Questions Asked on
February 1, 2015

Physics
You are given two unknown point charges, Q1 and Q2. At a point on the line joining them, onethird of the way from Q1 to Q2 the electric field is zero . What is the ratio Q1/Q2?
asked by Anonymous 
Chemistry
The formation constant of [M(CN)4]^2 is 7.70 × 10^16, where M is a generic metal. A 0.150mole quantity of M(NO3)2 is added to a liter of 0.840 M NaCN solution. What is the concentration of M2 ions at equilibrium?
asked by shyamjp 
physics
You are constructing a mobile out of 5 identical toy helicopters, each of mass m = 25.3 g, 4 identical sticks (each length l = 21.2 cm, and negligible mass), and thin string of negligible mass. The distance from the lefthand side of each stick to the
asked by BK 
Chemistry
The age of wine can be determined by measuring the trace amount of radioactive tritium, 3H, present in a sample. Tritium is formed from hydrogen in water vapor in the upper atmosphere by cosmic bombardment, so all naturally ocurring water contains a small
asked by Anonymous 
physics
Water is lifted from a well of depth 50m. If mass of water is 20kg and that of the rope is 0.2kg per metre the amount of work done is
asked by simar 
Physics
A golfer, standing on a fairway, hits a shot to a green that is elevated 5.50 m above the point where she is standing. The ball leaves her club at an angle of 37.0° above the ground, with a speed of 31.1 m/s. Find the time that the ball is in the air
asked by Tanner 
physics
a projectile with a horizontal component of 13m/s and a vertical component of 18 m/s would have an overall velocity of m/s??? at and angle of ?? above the horizontal. Can you please help me fill in the two blanks thank you
asked by greoge 
Not a subject for courseoff topic question
Hello, I don't know where else to post the question but since this website has many teachers helping students and probably the appropriate place to ask.  So today I was just thinking about the past in my life and
asked by John Doe 
Math
Will, Micah, and Sue went to dinner. Will paid 1/3 of the dinner bill. Micah and Sue paid in the ratio 2:5. If Sue paid $6 more than will, how much di the dinner cost?
asked by Isabella 
4th grade math
There are 112 seats in the school auditorium. There are 7 seats in each row. There are 70 people seated, filling up full rows of seats. How many rows are empty? We added and got 189 then divided by 3. But it doesn't look correct. How do we show the work?
asked by Ali 
Chemistry
Estimate the rate of the reaction, H2SeO3 + 6I + 4H+ Se + 2I3 + 3H2O given that the rate law for the reaction at 0°C is rate = (5.0 × 10^5 L5mol5s1)[H2SeO3][I]^3[H+]^2 The reactant concentrations are [H2SeO3] = 1.5 × 10^2 M, [I] = 2.4 × 10^3 M,
asked by Is my answer right? 
Chemistry
Determine the molarity of a 15.0 % by mass Hydrogen Peroxide solution. The density of Hydrogen Peroxide is 1.054 g/mL. The 15.0% by mass can be broken apart into 15.0 g Hydrogen Peroxide and 100.0 g solution. Use the density of Hydrogen Peroxide solution
asked by Jenna 
Physics
In exercise physiology studies, it is sometimes important to determine the location of a person's center of gravity. This can be done with the arrangement shown in the figure below. A light plank rests on two scales that read Fg1 = 440 N and Fg2 = 320 N.
asked by Angela 
Math
Carlos has 32 iris bulbs and 40 tulip bulbs to plant. He wants to plant them in rows with one type of bulb in each row. He wants all of the rows to have the same number of bulbs. The greatest number of bulbs he can plant in each row is?
asked by Calista 
Chemistry
Estimate the rate of the reaction, H2SeO3 + 6I^ + 4H^+ > Se + 2I3^ + 3H2O given that the rate law for the reaction at 0°C is rate = (5.0 × 105 L5mol5s1)[H2SeO3][I]^3[H+]^2 The reactant concentrations are: [H2SeO3] = 1.5 × 102 M [I] = 2.4 ×
asked by Anonymous 
Social Studies
witch result of the compromise of 1850 did not benefit the north? athe fugitive slave law bcalifornias admittance tt he union cending the slave trade in the district of columbia dnew mexico not being designated as a slavery trade Is it a?
