Questions Asked on
February 14, 2013

physics
A pulley is suspended by a Cord (C). on one end of the pulley there is a 1.2 kg block and on the other is a 3.2 kg block.Determine the tension in this cord after the masses are released and before one hits the ground. Ignore the mass of the pulley and
asked by Anonymous 
Physics
A 0.03kg bullet is fired vertically at 200m/s into a 0.15kg baseball that is initially at rest. The bullet lodges in the baseball and, after the collision, the baseball/bullet rise to a height of 37m. (a). What was the speed of the baseball/bullet right
asked by Annie 
chemistry
find the heat energy needed to change 150g of ice at 15c to ice at 63c
asked by Lezlie 
Algebra 2
Your car gets 25 mi/gal around town and 30 mi/gal on the highway. a. If 50% of the miles you drive are on the highway and 50% are around town, what is your overall average miles per gallon? b. If 60% of the miles you drive are on the highway and 40% are
asked by Mia 
Math
Sam needs to cut a piece of sheet metal into 8 pieces. All the cuts are made in the same direction. It takes him 5 minutes to make each cut. How many cuts will Sam make? How would making a table help you find the number of minutes it took Sam to cut the
asked by Julie 
Physics
Joanne drives her car with a mass of 1000 {\rm kg} at a speed of 23m/s . Find a road friction force that is need to bring her car to a halt in 14s .
asked by Ericca 
finance
Assume a $1,000 face value bond has a coupon rate of 8.5 percent, pays interest semiannually, and has an eightyear life. If investors are willing to accept a 10.25 percent rate of return on bonds of similar quality, what is the present value or worth of
asked by susan 
Math
4. A rectangular prism measuring 7 ft by 8 ft by 4 ft. a. 224 ft^3 b. 112 ft^3 c. 232 ft^3 d. 116 ft^3
asked by The Dark Knight 
physics
Mass m_a rests on a smooth horizontal surface,m_b hangs vertically.If m_a=15.0kg and m_b=8.0kg, determine the magnitude of the acceleration of each block.
asked by Anonymous 
Physics
If a small planet were located 7 times as far as the Earth's distance from the Sun, it period is ___ earth years?
asked by Eve 
physics
An object is hanging by a string from your rearview mirror.While you are accelerating at a constant rate from rest to 30m/s in 5.5s , what angle theta does the string make with the vertical?
asked by Anonymous 
The Diary of Anne Frank
3. Read the following monologue from Scene 4 of The Diary of Anne Frank. ANNE: I’m trying. Really I am. Every night I think back over all of the things I did that day that were wrong . . . like putting the wet mop in Mr. Dussel’s bed . . . and this
asked by The Dark Knight 
physics
Two point charges of the same magnitude but opposite signs are fixed to either end of the base of an isosceles triangle. The electric field at the midpoint M between the charges has a magnitude EM. The field directly above the midpoint at point P has a
asked by shaun 
physics
charge q1=+4.00nc is located at x=0.200m, and q2 =+5.00nc is at x=0.300 m. what are the magnitude and directionof the net force exerted by these two charges ona negative point charge q3 = 0.600 nc placed at the origin ? I think I need to find the F of
asked by yanis 
HELP!!!
A light, inextensible cord passes over a light, frictionless pulley with a radius of 10 cm. It has a(n) 24 kg mass on the left and a(n) 6.1 kg mass on the right, both hanging freely. Initially their center of masses are a vertical distance 4.3 m apart. The
asked by Anonymous 
physics
The two masses on either side of the pulley, 2.2 kg and 3.6 kg, are each initially 1.8 m above the ground, and the massless frictionless pulley is 4.8m above the ground.What maximum height does the lighter object reach after the system is released? [Hint:
asked by Anonymous 
Spanish
1. Of the following verbs, which is a stemchanging verb? A.) merendar B.) beber C.) estudiar D.) sacar 2. We call these verbs stemchanging because A.) they have stems, leaves and petals. B.) they have a spelling change in the first part of the verb in
asked by Cassie 
math
how many different rectangles have an area of 5 square units?
asked by isabella 
chemistry
A 3.24L flask is filled with propane gas (C3H8), at 1.00 atm and 13.5°C. What is the mass of the propane in the flask?
asked by Madeline 
Math
Serena paid $20.20 for 36 rulers and folders. She bought 16 more folders than rulers. If each folder cost $0.50 more than each ruler, how much did each folder cost?
asked by Justin 
physics
A 50.0kg box is sliding on a rough horizontal floor, and the only horizontal force acting on it is friction. You observe that at one instant the box is sliding to the right at 1.5 m/s and that it stops in 2.5 s with uniform acceleration. What magnitude
asked by joe 
Phtsics
Two identical point charges are separated by a distance of 3.0 cm and they repel each other with a force of 4 X 10^5 N. What is the new force if the distance between the point charges is doubled?
asked by Adrian 
analytical chemistry
Write balanced netionic equations to describe: a. The oxidation of Mn2+ to MnO4 by ammonium peroxydisulfate [(NH4)2S2O8] b. The airoxidation of HAsO32 to HAsO42 c. The oxidation of Ce3+ to Ce4+ by sodium bismuthate (NaBiO3) Write balanced netionic
asked by Anonymous 
Plane Trigometry
You observe a plane approaching overhead and assume that its speed is 550 miles per hour. The angle of elevation of the plane is 16 degrees at one time and 57 degrees one minute later. Approximate the altitude of the plane.
