment on the stability of these moist solids in
asked by Dan 
PHYSICSSS
The average velocity a golf ball hit with an iron is about 66.7 m/s. Calculate the maximum height and displacement of the golf ball if it is hit with a 45 degree 9 iron
asked by Joe 
math
adult tickets for a play cost $5.50 and a child ticket cost $3.50. They sold 550 tickets and collected $2139.00. How many adult tickets sold
asked by cheryl 
liberty college
I am in grade 12 and I have taken History, matches literacy, English language/ literacy,life science, business studies and economics, what course will these subjects allow me take in university? Regards Rita.
asked by Rita Petlane 
Physics
A "swing" ride at a carnival consists of chairs that are swung in a circle by 11.5 m cables attached to a vertical rotating pole, as the drawing shows. Suppose the total mass of a chair and its occupant is 204 kg. (a) Determine the tension in the cable
asked by Hannah 
chemistry
Suppose that 2.69 mol of hydrogen gas occupies a 64.6 L steel tank. At what temperature in °C will the pressure in the tank be 1,383 torr?
asked by heri 
early childhood
Which one of the following statements about literary elements is TRUE? A. The author should end the book with a closing comment to ensure that the story’s moral is conveyed. B. Setting is a backdrop that can be changed without affecting the plot. C. Good
asked by Bev 
Chemistry
In a copper cycle lab if I add HCl to CuO to produce CuCl, what would a word equation for that reaction be? Is it a chemical reaction? and also for that step what complexes are observed? what does that mean?
asked by Dan 
Chemistry
is it easy to distinguish between between the different oxidation states of copper? why? I answered yes because copper (I) is not as stable as copper (II), and there is a noticeable colour difference You synthesized copper (I) chloride and copper (I)
asked by Dan 
Conrady
A rental car agency charges $240.00 per week plus $0.25 per mile to rent a car. How many miles can you travel in one week for $435.00?
asked by Helmi 
Math
Using the formula lim h approaches 0 f(x+h)f(x)/h, find the derivative of f(x)=2x^2+4x
asked by Becky 
Chemistry
For each of the following experimental conditions determine whether molar mass would be: 1) too high, B) too low or C) unaffected. In each case, /explain/ how this result occurs a) after removing the flask from the water bath, the experimenter cools the
asked by S 
chemistry
the process of respiration, glucose is oxidized completely. In fermentation, O2 is absent, and glucose is broken down into Co2 and H2o. Calculate delta g for respiration of 1.00 g of glucose Calculate delta g for fermentation of 1.00 g of glucose. My
asked by Judith 
physics
A force is applied to a 2.9 kg mass and produces 2.7 m/s 2 acceleration. What acceleration would be produced by the same force applied to a 6.2 kg mass? Answer in units of m/s 2 .
asked by chris 
TBLS EDUCATION ACTIVITES
Provide a brief description of each of the following parts of life direction vision, setting goals, plan of action and discuss their importance. I need help please.
asked by poohpooh 
Physics
A stone weighs 34.0 N. What force must be applied to make it accelerate upward at 4.00 m/s2?
asked by Anonymous 
Chemistry
the process of respiration, glucose is oxidized completely. In fermentation, O2 is absent, and glucose is broken down into Co2 and H2o. Calculate delta g for respiration of 1.00 g of glucose Calculate delta g for fermentation of 1.00 g of glucose. My
asked by Judith 
Chemistry
Nitrogen can also be produced from sodium metal and potassium nitrate by the reaction: Na(s) +KNO3 (s) > K2O(s) +Na2O(s) + N2(g) If we generate oxygen by the thermal decomposition of potassium chlorate: 2KClO3(s) > 2KCl(s) +3O2(g) How many grams of
asked by Ka_Chin 
Chemistry
The thermal decomposition of carbonates leads to the loss of CO2. The decomposition of an unknown carbonate leads to a 35.1% weight loss. The unknown was which of the following compounds. A. Li2CO3 B. MgCO3 C. CaCO3 D. ZnCO3 E. BaCO3
asked by Anonymous 
physics
Three people attempt to hold a heavy sign in place. Abby pulls directly upwards (in the middle) with 140 N of force. Joe is ob Abby's left and pulls at a 30.0° to Abby's rope with a force of 180 N. Henry is on Abby's right and pulls at a 30.0° to Abby's
asked by Heather 
Calculus
Find the volume of the solid obtained by rotating the region under the graph of f(x)= 9x^2 for 0
asked by Rucha 
math
one hour is what percent of one week?