asked by Kaitlyn 
chemistry
what statements are true for the standard entropy change for the conversion of ozone to oxygen? Select all the apply? 2 O_3 (g) > 3 O_2 (g) Molecular factors predict an increase in entropy Stoichiometric factors predict a decrease in entropy. Molecular
asked by mar 
Political Science
In Marbury v. Madison, the Supreme Court established the principle of constitutional review by? I am seconding guessing myself on my answer so can you point me the right direction is it: claiming that Section 13 of the 1789 Judiciary Act providing that the
asked by Martin 
Math
I am a parent and need help with this problem so I can show my daughter how to complete. A recipe calls for 8 cups of flour. The amount of flour is 10 cups less than twice the amount of milk. Write and solve an equation to find the amount of milk in the
asked by Dana 
Math
You have 100 pieces of candy in five bowls. The sum of candy in bowl a and bowl b is 30 pieces. The sum of candy in bowl b and c is 36 pieces. The sum of candy in bowl c and bowl d is 49 pieces of candy. The sum of bowl d and bowl e is 47 pieces of candy.
asked by Bruce 
physics
a copper cylinder has a radius of 2.5 cm and a length of 5.6 cm at 20 degree Celsius. The rod is heated until its temperature is 85 degree Celsius. Find the density at 85 degree Celsius.
asked by Vans 
4th grade math
Jake wants to distribute 543 marbles equally among 7 of his friends. In what place is the first digit of the quotient?
asked by Ali 
4th grade math
A park guide plans the swan boat rides for 40 people. Each boat can carry 6 people at a time. What is the best way to interpret the remainder of 40/6 in this situation so that everyone gets a ride? How do I show the work?
asked by Ali 
chemistry
5.6g of organic compound on burning with exess oxygen gave 17.6g of CO2 and 7.2g of H2O .the organic compound
asked by Anonymous 
algebra
Assume that the growth of the membership of a country club was linear from 1996 to 2000 with a membership of 214 in 1996 and a rate of growth of 730 per year. write an equation for the membership P of this country club as a function of the member of years
asked by Anonymous 
geometry
A model is made of a car. The car is 7 feet long, and the model is 16 inches long. What is the ratio of the length of the car to the length of the model? 4:21 7:16 16:7 21:4 I think it is C.
asked by jade 
math
The measures of two complementary angles are in the ratio 1:4. What are the degree measures of the two angles? 18° and 72° 22.5° and 67.5° 36° and 144° 45° and 135°
asked by nyla 
writing
Need help with Achieving a Readable Style. Memorandum TO: Jerry Bradshaw DATE: March 29, 2011 FROM: Bill Jones SUBJECT: The Best Approaches in Alternative Fuel Research Purpose Alternative fuels are becoming an important area of research. There are two
asked by Glenn 
Math problems
a farmer plants .6 0f a field with peanuts. the field is 5.6 acres in size. how many acres are planted with peanuts
asked by Jared 
L.A.
To which sense do the following lines from "Grandma Ling" appeal? and there I faced my five foot height, sturdy legs and feet square forehead, high cheeks, and wideset eyes A. hearing B.taste C. sight D. smell 2. which word best describes the tone of the
asked by Anonymous 
georgia state history
Which statement BEST describes the power of government provided by the Articles of Confederation?
asked by jam 
chemistry
Please help?! if 600 mL of a 0.04M KCl solution is mixed with 50mL of a 0.03M Na2SO4 solution, will a precipitate be formed? Explain your reasoning and/or show all calculations?
asked by ryan 
Math 201
The most convenient test point to use to determine if the points in a region defined by y
asked by Alex 
Science
A swimmer that pushes the water back with feet and arms what is the reaction force? What is the action force? What will happen to the movement of the swimmer as they push the water back? If the swimmer exerts 5 n of force on the water how much force does
asked by BUBBLES 
Thermodynamics
A 196g aluminum calorimeter contains 530 g of water at 19.8° C. Aluminum shot with a mass equal to 273 g is heated to 100.0° C and is then placed in the calorimeter. Find the final temperature of the system, assuming that there is no heat transfer to
asked by Nick 
physics
a car has a mass of 820 kg. It starts from rest and travels 41 m in 3.0s. What is the net force applied to the car?