asked by Horum 
physics
A child on a sled reaches the bottom of a hill with a velocity of 10.0 and travels 23.0 along a horizontal straightaway to a stop.If the child and sled together have a mass of 58.0 , what is the magnitude of the average retarding force on the sled on the
asked by caa 
Macroeconomics
Suppose GDP is $800 billion, taxes are $150 billion, private saving is $50 billion and public saving is $20 billion. Assuming this economy is closed, calculate consumption, government purchases, national saving and investment.
asked by Jess 
math
cotx+tan2x=cotxsec2x prove
asked by jhon 
Math
Tennis has 2 players,basketball 5 Fabio says that there are 3 times as many peoplein a basketball team as on a tennis team. Is he correct? Explain
asked by Jay 
Math
If one hundredth is divided into ten equal parts, each part represents one what? 1 decimal, 2 decimal point, 3 fraction, or 4 thousandth.
asked by Sky 
PreCal
The Kit Carson County Carousek makes 3 revolutions per minute. A.) Find the linear velocity in feet per second of someone riding a horse that is 22.5 feet from the center. B.) The linear velocity of the person on the inside of the carousel is 3.1 feet per
asked by Kacey 
Physics 212
Three equal point charges, each with charge 1.50\mu C , are placed at the vertices of an equilateral triangle whose sides are of length 0.300m . What is the electric potential energy U of the system? (Take as zero the potential energy of the three charges
asked by Paula 
Fundamentals of Chemistry
balance the equation by ion electron method. Fe^++ + MnO4 = Fe3+ +Mn2+ (acidic medium) please help me..!!
asked by Aboli 
math
find the perimeter of the actual object using the scale factor shown on the blueprint. each side is 3 centimeters long. 1cm=5m
asked by Taylor 
math
an urn contains 6 purple marbles and 4 pink marbles. a marble is drawn at random and not replaced. then a second marble is drawn. what is the probability that both marbles are purple?
asked by juju 
chemistry
The concentration of a certain ionic compound in aqueous solution is 0.186mol/L . It is only solute in the solution. The concentration of pottassium ions in the same solution ia 0.558mol/L. Explain why the concentrations of the ions in the solution are
asked by Deepa 
math
mudd flats is shaped like a rectangle 9 mi long and 4 mi wide. the town has a population of 66,290. find the population per square mile?
asked by brayan 
physics
An electric field of 210000 N/C points due west at a certain spot. What is the magnitude of the force that acts on a charge of 6.2C at this spot?
asked by shaun 
physics
A particle moving in a straight line with constant acceleration passing over a distance x,y,z in equal consecutive intervals of time (t). find the relations between x,y,z. Find the acceleration of the particle.
asked by motion 
Algebra
A rectangle has width w and its length is 4 units longer than 2 times the width, or 2w + 4. Write a polynomial for the area of the rectangle.
asked by Anonymous 
physics
An electrically neutral model airplane is flying in a horizontal circle on a 2.0m guideline, which is nearly parallel to the ground. The line breaks when the kinetic energy of the plane is 50 J. Reconsider the same situation, except that now there is a
asked by shaun 
english
what are the answer to these questionBased on what you have read so far, what is the one thing that always changes when a scene changes in The Diary of Anne Frank? (1 point) the Franks’ reason for hiding the passage of time the use of voiceover for
asked by TRAY 
physics
For a simple 15 upward ramp, what length would be needed for a runaway truck traveling 140 ?
asked by caa 
Chemistry
You weigh out 1.20 g of sodium carbonate monohydrate, dissolve it in water and react it with 15.00 mL of 2.00 M HCl. Write an equation for the reaction and calculate the expected mass of carbon dioxide that will be produced.
asked by Nathan 
Math
Adam wants to compare the fractions 3/12, 1/6, and 1/3. He wants to order them from least to greatest and rewrite them so they all have the same denominator. Explain how adm can rewrite the fractions.
asked by Ryan 
algebra 1
The formula for the height of a falling object is shown below, where h is the height of the object in meters, t is the time in seconds, and k is the height, in meters, from which the object began its fall. h = –4.9t² + k If a rock is dropped from a
asked by lily 
Math
Alice and Finn roll two number cubes. Which of the following rules will make the game fair? Alice wins if a total of 5 is rolled. Finn wins if a total of 9 is rolled. Alice wins if a total of 7 is rolled. Finn wins if a total of 8 is rolled. Alice wins if
asked by Jonathon 
Math
Mr. quark drove his car 314 miles in 6.5 hours. He used 12.7 gallons of gas. Find these rates
asked by Brittany 
Spanish please help
I have no idea how to do these. Will somebody please help. Thank you so much. 3. Fill in the blank with the correct verb form: yo/pensar. Yo __________ 4. Fill in the blank with the correct verb form: ella/entender. ella __________ 5. Fill in the blank
asked by Michael 
Life Orientations
Human factor that cause ill health?
asked by Jiskha 
physics
Each of the four circuits in the drawing consists of a single resistor whose resistance is either R or 2R, and a single battery whose voltage is either V or 2V. The unit of voltage in each circuit is V = 10 V and the unit of resistance is R = 8 Ω.
asked by Anonymous 
physical sciene
Two 2.2 kg physical science textbooks on a bookshelf are 0.15 m apart. What is the magnitude of the gravitational attraction between the books?
asked by Brandy 
English
Neither of the glasses _________ full of juice. A.were B.weren't C.was D.wasn't I think it is C...?