asked by jacquie 
technical college
inscribe a circle into the given triangle in which r=75degree, q=45 degree and qr=8.5
asked by oluaser 
Chemistry
How do I calculate the percent yeild of copper give the mass and concentration of Cu(NO3)2 and the final mass of copper
asked by Dan 
Chemistry (Ksp and Solubility)
Kindly answer my query as early as possible.Please solve the complete question A solution contains 0.01M Ag+ and 0.001M Ba+2 . ksp of Ag2CrO4 = 2.4*10e12 ksp of BaCrO4 = 1.17*10e10 A solution of K2CrO4 is added to this solution. Which will precipitate
asked by Bilal Asif 
geography
if you start at 10 degrees south latitude by 140 degrees west longitude and sail to 20 degrees north latitude by 105 degrees west longitude which general direction are you traveling?
asked by Anonymous 
8th grade pre algebra line segments
It's asking me to use a grid and lengths of line segments to give a geometric argument but I'm not sure what that means or looks like.
asked by Alexandria 
Is this cheating?
Hi so Friday, my friend wasn't quite understanding the assignment and nobody was allowed to talk in the classroom. So, she just asked to see my notebook to look if she was doing it right. The teacher walks over, automatically assumes she was
asked by Anonymous 
Calculus
Find the area of the region between the graphs of f(x)=3x+8 and g(x)=x^2 +2x+2 over [0,2]. My answer: 34/3
asked by Rucha 
Chemistry (Check)
Ammonia can be produced in a twostep process. First, nitrogen reacts with redhot magnesium to form magnesium nitride. Then magnesium nitride reacts with water to form magnesium hydroxide and ammonia. A. Write each balanced chemical reaction. B. How many
asked by Anonymous 
Chemistry (Check)
Ammonia can be produced in a twostep process. First, nitrogen reacts with redhot magnesium to form magnesium nitride. Then magnesium nitride reacts with water to form magnesium hydroxide and ammonia. A. Write each balanced chemical reaction. B. How many
asked by Anonymous 
Math
How many whole numbers between 100 and 1000 have 1 as the tens digit? Options are: 89 90 99 100
asked by SD 
physics
A spring and mass system are oscillating with an amplitude of 5.4 cm. The spring constant is 166 N/m and the mass is 540 g. Find the mechanical energy of the system
asked by diana 
Chemistry
For each of the following experimental conditions determine whether molar mass would be: 1) too high, B) too low or C) unaffected. In each case, /explain/ how this result occurs a) after removing the flask from the water bath, the experimenter cools the
asked by S 
health
i need to find a way to creatviley describe the path of the female reproductive system
asked by AS 
physics
A 40 N force is applied at an angle of 30o to the horizontal to pull a 6 kg box along the floor. If the coefficient of friction between the box and floor is 0.3.The box initially at rest moves a horizontal distance of 5m. What is the speed of the box when
asked by Prince 
English please help!