asked by none 
Geometry
Solve each equation below by completing the square: 1) x^2 + 6x = 16 My steps: x^2 + 6x  16 = 0 (x  2 )(x + 8) x = 2, 8 I set it to zero and factored it out. But my teacher said not do it that way and do it by dividing by 2 but I don't understand how
asked by Ann 
Physics
Eddie the Eagle, British Olympic ski jumper, is attempting his most mediocre jump yet. After leaving the end of the ski ramp, he lands downhill at a point that is displaced 62.2 m horizontally from the edge of the ramp. His velocity just before landing is
asked by Tanner 
jiskha review
Hello my name is am i am making a review on this site. Jiskha is a wonderful, excellent and spectacular site to go to for school help. Jiskha helped me birng my grade up from a 60 to an 80. If I asked a question and i had a quick response. Jiskha does not
asked by jam 
chemistry
how many moles are present in 2.45 x 10²³ molecules CH₄?
asked by may 
Political Science
If the Supreme Court were to rule that gay marriage is a fundamental right, under the Equal Protection Clause of the Fourteenth Amendment, that would mean?
asked by Martin 
Political Science
In Gibbons v. Ogden, the Supreme Court held that?
asked by Martin 
Physics
A projectile is launched with an initial speed V0. At its highest point, the projectile's speed is V0/2 . What was the launch angle above the horizontal? (in deg)
asked by Tanner 
Physics
A(n) 0.42 kg softball is pitched at a speed of 12 m/s. The batter hits it back directly at the pitcher at a speed of 27 m/s. The bat acts on the ball for 0.016 s. What is the magnitude of the impulse imparted by the bat to the ball? Answer in units of N ·
asked by Monica 
Algebra
The difference of two numbers is 12. The sum of the larger number and 3 times the smaller number is 20. Find the larger number.
asked by Anonymous 
science
On a frictionless air track, cart A hits cart B moving at a velocity of 2 miles per second to the right. Which answer predicts what will happen?
asked by deja 
Algebra 2
Solve square root of 795x =6x+4 (Keep your answers in simplified improper fraction form)
asked by Izzy 
math
ram weighs 45kg and mary weighs m kg. write an expression for their combined weight.
asked by priyanka 
Chemistry
Determine the mass (in grams) of Malonic Acid (C3H4O4) present in 10.0 mL of a 0.200 M solution.
asked by Amanda 
Help with Psychology
One student conducts a study on the relationship between people’s level of extroversion and the number of close friends they have. He computes Pearson’s r, which comes out to be – 1.70. Which of the following is most clearly true? A. The relationship
asked by Mariya 
science
Calculate the molarity of a solution which contains 6.456g of Na2CO3 dissolved in 250.0 ml of solution.
asked by Steph 
Algebra
The Manhattan Island cruise Company sold 57 tickets for its Circlethe Island Cruise. Each adult had to pay $22 for the cruise and each child had to pay $10. If the company's total receipts were $774. How many children went on the cruise?
asked by Anonymous 
chemistry
In an acidbase titration, 33.12ml of 0.1177 M H2C2O4 was titrated with 0.2146 M NaOH to the end point. What volume of the NaOH solution was used?
asked by Steph 
Science
jellyfish sometime squeeze in the size of their bodies. this pushes a stream of water from the back end of their bodies. according to newtons third law of motion, how will this behavior affect the movement of the jellyfish? a. The jellyfish will move
asked by John boy 
chemistry II
What is the molarity of a solution of acetic acid if 35.00mL is titrated to the end point with 68.20ml of 0.750M KOH? What is the percentage by mass of acetic acid solution? The density of acetic acid is 1.06 g/ml
asked by Steph 
essay
feeling healthy
asked by jaafar 
essay
how to prepare for a job
asked by jaafar 
Chemistry
Determine the mass (in grams) of a 1% solution of Manganese(II) Sulfate that will contain 0.0403 grams.
asked by Bethany 
Chemistry
Determine the moles of Potassium Iodate present in a 0.267 m Potassium Iodate solution assuming you have 1 kg of solvent (H2O) present.