asked by Cassie 
Check/Help:WorldHistory
The Egyptian and Nubian Empires Essay Write a one paragraph essay on how developments in technology influenced the rise and decline of the Assyrian Empire. Technology helped the Assyrian Empire defend them selfs from being attacked. They used ironworking
asked by Unknown 
Math (Proof)
Prove that if ab = ac (mod n) and a is relatively prime to n, then b = c (mod n). Proof: a and n are relatively prime and from ab = ac(mod n), we have n(abac), so na(bc). Since (a,n)=1 (relatively prime), we get n(bc). hence b=c(mod n). But what if a
asked by Michael 
physics
If a protonand an electron are released when they 2.0X10^10m apart, find the initial accelerationof each of them. I know a=ke^2/mr^2 k = 8.99 x 10^9 e = 1.6 x 10^19 r = 2.0x 10^10 so what is the m ????
asked by yanis 
Math
The distance between second and third bases on a regulation baseball field is 30 yards. What is the length in inches?
asked by Anonymous 
Math on graphs
If 30 3rd graders owned birds, how many third graders were surveyed? Reptiles 5% Birds 5% Fish 10% Cats 35% Dogs 45% I did 5% of 30 = .05 x 30 = 1.5 30/1.5 = 20 third graders BUT I am thinking I am doing something wrong? Where did I go wrong? Should it be
asked by Sam 
chemistry
A 230 g sample of a compound contains 136.6 g of carbon, 26.4 g of hydrogen, and 31.8 g of nitrogen. The rest is oxygen. What is the mass percent of oxygen in the compound?
asked by Anonymous 
Financial
You buy 100 shares of XYZ at $40 per share.XYZ pays an annual dividend of $2 and offers an automatic dividend reinvestment plan.Assume that the dividend will remain constant over the next 5 years and that the stock will increase 5% each year.How much will
asked by Sara 
math
one last question: find the perimeter of the actual object using the scale factor shown on the blueprint. each side is 3 centimeters long. 1cm=5m
asked by Taylor 
chemistry Emergency TEST
1.How many moles of sodium oxide are produced when3.9 moles of sodium combine with excess oxygen. 2. Sodium chloride decomposes into elemental sodium and elemental chlorine.How many grams of chlorine will be produced if 39.4 grams of sodium chloride
asked by Christian 
physics
Two spherical objects are separated by a distance of 1.41 × 10^3 m. The objects are initially electrically neutral and are very small compared to the distance between them. Each object acquires the same negative charge due to the addition of electrons.
asked by shaun 
Phy113
Calculate the average traslation kinetic energy of a nitrogen molecule at 27 degree celcius
asked by Ugonnia 
Biology
Which chromosome is more exposed to sexlinked disorders X or Y chromosome? Why?
asked by Mengistu 
Trigonometry
Verify the identities. 1.) SIN[(π/2)X]/COS[(π/2)X]=COT X 2.) SEC(X)/CSC(X)= TAN X 3.) (1 + SIN Y)[1 + SIN(Y)]= COS²Y 4.) 1 + CSC(θ)/COS(θ) + COT(θ)= SEC θ (Note: Just relax through verifying/solving these nice fun looking math problems!
asked by AwesomeGuy 
Chemistry
find the heat energy needed to change 200 g of water at 4c to water at 88c
asked by Lezlie 
Physics
A parallel plate capacitor with plate separation d is connected to a battery. The capacitor is fully charged to Q Coulombs and a voltage of V. (C is the capacitance and U is the stored energy.) Answer the following questions regarding the capacitor charged
asked by Nicole 
Algebra
Multiply: (3x4)² It would be (3x4)(3x4). Would the answer be 9x²+16?
asked by Anonymous 
Physics
A certain substance has a dielectric constant of 2.8 and a dielectric strength of 18.0 MV/m. If it is used as the dielectric material in a parallelplate capacitor, what minimum area should the plates of the capacitor have to obtain a capacitance of
asked by Nicole 
math
a ball is thrown into the air at a speed of 96 feet/sec. The equation that expresses the height of the ball as a function of time is: h(t) = 16t2 + 96t + 5 How long does the ball stay in the air after it is thrown? (Round answer to the hundreths of a
asked by Erin 
Help please edu.
Young children with autism: A. Will never talk B. relate to people differently than typical children do C. get along better with older children D. like changes in their routine I think B am I correct
asked by Tony 
Phy113
At what temperature will the rootmeansquare speed of oxygen molecules have the value of 640 m/s? 1 kilom has a mass of 32kg.
asked by ugonnia 
Math help
If 20 3rd graders owned birds, how many third graders were surveyed? Reptiles 5% Birds 5% Fish 10% Cats 35% Dogs 45% I did 5% of 30 = .05 x 30 = 1.5 30/1.5 = 20 third graders BUT I am thinking I am doing something wrong? Where did I go wrong? Should it be
asked by Sam 
Spanish Please help
Will somebody please help? I don't know spanish that well. Thanks you. 14. Choose the most logical completion for the sentence. _________ la puerta. A.) Pienso B.) Pierdo C.) Cierro D.) Entiendo 15. Choose the most logical completion for the sentence.
asked by Michael 
World history; Check:P
Human Origins Essay Write a opinion paper on the most significant consequences of the Agricultural Revolution. The weather climate caused rising temperatures worldwide provided longer growing seasons and drier land for cultivating wild grasses. The
asked by Unknown 
math
What is the combined speed if a plane traveling at 500 km/hr has a tail wind of 50 km/hr?
asked by gia 
math
in a mathematics class half of the students scored 91 on an achievement test. with the exception of a few students who scored 47, the remaining students scored 7. which of the following statements is true about the distribution of scores? A: the mean is
asked by Taylor 
Physics
A parallel plate capacitor with plate separation d is connected to a battery. The capacitor is fully charged to Q Coulombs and a voltage of V. (C is the capacitance and U is the stored energy.) Answer the following questions regarding the capacitor charged
asked by Nicole 
math
a formula for calculating simple interest is I = Pr, were I is the interest earned in dollars, P is the principal or original investment, and r is the fixed rate of interest. If the amount of interest earned is $2.25 and the interest rate is 3%, what is P?