I really need someone to answer check my answers. If my answers are wrong please tell me what I did wrong. Cross out any prepositional phrases. Underline the subject once and the verb/verb phrase twice. 1.) After class give the teacher your paper.
asked by Littlelady 
Music
What are the Rhythmic and Melodic features of Dikrayati
asked by Hugo 
physics
The bird perched on the swing shown below has a mass of 41.6 g, and the base of the swing, y = 7.88 cm below the hook, has a mass of 147 g. The swing and bird are originally at rest, and then the bird takes off horizontally at 1.94 m/s. How high will the
asked by Jackson 
Statistics and probability
A psychologist tested the IQ in a sample of 36 children. Their mean IQ was 104. What is the probability of getting an IQ score of 104 or higher? The mean is 100, and the standard deviation is 15
asked by Echell 
chemistry
Assume that 268mL of 5.00M NaOH are diluted to a final volume of 574mL with water. What is the final molarity of NaOH (FM=40.0).
asked by Morgan 
Physics
A stone weighs 34.0 N. What force must be applied to make it accelerate upward at 4.00 m/s2?
asked by Anonymous 
Physics
Two buckets of sand hang from opposite ends of a rope that passes over an ideal pulley. One bucket is full and weighs 110 N ; the other bucket is only partly filled and weighs 65 N . You release the lighter bucket and the heavier one descends. What is the
asked by Luke 
Dynamics
A uniform rod m1 and having a length L is hanging vertically downward and pin supported at the center of mass of a roller (disc) which rides on a horizontal track. Assuming that the system was initially at rest find the initial acceleration of the roller
asked by Jonnie 
chem
A flexible container at an initial volume of 8.15 L contains 2.51 mol of gas. More gas is then added to the container until it reaches a final volume of 12.1 L. Assuming the pressure and temperature of the gas remain constant, calculate the number of moles
asked by keisha 
Simple algebra/Physics problem
A proton, moving with a velocity of vi, collides elastically with another proton that is initially at rest. Assuming that after the collision the speed of the initially moving proton is 2.90 times the speed of the proton initially at rest, find the
asked by PersonWhoNeedsHelp 
Calculus
Find the lim x→∞ of (ln(x))^2)/x using L'hospital's rule. I got  infinity when I did this, but I think I was looking at the numerator wrong when I took the derivative.
asked by Callie 
Math
This is the second part of a two part question for an online class. It gave me the degree and the zeros and I had to give the factored form. I got that part right, but I need to know how to get the expanded form from the factored form. I have several more
asked by James 
math
Every cereal box has a gift inside, but you cannot tell from the outside what the gift is. The store manager assures you that 16 of the 58 boxes on the shelf have the secret decoder ring. The other 42 boxes on the shelf have a different gift inside. If you
asked by vicke 
Mthombo
The perimeter of a quadrilateral pqrs is 30mm and its area is 50mm squered ,find the peremiter and area of quadrilateral pqrs if scale factor is 1/5
asked by Sihle 
Organic Chemistry 2
Compare the IR spectrum of benzoin ) with the IR spectrum of benzil . Explain how the changes in the important peaks are related to the differences between the two structures.
asked by John 
Organic Chemistry 2
What is the purpose of adding NaOH ot the reaction? This is the from our Benzil Lab.
asked by John 
Organic Chemistry 2
What is the impurity that must be removed from the benzaldehyde reagent before it can be used in this experiment? this is from are Benzil lab in this lab, benzoin condensation of benzaldehyde will be carried out with a biological coenzyme, thiamine
asked by John 
state poly
what is algorithm
asked by muktar 
Accounting
When Resisto Systems, Inc., was formed, the company was authorized to issue 5,000 shares of $100 par value, 8 percent cumulative preferred stock, and 100,000 shares of $2 stated value common stock. Half of the preferred stock was issued at a price of $104
asked by ryan 
Math
What is the ratio of boys to girls 2:3 if there are 160 boys how mayn girls are there?
asked by Ajey 
Phycis
What is the formular of (forced,Areaand pressure)
asked by Ajey 
Science
Can someone please help me with this problem? A 2001b block rests on a horizontal plane. Find the magnitude of the force P required to give the block an acceleration of 10 ft/s2 to the right. The coefficient of friction between the block and the plane is
asked by Latoya 
chemistryyy
how do i get from Molarity to % g / mL ??? I have a concentration of .2379 M.
asked by Anonymous 
Nursing
who and what influences the content of nursing courses?