asked by Jenna 
Healthcare Finance
You are considering starting a walkin clinic. Your financial projections for the first year of operations are as follows: Revenues (10,000 visits) $400,000 Wages and benefits 220,000 Rent 5,000 Depreciation 30,000 Utilities 2,500 Medical Supplies 50,000
asked by Tyanna 
Healthcare finance
You are considering starting a walkin clinic. Your financial projections for the first year of operations are as follows: Revenues (10,000 visits) $400,000 Wages and benefits 220,000 Rent 5,000 Depreciation 30,000 Utilities 2,500 Medical Supplies 50,000
asked by Tyanna 
Chemistry
If you had a mixture of sodium chloride and sodium bromide, could you use its conductance to determine the concentration of each solute? Explain.
asked by Mary 
english
hi, i am not good at english literature at all, i want a 5 pages story on micheal faryn novel spies. it is about details on how life was for civilians at time of world war 2. assingment should include information on rationing evacation blackoutand gas
asked by asha 
Healthcare finance
You are considering starting a walkin clinic. Your financial projections for the first year of operations are as follows: Revenues (10,000 visits) $400,000 Wages and benefits 220,000 Rent 5,000 Depreciation 30,000 Utilities 2,500 Medical Supplies 50,000
asked by Tyanna 
chemistry
A sample of 131 I was purified and then analyzed for iodine content. It was found that the sample was 99.8% pure. 25 hours later the sample was tested again and it was found that the sample was now just 78.2% pure. What is the half  life of 131 I?
asked by zac 
Chemistry
The primary route for making copper iodide is by reacting potassium iodide with copper sulfate: 2CuSO4 + 4KI + 2Na2S2O3 ==> 2CuI + 2K2SO4 + 2NaI + Na2S4O6 Identify potential green chemistry and green engineering challenges of the reaction.
asked by Henry 
Science
suppose a male mouse is Bb and a female is bb. What percent of the mice offspring from these two mice would you expect to have black fur?
asked by Student 
physics
A block of mass 3.17 kg is hanging from a rope. The tension in the rope is 12.9 N, pulling upward on the block. What is the magnitude and direction of the acceleration of the block?
asked by Emily 
math
The sum of the first 10 term of an arithmetic sequence is 145 and the sum of the fourth and ninth term is five times the third term. Determine the first term and constant difference.
asked by matso 
Algebra
A pizza chef made and sold a total of 100 pizzas that were either cheese or pepperoni. The cheese pizza's were $9 each and the pepperoni pizzas sold for $11 each. If the total receipts were $1026, how many pepperoni pizzas did he sell?
asked by McCormick 
chemistry
The following experimental data were obtained for the reaction; 2 NO + 2 H2 ¡æ N2+ 2 H2O Rate/105M/s [NO]/102M [H2]/102M 0.50 0.50 0.20 2.00 1.00 0.20 0.25 0.25 0.40 Write a rate law in agreement with the data. Rate = What is the value and units of
asked by jhon 
Chemistry Rate Reaction
What is the rate of the reaction: H2SeO3 + 6I + 4H+ Se + 2I3 + 3H2O given that the rate law for the reaction at 0°C is rate = (5.0 × 10^5 L5mol5s1)[H2SeO3][I]^3[H+]^2 The reactant concentrations are [H2SeO3] = 1.5 × 10^2 M, [I] = 2.4 × 10^3 M,
asked by Jenny 
Setswana
Kwala Tlhamo ka setlhogo sa "Setshaba se se sa somareleng puo ya sona se tshwana le setlharr se senang medi
asked by Nomazizi Nzima 
chem
Calculate the wave length in amsrong unit of the first spectra line in the bama series for Li2 take R= 109766rcm i tried using this formular 1/lander = Z^2R(1/n1^21/n2^2) then Z is 3, n1 = 2 n2= 3
asked by whyte 
Math
A hardware store will deliver up to 6 items for a $25 delivery charge. There is a charge of $4 for each additional item to be delivered. a. Write a piecewise function for the cost of having x items delivered. b. What is the charge to have 14 items
asked by Anonymous 
Math
A jug holds 3.75 liters of water. How many millimeters can fit into the bottle
asked by KE 
Substitution
There are 155 people at the basketball game. Tickets for the game are $2.50 for students and $4 for adults. If the total ticket money received is $492.50 how many students and adults attended the game?