asked by sherry 
algebra 1
The formula used to convert temperature measurements from degrees Celsius (C) to degrees Fahrenheit (F) is shown below. F = 9/5C + 32 What is the Fahrenheit equivalent of 25 degrees Celsius? Round the answer to the nearest degree.
asked by Anonymous 
Algebra
Write the binomial 1 − 27b3 as the difference of cubes.
asked by LaShawn 
Maths very very simple
can someone tell me what the title of this proof is? a^2+b^2=c^2 im writing a paper on the Pythagorean theorem and this is the proof I would use to explain it to someone but idk the name of it. PLEASE help me out here.
asked by Corie 
physics.........
The waterfall "Angel Falls" in Venezuela is the world's tallest at h=979 m. Assume that the water's velocity on the top of the falls and on the bottom of the falls (after it hits the ground and begins to flow away) is equal, and that no total energy is
asked by please help me out!!!! 
chemistry
h2s + HNO3 >s+ no+H2O balance by oxidation number change
asked by bb 
trig
a lighthouse is located at point A. a ship travels from point B to point C. At point B,, the distance between the ship and the lighthouse is 7.5km. At point C the distance between the ship and the lighthouse is 8.6km. Angle BAC is 58 degrees. Determine the
asked by Danielle 
ALG 2 PLZ PLZ HELP
1.)The product of 14 and n is 28. Write the algebraic equation. 2.)Four times a certain number is the same as the number increased by 78 3.)A blue bike is $14 less than a red bike. The sum of their prices is $300. How much is the red bike 4.)Alex is six
asked by tyneisha 
chemistry
Exactly 50.0ml solution of Na2CO3 was titrated with 65.8ml of 3.00M HCl. If the specific gravity of the Na2CO3 solution is 1.25, what percent by weight of Na2CO3 does it contain?
asked by siari ann 
jones
I have a unscramble analogies worksheet that I can't answer. Here are the analogies: ________:judical branch [eempusr ructo] radius:______[meeairtd] brass instruments:_____[stoaercrh] _______:poem[anzsat] _______:pants[bowaerrd] thank yo
asked by john 
Chemistry
A solvent has a molar mass of 37.2 g/mol and a normal boiling point of 111.2 oC. The boiling point elevation constant, K b , for this solvent is 1.58 oC/m. If 18.7 g of a nonelectrolyte having a molar mass of 20.5 g/mol are mixed with 170.0 g of the
asked by John 
FInance
Assume that you have $10,000 which you plan to invest for 3 years. How much more would you have if you invested the funds at 10% with annual compound interest versus 10% with simple interest? No funds will be paid until the end of the 3rd year.
asked by Lindsey 
maath HELPPPP
a ball is thrown into the air at a speed of 96 feet/sec. The equation that expresses the height of the ball as a function of time is: h(t) = 16t2 + 96t + 5 How long does the ball stay in the air after it is thrown? (Round answer to the hundreths of a
asked by Erin 
Algebra 2
Serena paid $20.20 for 36 folders. She bought 16 more folders than rulers. If each folder cost $0.50 more than each ruler, how much did each folder cost?
asked by iesha 
Mechanics _ physics
A uniform bar 1m long is pivoted at the centre has a mass of 3kg. It is acted upon by a conquer which cause to possess an angular acceleration of 6rad/sec^2; calculate a. The moment of inertia of the bar b. The torque on the bar
asked by Precious 
physics
at birth,baby jordaan weighed 3kg and his length was measured to 0.40m.after a few months,baby's mass doubled.determine the new length
asked by Anonymous 
math
Amy has 80 photos for her scrapbook. If she can fit 4 photos on each page of the 15 pages she has, how many more pages does she need to buy?
asked by Anonymous 
physics
A skateboarder, with an initial speed of 2.4m/s , rolls virtually friction free down a straight incline of length 19m in 3.5m/s .At what angle theta is the incline oriented above the horizontal?
asked by Anonymous 
Education/Technology
The type of software that uses fields, records, and files to organize and display data is A) classroom management software. B) electronic spreadsheet software. C) database management software. D) word processing software. I think this is C, to me it makes
asked by Lori 
Sjava
Log x=log25+log4
asked by Mr 
Phsics
What is the terminal speed for an 77.0kg skier going down a 44.0 degrees snowcovered slope on wooden skis uk= 0.060? Assume that the skier is 1.70m tall and 0.300m wide.
asked by Tony 
chemistry
A saturated solution of NaCl (dissolved in water) has a concentration of 4.01 M at a given temperature. The solution has a volume of 1 L (1000 mL). If the water were to evaporate until the volume of the solution is 500 mL (and then stirred), what would the
asked by Avi 
Physics
The stored electrical energy of a 350μ F capacitor charged to 1.20×104 Volts is converted to thermal energy by discharging the capacitor through a heating element submerged in 548.0 g of water in an insulating cup. What is the increase in temperature of
asked by Nicole 
Math
Mr. quark drove his car 314 miles in 6.5 hours. He used 12.7 gallons of gas. Find these rates. gallons per mile
asked by Brittany 
stats of biologists
a manufacturer claims that the life time of a certain brand of batteries has a varaince of 5000(hours)^2. a sample of 26 has a variance of 7200(hours)^2. assuming that it is reasonable to treat these data as a random sample from a normal population, test
asked by Aboli 
Education/Technology
Syllabi, class outlines, and discipline reports are practical applications of A) systems procedures. B) spreadsheet functions. C) database functions. D) word processing packages. I answer is C, it sounds where all three of these would be, is this correct?
asked by Lori 
chmistry
balance each of the following chemical equations ,using the change in oxidation number method. cu +h2so4=cuso4+so2+h2o
asked by bb 
South America
Spanish Exploration?
asked by Callie 
physics..............