asked by mossey 
Nursing
Who is involved in the development and design of nursing education?
asked by mossey 
Statistics
Team X has an average (mean) height of 70 inches and a standard deviation of 3 inches and Team Y has an average height of 67 inches with a standard deviation of 9 inches. Compare the two teams using this information and which team will have the tallest and
asked by Becky 
Math
Determine if the graphs of the equations are parallel, perpendicular, or neither: 4x – 3y = 6 8x – 6y = 9
asked by kalak 
math
1.5
asked by courtney 
Chemistry
You synthesized copper (I) chloride and copper (I) oxide. How do they differ from their copper (II) analogs? comment on the stability of these moist solids in air. If unstable, what is the likely product of decomposition? I'm not really sure where to go
asked by Dan 
Chemistry
Arrange the following in order of increasing mass: 1. one F atom 2. 1x10^20 mol of F 3. 1x10^20g of F 4. one F2 molecule A. 1
asked by Anonymous 
chemistry
How much pure calcium carbonate (100.09 g/mol) is required to produce 40.0 mL carbon dioxide gas according to the reaction used in this experiment? Your unknown will contain between 25100% calcium carbonate. Answer to 3 significant figures. Do not include
asked by chem 
MCA
arrange the decimals 5.1, 5.2, 5.3, 5.4, 5.5, 5.6, 5.7, 5.8 and 5.9 in the square grid with 3 colums and 3 rows pattern to make the sum of the numbers in each row, column, and diagonal equal.
asked by Gi 
Math
If it takes a old and hot tap 6 mins to fill a bath and on their own it takes the hot tap 100 secs more than the cold tap to fill bath. How long will it take the cold tap on its own to ill the bath
asked by Jerry 
Math
Using the formula lim h approaches 0 f(x+h)f(x)/h, find the derivative of f(x)=2x^2+4x
asked by Becky 
math, science
An atomic force microscope cantilever, of rectangular cross section, has a length, l, of 200μm, a width, b, of 20μm and a depth, h, of 1μm. It is made of silicon nitride, which has a Young's modulus, E, of 300GPa. What is the maximum force that can be
asked by HELP 
English
The oven has been turned off for an hour and thirty minutes. Phrase: turned off for an hour and thirty minutes Verb: had been Subject:oven The secretary and the accountant walked around and found the missing notebook in the trash can. Verb: walked Subject:
asked by Katlynn 
Math
4*6 : 419+1,950,250= : means divid
asked by Essy 
French
How do I make this passé composé J'aime toutes les saisons mais, l'automne est mon favori. L'automne n'était jamais trop chaud ou trop froid. Aussi, j'ai aimé le changement coloré des feuilles. Mon deuxième favori était le printemps parce que j'ai
asked by Cassidy 
math
Can someone check my answers & tell me what I did wrong if I did any? 1.) John paid $32 for 2 concert tickets & 1 program AND Romona paid $36 for 2 concert tickets and 2 programs. If all concert tickets were priced the same, how much did ONE concert ticket
asked by Emma 
AP Physics
A mystery surprise box is sliding down a ramp at a constant speed. The box has a mass of 55.0kg and the ramp makes a 40.0œ angle with the horizontal. What is the coefficient of kinetic friction between the box and the ramp? Please help asap. Thank you.