asked by Myah 
Physics
A 6.5kg bowling ball thrown with a speed of 5.4 m/!@#$%^&s a stationary 1.75kg pin. What is the velocity of each object? Assume that the coefficient of restitution is 0.75.
asked by Joanna 
Science
Hello please help me with another question!  One fruit fly is heterozygous for long wings, and another fruit fly is homozygous for short wings. Long wings are dominant to short wings. Using a punnett square, find out what percent of the offspring are
asked by Student 
statisics
A major hurricane with wind speeds of 111 per hour or greater. During the last century the mean number of major hurricanes to strike a certain country mainland per year was about 0.45. Find the probability that in a given year exactly one major hurricane
asked by shana 
Maths Problem
I still don't get it..please help, The average of two numbers is 81. The difference between the number is 26. What is the smaller number?
asked by Sarah JJ 
Math
Harrison says that to convert a mixed number to a fraction greater than 1, he thinks of it this way: 4 2/5= 5/5 + 5/5 + 5/5 + 5/5 + 2/5 = 22/5. Does this strategy work? Explain
asked by Amari 
Physics
Suppose you have a 5nC charge T the origin and a 2nC charge at x=5m. Find the location on the x axis where the electric field is 0. (Find finite coordinate location)
asked by Macy 
Math
I am a parent trying help my son, who has trouble understanding and remembering how to work his math. I never had this math, so it is hard for me to explain it. If I see it worked out. Then I can explain it, (I Think) here is the problems. A ball is tossed
asked by Stacie 
PHYSICS
without air resistance maximum range of projectile is obtained with an angle of ???? Can you please fill in the blank THANK YOU
asked by greoge 
4th grade math
Amanda and her four sisters divided 1,021 stickers equally. About how many stickers would each girl receive? How do I show my work?
asked by Ali 
concept development
Choose the best example of a specific task assessment. A. Give a child two groups of marbles: a group of five and a group of eight. Then ask the child which group has more marbles. B. Ask a fiveyearold child to clean the play area in 10 minutes. C. Ask a
asked by Cristina 
Math
Proove that: a)2^(1/2) is not rational. b) prove that 2^(1/3) is not rational. I have managed to prove the first part, but i am stuck on the second can someone give me an hint please?
asked by arthur 
Algebra
Tom has a $20 bill, a $10 bill, a $5 bill, and $1 bill. List the total costs possible for items he could buy if he receives no change.
asked by George 
4th grade math
The school choir has 48 singers with high voices, 53 singers with middle voices, and 39 singers with low voices. the singers stand in 4 equal rows at concerts. How many singers are in each row? How do I show my work for this?
asked by Ali 
math
How many revolutions does a merry go round make during 6,5 min if its average rotation speed is 2,4 r.p.m?
asked by lerato 
Precal
Is y=2 x 5^x a monomial function?
asked by Anonymous 
physics
Using the following number: 26,802 In 4 significant figures, this number would be Answer. In 3 significant figures, this number would be Answer. In 2 significant figures, this number would be Answer. In 1 significant figure, this number would b
asked by diana 
Math
Write the equivalent fraction. 6 2/5, 3 7/10
asked by Amari 
Algebra
I am a parent trying help my son, who has trouble understanding and remembering how to work his math. I never had this math, so it is hard for me to explain it. If I see it worked out. Then I can explain it, (I, Think) here is the problems. A ball is
asked by Stacie 
Physics
1) If = 2.0 cm, due E and = 5.0 cm, due W Determine: a) R = A + 2B b) V =  2A  B c) F = 3A  B My Answers R= 8, V= 1, F= 1 Is this correct and how do you know when direction it's going to be?
asked by Sam 
Spanish Help
Hi! Can someone check my answers to make sure that I am doing these right? Thanks so much! :) Directions: Match the command to the correct Spanish command. 1.) Listen! (friend) 2.) Listen! (you guys) 3.) Don’t listen! (stranger) 4.) Don’t listen!