If you ever watch track and field at the Olympics, you'll notice that the starting points of the runners are not even if the race is run on a curve and the runners have to run in lanes. This is to offset the fact that the distances along each lane are
asked by please help me out!!!! 
Education/Technology
We anticipate that the next technology revolution will be A) virtual reality. B) wireless computers. C) voice input technology. D) 3D images. I think the answer is C, is this correct?
asked by Lori 
social studies
confucianism lost influence because__________ the sui and early tang dynasties . people wanted a more _________ escape that promised _________ from _________ (plz helppp)
asked by Anonymous 
Mechanics _ physics
A wheel rotating with an angular velocity of 16rad/sec is slowed to an angular velocity of 4rad/sec by an angular acceleration of 2rad/sec^2.find a. The angle turned in the process of slowing down b. The time required
asked by Precious 
algebra
0.15x+0.05(50000x)=5000
asked by Anonymous 
social studies
use the terms division of labor and assembly line in a paragraph about how these methods were used in business.
asked by Anonymous 
mathURGENT!!!!!!!!!!
find all ordered pairs of positive integers (x,y) that satisfy the following equation: x^y=2^64. please answer and explain how you got it!!!!
asked by don 
Calculus
Find the instantaneous rate of change of V with respect to r when r=100 V(r)=.2r^220r+600 using limit definition. Please show work for understanding, thank you :)
asked by Tori 
Speech 09
I'm posting this question again I really need to know if i am right or wrong please help Place the correct letter next to the item that matches it. A. Physical Barrier B. Mental Barrier C. Cultural Barrier D. Empathic Listening E. Listening for Information
asked by Darcy 
Math
Adam used 3/12, 1/6, and 1/3 to make a circle graph and colored each a different color. What fraction of the graph is not colored? Explain your answer.
asked by Ryan 
maths
a person observed from the top of a light house which is 80 m above the sea level that angle of depression of two ships are 45 degree and 60 degree. The two ships are on same side of the light house.They are in the line with the foot of the light
asked by Anonymous 
statistics
if a sample of a distribution of sample size 26 has a range of 56, then what would be an estimate of the sample standard deviation
asked by karen 
Mechanics
Find the moment L about a perpendicular axis through the rod at a distance L/3 from the centre of mass.
asked by Precious 
BIOLOGY PLEASE HELP!!!!!!!!!!!!!!!!
embedded protein in the electron transport chain where h+ ions flow back into the matrix of the mitochondria Crossword puzzle 11 spaces sixth letter is n cant figure it out?
asked by bob 
Physics
If the force of the road on the car's wheels, pushing it forward, is a constant 3.5 kN, and the car's mass is 2 kg, then how long will the car take to go from 15 m/s to 50 m/s?
asked by Adelaide 
English
Which of the sentences below using direct address is punctuated correctly? A.Please come with me, Sarah, and Tom, to pick Mom’s birthday present. B.Please come with me, Sarah and Tom to pick Mom’s birthday present. C.Please come with me, Sarah, and Tom
asked by Cassie 
Physics
Jo student undertakes a unique experiment with his calculator. He goes to the school roof that is 18.0 m above the ground. He throws the poor calculator upward with a velocity of 42 m/s. Assume that the calculator goes straight up and just misses the roof
asked by Sev 
math
A pump brings underground water up to ground level. The water flow is measured in litres per minute.The pump fills an 18 litre bucket in 7 seconds.what is the speed of the pump flow
asked by Roy 
chemistry
How many moles of water will produced at equilibrium be if there is 1.0 mole of carbon dioxide formed at equilibrium?
asked by Anonymous 
Education/Technology
To get instant feedback for assessment, such as physical education fitness, a music lab activity, or reading competency, students have been shown how to use A) scanners or punch cards. B) handheld computers or PDAs. C) desktop or laptop computers. D)
asked by Lori 
Phy113
At what temperature will the rootmeansquare speed of oxygen molecules have the value of 640 m/s? 1 kilom has a mass of 32kg.
asked by ugonnia 
Education/Technology
Productivity software that allows the student to create professionallooking pages with text, graphics, digital pictures, stylized headlines, and professionally prepared design elements is called: A) Desktop publishing software. B) Spreadsheet software. C)
asked by Lori 
biology
embedded protein in the electron transport chain where h+ ions flow back into the matrix of the mitochondria 11 spaces sixth letter is n cant figure it out?
asked by bob 
Drama
I'm just wondering why are the senses important in drama?
asked by James 
Chemistry
Need help on a lab results writeup. The lab is the synthesis and analysis of a transition metal complex. General reaction was stated as: Fe(III) + x(acac) > Fe(acac)x  we were to determine x by completing experiment. x = 1, 2, 3, 4... acac = 2, 4
asked by Leah 
 Social Studies
What might have been the opportunity cost for someone who decide to invest in the stock market in the 1920s?
asked by jania 
Phy113
At what temperature will the rootmeansquare speed of oxygen molecules have the value of 640 m/s? 1 kilom has a mass of 32kg.