asked by Anna 
AP Physics
A large box has a mass of 500kg and the coefficient of static friction for the box and the floor is 0.45, and the coefficient of kinetic friction is 0.30. a. What is the minimum horizontal force needed to get the box moving? b. If you continue to push with
asked by Anna 
Chemistry
Which of the following nitrogencontaining compounds would supply the most nitrogen per gram of fertilizer? a. iron azide, Fe(N3)2, MW = 140 g/mol b. sodium azide, NaN3, MW = 65 g/mol c. potassium nitrite, KNO2, MW = 85.1 g/mol d. potassium azide, KN3, MW
asked by Anonymous 
Science
For each of the following experimental conditions determine whether molar mass would be: 1) too high, B) too low or C) unaffected. In each case, explain how this result occurs a) after removing the flask from the water bath, the experimenter cools the
asked by S 
ap physics
The acceleration due to gravity on the moon has a magnitude of 1.62 m/s. deal with a placekicker kicking a football. Assume that the ball is kicked on the moon instead of on the earth. Find (a) the maximum height H and (b) the range that the ball would
asked by Anonymous 
Physics
A marble and a cube are placed at the top of a ramp. Starting from rest at the same height, the marble rolls without slipping and the cube slides (no kinetic friction) down the ramp. Determine the ratio of the centerofmass speed of the cube to the
asked by Rob 
Physics
A ball is dropped from a building, after 2 sec another ball is thrown downward. After 6 sec the second ball overtook the first ball. Is the second ball has greater acceleration than the first ball? Explain.
asked by Mike 
Math
Please help me. 1/3% of 480=
asked by PJ 
English
Hi what is a counter agrument? Thanks
asked by Avery 
math
Let f(x)=(3x7)/(x+1) What is the range of f? Answer in interval notation. (The domain is (inf,1) U (1,inf)
asked by Anonymous 
mpc
A reasearcher wishes to be 95% confident that her estimate of the proportion of two individuals who travel over sea is within 4% of the true proportion. Find the sample necessary if in a prior study a sample of 200 people showed that 40 traveled overseas
asked by anonymous 
math
write the equation a) 250mg of a drug has a half life of 3 hours b) the population of acity with 34560 people growns 3% each year c) 100 people brought a new product the first month. the number of people who buy the product doubles every 5 months.
asked by XOXOX 
Chem
1) A saturated solution of the slightly soluble salt MA3 is 1.4 ×10^–3 M in MA3. What is its Ksp value? 2) A 20.0 mL sample of NaIO3 was treated with an excess of KI and HCl and the iodine produced titrated with 0.05125 M Na2S2O3. 19.35 mL of Na2S2O3
asked by Brad 
math
The base of a rectangular prism has a length of 13 inches and a width of 1/2 inch. The volume of the prism is less than 65 cubic inches. Find all possible heights of the prism. Show all your work as an inequality. THANK YOU!!
asked by kimie 
Chemistry
Calculate the number of ion 16g H2CO3
asked by Jia 
physics
Alice has a mass of 70.0 kg and her car has a mass of 1000.0 kg. Alice is sitting in parked car on the side of the road. The magnitude of the normal force exerted by the road on her car is? (use g = 9.81 m/s2)
asked by Sami 
Physics
A proton, moving with a velocity of vi, collides elastically with another proton that is initially at rest. Assuming that after the collision the speed of the initially moving proton is 2.90 times the speed of the proton initially at rest, find the
asked by PersonWhoNeedsHelp 
MBA ( accounting)
Identify several ways in which you currently use accounting information in your life as a student. Also identify several situations in which, while you are still a student, you might be required to supply financial information about yoursekf to others
asked by Munazza 
finance and accounting
Identify several ways in which you currently use accounting information in your life as a student. Also identify several situations in which, while you are still a student, you might be required to supply financial?
asked by Munazza 
Genetics/Bio
Having a hard time with these two questions. Processing of ribosomal RNA (rRNA) includes all of the following EXCEPT: 1. snoRNAdependent trimming. 2. snoRNAdependent nucleotide modification. 3. snoRNAdependent splicing. 4. snoRNAdependent cleavage.
asked by Hayley 
English
Has anyone read "The Destructors" who can help me with a few questions? My questions are: The mood on "The Destructors" is best described as humorous horrific adventuresome cold In "The Destructors" Greene uses a lot of ___ in the boy's language to enrich
asked by Lucy 
physics
An airplane travels 3900 km at 810 km/h, and then encounters a tailwind that boosts its speed to 950 km/h for the next 3000 km. What was the average speed of the plane for this trip? 3900+3000 6900 6900/8 862.5
asked by jesse 
math
If an airplane travels at a speed of 450 km/h, how many meters does it travel in 10 seconds?