asked by Tonya 
phy
5. A boat capable of making 9.0 km/hr in still water is travelling upstream in a river flowing at 4 km/h. An object lost overboard is not missed for 30 minutes. (a) If the boat is then turned around, how long will it take to overtake the floating lost
asked by ma 
Physics
Riding in an elevator, a man notices that he feel heavier or lighter based when the elevator speeds up or slows down. He stands on a bathroom scale in the elevator to take some measurements. Assume that his mass is 85 kg. a. What is this man’s weight
asked by Madison 
Genetics
One fruit fly is heterozygous for long wings, and another fruit fly is homozygous for short wings. Long wings are dominant to short wings. Using a punnett square, find out what percent of the offspring are expected to have short wings.
asked by Student 
Chem
a solution is prepared by dissolving 0.47 g of a solute in 12.7 g of cyclohexane what is the boiling point
asked by Joe 
science
Why is graphite considered an element?
asked by tommy 
Chem
a solution is prepared by dissolving 0.47 g of a solute in 12.7 g of cyclohexane what is the freezing point change
asked by Joe 
math
x_1=3/2, x_(n+1)=3/(4x_n) prove that the series x_n converges and find its limit.
asked by moran 
Math
.85km/s=m/min
asked by Kim 
physics
A hammer falls from a scaffold on a building 50.0 m above the ground. Find its speed as it hits the ground.
asked by Anonymous 
science answer fast please!
Could a molecule contain only one atom? Explain your answer.
asked by tommy 
math
Thom has a scale model of his car . The scale is 1:12 . If the actual car has 16inch weeks,what size are the wheels on the scale model?
asked by jessica 
writing
memorandum help. help to make this better readable for the viewer. Purpose Alternative fuels are becoming an important area of research. There are two main reasons researchers are looking for a new and reliable fuel source. The first is to combat the
asked by Glenn 
fundamental concept and skills
Which approach to literacy best connects mathematics and science to the real world? A. Balanced reading B. Phonics C. Whole language D. Structured reading c.
asked by Cristina 
math
br+bv+ry+vy
asked by Somruethai 
English
Posted by rfvv on Wednesday, January 28, 2015 at 7:45pm. 1. I wish I were good at ja dance. 2. I wish I were good at ja dances.  Which on is grammatical? English  Ms. Sue, Wednesday, January 28, 2015 at 7:48pm Sorry  but I don't know what
asked by rfvv 
CHEM
what is the mass percentage if you dissolve 0.659 mol of citric acid, C6H8O7, in 1.00 kg of water.
asked by BOB 
statistics
A professor gave an aptitude test to a class of psychology students and computed the mean, median, and mode for the test scores. Which of the following statements cannot be an accurate description of the scores? All of the above statements are false. The
asked by Sally 
physics
A swimmer can swim 1.7 mph in still water. She decides to swim upsteam against the current which is 0.7 mph. It will take the swimmer ___ hours to travel 8 miles as measured by a person standing on the river bank.
asked by diana 
Chemistry
Determine the number of grams of Potassium Iodate present in 10.0 g of a 0.267 m Potassium Iodate solution.
asked by Bethany 
Physics
A cannonball is shot upwards with a total velocity of 61.0 m/s at an angle of 45 degrees from the horizontal. What will its total velocity be when it has moved 345 m horizontally from where it started?
asked by Brittany 
FIN370
You are considering investing in a security that will pay you $1,000 in 30 years. If the appropriate discount rate is 10 percent, what is the present value of this investment?
asked by Rosemary 
physics
A(n) 0.42 kg softball is pitched at a speed of 12 m/s. The batter hits it back directly at the pitcher at a speed of 27 m/s. The bat acts on the ball for 0.016 s. What is the magnitude of the impulse imparted by the bat to the ball? Answer in units of N ·
asked by Kev 
English
moveto know how others feel and why feel that way  Is the definition of "move" "to know...."? Is the definition grammatical? eg. His speech moved people in the hall. English  Writeacher, Saturday, January 31, 2015 at 12:31am No, in that
asked by rfvv 
Physics
In a particular crash test, an automobile of mass 1295 kg collides with a wall and bounces back off the wall. The x components of the initial and final speeds of the automobile are 25 m/s and 1.5 m/s, respectively. If the collision lasts for 0.11 s, find
asked by Kevin 
8th grade Science please help
Why is soda in an unopened bottle a homogenous mixture?