asked by ugonnia 
mathsurgently needed
find the equation of circle if the line 2x  y +1 = 0 touches the circle at the point (2,5) and the center of the circle lies on the line x+y 9 =0
asked by Anonymous 
Science
I am doing a research project on The Bermuda Triangle. I need to answer three questions but I cannot think of any good research questions for The Bermuda Triangle, any ideas? Thanks!
asked by Emily 
physics
A moving particle encounters an external electric field that decreases its kinetic energy from 10360 eV to 7680 eV as the particle moves from position A to position B. The electric potential at A is 52.5 V, and the electric potential at B is +29.7 V.
asked by Anonymous 
physics
at birth,baby jordaan weighed 3kg and his lengh was measured to 0.40m.after a few months,baby's mass doubled.determine the nwe lengh
asked by Anonymous 
science
Describe the events that take place in the movement of fluid in the capillary beds. What forces are involved in the movement of fluid out of the capillaries and back in again? Where in the capillary does movement take place? What is the role of the
asked by paul 
alegebra
what is the square root of the gram molecular weight of O2 and CO2, (hint: periodic table) and which one will diffuse faster?
asked by jeannie 
physics
You are lying on the beach on a tropical island on the equator, watching the Sun set  what a beautiful scene! Immediately after the top of the Sun disappears, you stand up to watch the Sun set again. After the amount of time t=10 s the top of the Sun
asked by Anonymous 
Chemistry
1) Aldrin and dieldrin are pesticides that used to be allowed for the control of soil insects. In ontario, the maximum allowable total concentration of alrin plus dieldrin in drinking water is 0.7 ppb. If a 250mL sample of drinking water is found to
asked by Deepa 
morrisville
Problem 3: Baggage Name your source code file Bags.py. You will write a program that simulates the actions of luggage handling for a large aircraft. As bags arrive they are loaded into containers. Each bag has a different weight and each container can hold
asked by ama 
Psy
When newborns cheeks are stroked they will turn their heads in the direction of the stimulus. This explains which reflex? a. Sucking b. Swallowing c. Rooting d. APGAR
asked by SG 
biology
where do h+ ions accumulate in the mito chondria? 18 spaces 17th letter is c cant figure it out?
asked by bob 
Englsih
Can someone please proofread this essay? Totalitarianism Throughout World War 1 there were many totalitarian leaders that wanted to take over of a country. Leaders such as Stallin wanted to take over of a country forcing people to do what they told them to
asked by Mario Garcia 
science
Describe the events that take place in the movement of fluid in the capillary beds. What forces are involved in the movement of fluid out of the capillaries and back in again? Where in the capillary does movement take place? What is the role of the
asked by josh smith 
English
Why can there be “a surprising upside to life’s downturns”? A.They can make you a different person. B.They can keep you from becoming stronger. C.They can make you realize that you can get through anything. D.They can keep you from depending on
asked by Cassie 
Trigonometry
Verify/Solve the identities. 1.) SIN^1/2 X COS XSIN^5/2 X COS X 2.) Long problem, but it's fun to solve! SEC^6 X(SEC X TAN X)SEC^4 X(SEC X TAN X)
asked by AwesomeGuy 
physics!
In order to measure the length of a long flourescent ceiling lamp, a student makes a very small hole in a piece of paper, holds the paper above the floor, measures the distance between the hole and the floor, and finally measures the length of the light's
asked by please help me out!!!! 
World history
"As his power grows, Charlemagne proves himself a mastermind, next to military and civil government." In what ways?
asked by Ericka 
World history; Check:P
How's this so far? :) I kind of tried my best. Indo  Europeans Essay How did the religion of the Hebrews differ from many of the religions of their neighbors? Hebrews were monotheists they prayed to only one god, unlike their neighbors. Their neighbors
asked by Unknown 
Math
A bag contains 10 yellow, 15 blue and 5 red Marbles. Mark chooses a candy and doesn't replace it in the bag. Find P (neither blue)
asked by Anon 
Physics
Two particles each have a mass of 5.5 103 kg. One has a charge of +4.8 106 C, and the other has a charge of 4.8 106 C. They are initially held at rest at a distance of 0.88 m apart. Both are then released and accelerate toward each other. How fast is
asked by Donald 
Physics
We have a qubit in the state ψ>= √3/2 0>+ 1/2 1>, which we want to measure in the {Cos θ 0> + Sin θ 1>, Sin θ 0>  Cos θ 1>} basis. In order for the two possible outcomes to be equiprobable, what should be the value of θ in degrees? (Answer
asked by unknown 
Math
Is this correct Find the Range, is it 106 67 23 83 129 23 12923=106
asked by Gio 
algebra
explain how you solve 11x=3y=12 using 3x=9 as subsitution
asked by Alicia 
Calculus
Find the derivative of the function using the definition of a derivative. F(x)=squareroot(13x) Please show work for understanding, thank you! :)
asked by Tori 
Math
A basketball star earned $2,000,000 last year. He played in 64 games for an average of 42 minutes per game. Find these rates dollars per game dollars per minute of playing time
asked by Brittany 
english
I would like ur opinion on the book that I should read,,, should I read all good children? Is it worth it?
asked by Deepa 
3rd grade math
A 16 wheler truck has 16 tires. The cab of a 16 wheeler has 6 tires. how many tires are on 11 truck cabs?
asked by mythreyee 
Education/Technology
What software features are important in selecting classroom management software, based on the classroom academic software evaluation rubric? A) The list includes grade level, documentation, cost, help features, and ease of installation. B) The list
asked by Lori 
Math
A mother of triplets wants to buy gum balls the machine has two colors how much will it cost to get three gum apps the same color ?