asked by Anonymous 
Chemistry
It is common in this experiment for students to calculate percent yields for the reaction that are above 100%. Is this result a violation of the law of conservation of matter? I need help writing an essay based on this prompt.
asked by Eduardo 
Math
If n represents a number, write an expression for onehalf of three less than the number.
asked by Cynthia 
physics
two force vectors, f1 18N at 60 degree above the positive axis and F2 6.5N at 45 degree below the positive axis, are applied to a particle at the origin. what third force f3 would make the net force on the particle equal to zero
asked by Anonymous 
Grade 12 Chemistry
5.85gof Naclis Dissolvedin250mlofsolution.Calculatethemass%ofsolute?
asked by Minibel 
Physics "Simple" Energy Problem
Jonathan is riding a bicycle and encounters a hill of height 6.70 m. At the base of the hill, he is traveling at 5.00 m/s. When he reaches the top of the hill, he is traveling at 3.00 m/s. Jonathan and his bicycle together have a mass of 77.6 kg. Ignore
asked by PersonWhoNeedsHelp 
Algebra 2
Give the domain of the function. g(x)= x^31 I think the domain is all real numbers. Am I wrong? If so why?
asked by Jojo 
Chemistry
For each of the following experimental conditions determine whether molar mass would be: 1) too high, B) too low or C) unaffected. In each case, /explain/ how this result occurs a) after removing the flask from the water bath, the experimenter cools the
asked by S 
Math
Sue mom baked 12 cookies. Sue ate 3 for snack what fraction of the cookies did she eat.
asked by Tonya 
physics
Alkaline batteries have the advantage of putting out constant voltage until very nearly the end of their life. How long will an alkaline battery rated at 1 A ⋅ h and 1.58 V keep a 1 W flashlight bulb burning?
asked by carolyn 
math
write a partitive division story problem fo 45 divided by 3/5
asked by Kalyn 
physics
A heart defibrillator passes 10.0 A through a patient’s torso for 5.00 ms in an attempt to restore normal beating. Find the temperature increase caused in the 8.00 kg of affected tissue if all the energy heats up the tissue with a specific heat capacity
asked by carolyn 
physics
Lunar astronauts placed a reflector on the Moon’s surface, off which a laser beam is periodically reflected. The distance to the Moon is calculated from the round trip time. The taken for the laser pulse to travel there and back again can be measured to
asked by carolyn 
Math
Shiela spent $120 on a coat. She spent 2/3 of her remaining money on a dress. She's left with 1/5 of her money. How much he money did she have to begin with?
asked by Danielle 
Chemistry
I recently calculated for concentration needed to my solution to get 1.5MPa PEG 6000 and I got 0.05g PEG/g H2O but I don't know how to convert this to moles/ L which is more familiar to me and more easier for preparing solutions. Please help.Thank you
asked by KIM:Please help me! 
Geography
Why would countries be concerned with their population decreasing? Why would countries be concerned with their population increasing?
asked by Anonymous 
math
The length of a rectangle is 9 cm more than its width. If its perimeter is 56 cm,find length and its area?
asked by Savera Noor 
Geography
more developed countries do not have a population growth problem rather their population is steady or decrasing why
asked by Anonymous 
Government
What usually happens to the presidents incumbent party in the midterm elections?
asked by Anonymous 
match
a bowl contains 6 red,12 green and a number of blue ball.How many blue ball are in the if the probability of choosing a red ball in 1/6
asked by Aldred 
Mechanical behavior
This part I have: 1)Derive an equation for the bending deflection δ of the bat at B, where the ball hits the bat, in terms of the applied load, P, the span, lAB, the Young's modulus of ash, E and the moment of inertia of the cross section, I. Answer:
asked by HELP 
chemistry
why wouldn't HCl be a good acid to use to determine the solubility of a silver precipitate in acid soulution?