asked by tommy 
English
* move as in: his speech moved many people in the conference. 1.to know how others feel and why feel that way 2. to cause somebody to have strong feelings, especially of sympathy or sadness (from a dictionary)  I found the
asked by rfvv 
mathematical literacy,business studies and tourism
What job field could I get from those subjects above?
asked by liza magutywa 
georgia state history
Why did Augusta, Columbus, Macon, and Milledgeville become early centers of commerce in Georgia?
asked by jam 
Physics 131
A 2.72 ìC charge is placed at the center of a conducting spherical shell, and a total charge of +6.35 ìC is placed on the shell itself. Calculate the total charge on the outer surface of the conductor.
asked by RB 
physics
A friend plays an A note (440 Hz) on her piccolo while running towards you at 40 m/s. What frequency do you hear just before she runs into you? I am not sure where to start on this problem. I wrote down the givens: fs=440 hz, vs=40 m/s, v=343 m/s. and I'm
asked by Sarah 
physics
An astronaut visits a moon of Saturn, and decides to measure the accel. of gravity. He ties a rock (m=2 kg) to a rope (1.25 m), pulls the rock back 10 degrees, and releases it into simple harmonic motion. What is the accel due to gravity on the moon? (*I
asked by Alexis 
physics
Imagine a grandfather clock. When the clock swings all the way to the right it 'ticks', when it swings all the way to the left it 'rocks'. If you wanted the time between the tocks and ticks, what length should the pendulum be? And, if you took the pendulum
asked by Sarah 
science
An astronaut visits a moon of Saturn, and decides to measure the accel. of gravity. He ties a rock (m=2 kg) to a rope (1.25 m), pulls the rock back 10 degrees, and releases it into simple harmonic motion. What is the accel due to gravity on the moon? I
asked by Sarah 
Physics
A spring fixed to a wall is attached to a 6 kg block of wood on the other end. The block rests on a frictionless surface. The spring with spring constant 100 N/m is compressed by 0.1 m and releases. With what frequency and period will the block/spring
asked by Sarah 
English
What is the English word for this device on which a smartphone can be put so that people can watch videos on the phone?
asked by rfvv 
physics
The effective k of the diving board shown here is 1675 N/m. A heavy diver is bouncing up and down at the end of the diving board. With what frequency does he bounce up and down? How long does it take for him to complete one bounce (up and down)? What is
asked by Alexis 
Science
How are mass and inertia related? How do you calculate momentum? Please help
asked by BUBBLES 
Intermediate College Algebra
The larger of two numbers is ten more than twice the smaller number. The sum of the numbers is forty. Find each number.
asked by Alecia 
History
The judicial branch has the power to try criminal cases by ____ I don't have any options, and I am not sure.
asked by Katt 
English
Can you check my answers to see if they are right and if not, help me on it? These questions begin with the paragraph starting with "Now was heard again the clangor of music ...." 1. In the first two paragraphs, the narrator conveys his mood of the
asked by Jessica 
Physics
An object fired at an angle of 31.9° above the horizontal takes 2.55 s to travel the last 15.5 m of its vertical distance and the last 10.5 m of its horizontal distance. With what speed was the object launched? (Note: This problem does not stipulate that
asked by Charlie 
Physics
A batter hits a baseball so that it leaves the bat with initial speed of 40 m/s, at an angle of 60°. Tom Brady throws an incomplete pass at an initial speed of ~ 60 miles/hour (mph). When the ball was released, it’s initial velocity made an angle of
asked by Anonymous 
Criminal Law
Summarize all of the steps between arrest, pretrial, trial, and appeals (both state and federal appeal possibilities). Explain the contingencies for each stage of the proceedings and address all possible outcomes. Analyze how constitutional protections
asked by Anonymous 
physics
a particle is subjected to two displacement as follows: 30m to the northeast and 40m to northwest. what must be third displacement if the particle is to end up at the starting point
asked by raph 
Physics
Three vectors of lengths A = 45.6, B = 24.2, and C = 30.4. The angles are θa = 29.6° and θb = 57.5°, and C points along the negative yaxis. Determine the length of the vector A  C. Calculate the angle of this vector. Determine the length of the
asked by Paige 
Algebra
find the slope of a line that is perpendicular to the line containing the points (2,1) and (2,3) a.m= 2 b.m= 2 c.m= 1/2 d.m= 1
asked by Anonymous 
Math 201
The length of a rectangle is 5 cm more than its width. What are the possible dimensions of the rectangle if the area must be at least 84 cm^2 ? (2 marks)
asked by Alex 
Economy
What is the cost of producing 100 units of output for a firm with a production function given by F(k,l)=10(min(2k,l))^0.5? Assume that r=20 $/unit and w=10 $/unit
asked by qwerty 
chemistry
Stuck on this questions ?! please help The solubility of barium sulphate, BaSO4, is 2.4 x 104 g/100 mL of solution. Calculate the Ksp of this solution.