asked by Charles 
english
1. Explain the expression "Sabbath lull" in paragraph one of the story. 2. Why does Oakhurst feel "they" might be after him? Who protected him from the fate of those other citizens hanging from the Sycamore tree? 3. How do both the Duchess and Uncle Billy
asked by bs 
Math
Why area is measured in square feet? And why is volume measured in cubic feet?
asked by Tammy 
Law
I am looking for a currect event in a newspaper article that I can relate to criminal law. Any suggestions..
asked by Vicky 
Education/Technology
Is concept mapping a type of word processing software?
asked by Lor 
Mechanics
Find the moment L about a perpendicular axis through the rod at a distance L/3 from the centre of mass.
asked by Precious 
Differential Equations
y'=2x+y. Find a solution whose graph is also an isocline.
asked by Brian 
Math
I have a question. If a classroom has a party but then 2 more classrooms of 20 each come and do the party with them then how many party things will they need more? Fyi all the classrooms have 20 in them
asked by awesomer than u 
Science
a 5kilowatt source powers a motor that is lifting a 30 kg mass straight up. how far will the mass move in 6 seconds
asked by Matthew 
statistics
Claim: The majority of adults like pizza. A sample of 400 randomly selected adults shows that 220 of them like pizza. Based on the given sample information, do you think that the above claim is true? Why or why not?
asked by terrie 
Math
Convert 720 inches to miles
asked by Anonymous 
college physics 1
The coefficient of static friction between a block of wood of mass 29.2kg and a rough table is 0.51. The table is slowly tilted until the block of wood starts to slide down the surface. At what angle of the table with respect to the horizontal does the
asked by april 
Math
Write the word form for 450, 708 Is it four hundred and fifty thousand, seven hundred and eight
asked by Joe 
physics
Now note that the following becomes good approximations as θ→0: sinθ≈θ sin2(π4−θ)≈12−c⋅θ (where c is some constant.) Use these approximations to estimate the probability of success of the two measurements as x→0 (as a function of x and
asked by unknown 
english
is this sentence correct? There are quite a few reasons for me taking a break during this period.
asked by anonymous 
business
Identify two companies that you believe integrate corporate social marketing in their overall strategic marketing plan
asked by quita 
Math
The school handyman measured the space needed for a new computer monitor in the science room at 20 3/4 inches. Which of these measures is not more precise? A. 20 1/2 inches B. 20 7/8 inches C. 20 15/16 inches D. 20 21/32 inches
asked by Anonymous 
math
solve the system by the elimination method: 3x2y=2 2x+4y=5
asked by Taylor 
Math
The school handy man measured the space needed for a new computer monitor in the science room at 20 3/4 inches. Which of these measures is NOT more precise? A. 20 1/2 inches B. 20 7/8 inches C. 20 15/16 inches D. 20 21/32 inches
asked by Anonymous 
math
Simplify using Pascal's Triangle: state a term number of formula and a value. What term number (Tn,r)is your answer? find the sum of row 12? I know that the sum is 2^12=4096, how would you find the term number?
asked by Josh 
Physics
You drop an object from atop a building and it takes 7.20sec before it hits the ground. Assume that there is no air resistance, how tall is this building?
asked by Arria 
3rd grade math
write greater than, lesser than, or equal: 25 cents  3/10 of a dollar.
asked by mythreyee 
Phy113
At what temperature will the rootmeansquare speed of oxygen molecules have the value of 640 m/s? 1 kilom has a mass of 32kg.
asked by ugonnia 
math
if the ratio of boys to girls is 3/4 and there are 49 students how many boys are there?
asked by lisa 
Science
Is it bad to use the computer if you have the flu? My head hurts because of the flu but will it be worse if I use the computer?
asked by 1234 
algebra 1
A ball is tossed upward with an initial velocity of 14.2 meters per second. The equation below shows the velocity (v) of the ball after t seconds. v = –9.8t + 14.2 After how many seconds is the velocity 0 meters per second? Round the answer to the
asked by Anonymous 
Biology
what molecule is released before acetyl coa enters the krebs cycle Doing cross word puzzle 13 spaces cant figure it out?
asked by bob 
maths
If a, b and c are sides of a triangle Then prove that 1≤ [(a^2+b^2+c^2)/(ab + bc+ca)]
asked by Anonymous 
Mechanics
An aeroplane propeller has a 100kg and radius of gyration of 0.6cm.find its moment of inertia.How large a torque is required to give it angular acceleration of 20rad/sec^2
asked by Precious 
Mechanics
An areoplane propeller has a 100kg and radius of gyration of 0.6cm.find its moment of inertia.how large a torque is required to give it angular acceleration of 20rad/sec^2
asked by Precious 
Chemistry
How much acid is needed to neutralize a 5L solution with a pH of 12.5. The acid available is 1 N HCL.
asked by Ryan 
health
In 2004, which ethnic or racial group was at a lower risk of suicide for people ages 65 or older? A. Hispanics B. Asian and Pacific Islanders C. NonHispanic Blacks D. NonHispanic Whites c
asked by heidi 
eco
Please explain, I am having a hard time with this. What will ocurr to average and marginal productivity once a technological innovation is presented to the production process?
asked by CHASEONE 
math
the input is 1 output is 2 input is 2 output is 5 input is 3 output is 10 input is 4 output is 17 input is 5 output is 26 what is the rule
asked by Angel 
math
solve the system by the elimination method: 4x=5y+24 5x=4y+21
asked by Taylor 
Math
Sierra buys 2 jars of honey at the Farmer's Market. She gets a discount of $1 for buying two jars at the same time. Write an algebraic expression to describe how much Sierra spends for honey at the Farmer's Market.