asked by Frank 
Geography
Why would countries involved in primary and secondary economic growth still have rapidly increasing population?
asked by Anonymous 
physics
an object of mass 10kg moves in a circle of radius 13m of uniform speed of 43m\s a) calculate the angular velocity b) the centripetal force
asked by cynthia 
early childhood
Day care professionals and teachers reinforce the importance of responding to literature as a pleasurable experience by: A. having the child retell the story after reading. B. asking “yes/no” questions after reading the story. C. asking specific recall
asked by Bev 
chemistry
calculate the mass in grammes of copper that will be deposited by dissolving 6.5g of zinc in copper tetraoxosulphate(vi) solution
asked by jer 
chemistry
a solution is known to contain Cl, NO3, NO2, and SO4 ions. which of these ions can be positively identified?
asked by Frank 
math
the point of intersection of the diagonals of a quadrilateral divides one diagonal in the ratio 4:5. is it parallelogram ?
asked by Afreen 
Hkl
when rounded to the nearest 10, am 20. I am an odd number. The difference in my digits is 1, am greater than 21, what number am l
asked by An 
math
graph the equation by tanslationg y=[x] y=[x+7]
asked by no of your business 
Geometry
The polar coordinates of the two opposite bordering points of a diagonal of a square are (6,3) & (2,3). What are the coordinates of the other two bordering points?
asked by Muhsina 
college
Select the properly punctuated sentence. a. Please let me know; when I may contact you. b. Please let me know, when I may contact you. c. Please let me know when I may contact you.
asked by Ann 
Math
Claudia is celebrating her birthday 18th. A year have 12 months. About haw many months lived Claudia in 18 years?.
asked by Maria 
math
A rectangular garden was planted measures 12 ft by 8 ft. You want to plant a border of roses around the garden of equal width with the same area as the garden. What should the width of the border of roses be?
asked by Angela 
Math  Arithmetic question
I have a question about the limits to Arithmetic problems, on my homework I've noticed that so far all of the arithmetic sequences limits are infinite (infinity or +infinity, I was just wondering if all the limits to Arithmetic problems are to an infinity
asked by Mary 
physics
a body travels from rest with acceleration 8ms find its velocity when it has covered a distance of 100m
asked by ezekel ayuba 
Chemistry
For each of the following experimental conditions determine whether molar mass would be: 1) too high, B) too low or C) unaffected. In each case, /explain/ how this result occurs a) after removing the flask from the water bath, the experimenter cools the
asked by S 
Geography
How was the US involved in the past in the internal affairs of Cuba and Haiti?
asked by Anonymous 
Government
Explain the primary/caucus system for nominating presidential candidates
asked by Anonymous 
math
A circular mirror is edged with a decorated plastic tape.If the radius of the mirror is 12.5cm.What is the length of the tape?
asked by tasneem 
Geography
What has been the US policy since the CUban Revolution toward refugees from Cuba? Answer : The US had long had a policy of accepting all refugees from Cuba What is the US Policy Today?
asked by Anonymous 
early childhood
Two features of nonfiction books for older readers that are often omitted in nonfiction for younger readers are the: A. index and the appendix. B. table of contents and the glossary. C. table of contents and the index. D. glossary and the index. d?
asked by Bev 
Children with Special Needs
Hello! So I have a question regarding a topic to do on Children with special needs, so I have researched and chose children with special needs. Now I want your help in choosing a research question for example “Is childhood anxiety a result of one’s
asked by Hello! 
Chemistry
Calculate the molarity of a solution prepared by dissolving 10.0 grams of NaOH and then diluting the solution to 500mL.
asked by Anonymous 
Physics
Two newly discovered planets follow circular orbits around a star in a distant part of the galaxy. The orbital speeds of the planets are determined to be 36.0 km/s and 50.6 km/s. The slower planet's orbital period is 7.78 years. (a) What is the mass of the
asked by Hannah 
Geography
Does the US have a responsibility to help the Cuban and Haitian people?
asked by Anonymous