asked by Julie 
math
solve the system by the elimination method: 3x2y=2 2x+4y=5
asked by Taylor 
Math
Step by step convertion of inches to miles
asked by Anonymous 
Science
Can you please tell me the effects of human activities on ecosystems. Example Human Activity and Consequences....
asked by Sarah 
math
0.45 divide by 36
asked by bentereya 
Phy113
At what temperature will the rootmeansquare speed of oxygen molecules have the value of 640 m/s? 1 kilom has a mass of 32kg.
asked by ugonnia 
Phy113
At what temperature will the rootmeansquare speed of oxygen molecules have the value of 640 m/s? 1 kilom has a mass of 32kg.
asked by ugonnia 
math
Solve 8716.45=
asked by Gio 
eco
Please explain, I am having a hard time with this. What will ocurr to average and marginal productivity once a technological innovation is presented to the production process?
asked by CHASEONE 
Maths
The two digits of a 2digit number add up to 16. The smaller digit is in the ones place. What is the number
asked by Zen 
math
1 4/5 x 1 1/3 x 1 3/4=720/48 then I get 15 not sure it that is correct?
asked by Jared 
english
topic: Negative impact of teenagers usage on Facebook. Need to write a paragraph on this topic don't know what to say or how to start. Must have an introduction with a thesis statement.
asked by latoya 
math
in the given figure,QRSis a straight angle.If a=2c,c=2b,b=d/3,what is the value of d?plz help me plz
asked by tania sharmin 
math
how do I graph this inequality n
asked by kyle s 
math
Ms.plz i have school tomorrow plz.its my H.W.
asked by tania sharmin 
math
Which would be more beneficial for someone (who intends on going to a university) to take senior year of high school: AP Statistics or AP Calculus?
asked by Meg 
Pre Algebra
Mike spent $40 at the music store. He bought a cd for $20 and some cassettes for $4 each. How many cassettes did mike buy?
asked by Makayla 
CHEMISTRY
Ni(NO3)2.H2O+2KSCN WHAT IS THE PRODUCT?? WHAT COMPLEX IS FORMED ?
asked by COMPLEX FORMATION 
algebra
Can you please help me with this problem? 7x4x5=9x
asked by lisa 
chemistry
why cant Na be used to prepare H2?
asked by princess 
mathsurgently needed
There is a garden of apples and the profit from a garden of apple trees is given by f( x ) = 70 + 30 x^2  (1/3) x^3, where x = number of apples trees per acre. How many trees per acre will maximize the profit?
asked by Anonymous 
Math
Referring to the experiment of rolling two fair dice, let A be the event that the total is less than eight and let B be the event that the total is even. Draw a Venn diagram corresponding to this experiment and events A & B (using probabilities). 1
asked by Leslie 
Maths, find the Exact Value
have to find the exact value(so in fraction form.. like 1231231/41231 or something) of 2/3 + 3/4  2/11  5/21 I'm unsure of the working
asked by Aaron M 
Applied Calculus
Find the derivative of the function. g(t) = ((8t + 10)^2)*(((10t^2)  7)^3) I am supposed to use The Chain Rule. However, I am confused as to how to do this.
asked by Jacob 
English
Anyone know any quotes with adverbs in them?
asked by Mary 
math
what is 5% of $11,000.00 quarterly
asked by mary 
Mechanics
An aeroplane propeller has a 100kg and radius of gyration of 0.6cm.find its moment of inertia.How large a torque is required to give it angular acceleration of 20rad/sec^2
asked by Precious 
maths
Given equation F=9/5c+20 find fintercept
asked by M.Qamber 
Education
Is concept mapping a type of word processing software that helps with students with special needs?
asked by Lori 
eco
Please explain, I am having a hard time with this. What will ocurr to average and marginal productivity once a technological innovation is presented to the production process?
asked by CHASEONE 
math
multiplying mixed numbers 4 3/5 x 2/3= 23/5 x 2/3= 46/15? I am not sure it this is right I know that I can't simplify it, so I am thinking that it is 46/15
asked by Jared 
Hattie's Birthday Box
In Hattie's box, the granddaughter smells "a yuong farmer's stubborness, a pioneer mother's sorrow, and a wondrous wild and lasting hope." Name one event in Hattie's life that goes with each one.
asked by Celest 
english
can divining be replaced by doubting or realizing
asked by jj 
Math
the base of a triangle is the same as the height. what least whole number measurement for the triangle so that the area would be greater than144^2
asked by Aurora 
Math
I have to find the exact value(so in fraction form.. like 1231231/41231 or something) of a^4b^2/c^2 , a = (2/5)^2, b = (8/5)^5 c= (4/5)^10 I'm honestly not sure how to get around to doing it with working
asked by Aaron M 
Math
Referring to the experiment of rolling two fair dice, let A be the event that the total is less than eight and let B be the event that the total is even. Draw a Venn diagram corresponding to this experiment and events A & B (using probabilities). 1
asked by Leslie 
Mechanics
An aeroplane propeller has a 100kg and radius of gyration of 0.6cm.find its moment of inertia.How large a torque is required to give it angular acceleration of 20rad/sec^2
asked by Precious 
eco
Please explain, I am having a hard time with this. What will ocurr to average and marginal productivity once a technological innovation is presented to the production process?
asked by CHASEONE 
fractions
3/8 + 3/4 =
asked by wayne 
math
solve x (proportion) 2r:3t= x:6a
asked by Kevin 
Computer graphics
A scanner is used to?
asked by Abcde 
science
how can space change your weight in space
asked by kelsey