asked by ryan 
Economy
Consider a competitive firm that can sell its products at a price of p=10 $/unit. It's variable cost function is given by VC(q)=q^2/1000, and it has SFC=FC=$1000. What is the amount supplied by the firm?
asked by qwerty 
Economy
Consider a competitive firm with a total cost function given by TC(q)=q^2/1000. Suppose that, in order to incentivize higher production, the government decides to refund firms for their cost of producing the FIRST q units produced, up to 1000 of them. What
asked by qwerty 
chemistry
I have no idea how to go about this question, please help! A clumsy chemist accidentally pours 100 mL of a 0.004 M Na2SO4 solution into a beaker containing 500 mL of 0.050 M CaCl2. Will a precipitate be formed? Explain your reasoning and/or show all
asked by ryan 
chemistry
In 100 mL of distilled water,1.0g of thallium cholirde is added. How much of the 1.0g of TlCl doen't dissolve. The Ksp of TlCl is 3.6 x 106.
asked by ryan 
Chemistry
How do you change 15% to moles
asked by Jenna 
PYHSICS
Vector A with arrow is directed along the positive yaxis and has magnitude 9.0 units. Vector B with arrow is directed along the negative xaxis and has magnitude 4.0 unit. (a) What are the magnitude and direction of A with arrow + B with arrow? magnitude
asked by LAIALI 
physics
A 130 cm length of string has a mass of 3.94 g. It is stretched with a tension of 8.60 N between fixed supports. What is the wave speed for this string?
asked by hayley 
precalculus
Solve the triangle α = 27 degrees 30', c = 52.8, a = 28.1
asked by anon 
English
Chapter 24 Scarlet letter Please tell me if these are correct or not The narrator characterizes Chillingworth by means of A. An allegory B.A Simile C.An allusion D.A metaphor E. An Anecdote I say D The narrator implies that the difference between hatred
asked by Jessica 
Political Science
In Gibbons v. Ogden, the Supreme Court held that? In Chapter 7 Federal Authority and the Limits to State Authority. If I am understanding right that the 10th Amendment trumps the Interstate Commerce Clause. I am I right?
asked by Martin 
math
1/4 of the Tshirts are pink, 1/2 Tshirt are white what remainder of the Tshirt is purple
asked by patrice 
physics
A small block is released from rest at the top of a frictionless incline. The distance from the top of the incline to the bottom, measured along the incline, is 3.70 m. The vertical distance from the top of the incline to the bottom is 1.67 m. If g = 9.80
asked by Mike 
chemistry
Co2(aq)>Co2(g) calculate the freeenergy change for this reaction at 25 degrees Celsius.
asked by mar 
Physics
In a particular crash test, an automobile of mass 1295 kg collides with a wall and bounces back off the wall. The x components of the initial and final speeds of the automobile are 25 m/s and 1.5 m/s, respectively. If the collision lasts for 0.11 s, find
asked by monica :) 
Science
How is mass and inertia alike
asked by BUBBLES 
Math
An airplane in Australia is flying at a constant altitude of 2 miles and a constant speed of 600 miles per hour on a straight course that will take it directly over a kangaroo on the ground. How fast is the angle of elevation of the kangaroo's line of
asked by Dee 
english
how does imagery help build the theme ,words can be powerful, in "A Barred Owl"?
asked by Jen 
physics
A 25 kg cannon ball is fired from a cannon with muzzle speed of 1520 m/s at an angle of 35.5 ◦ with the horizontal. The acceleration of gravity is 9.8 m/s 2 . Use conservation of mechanical energy to find the maximum height reached by first ball. Answer
asked by keegan 
chemistry
sucrose change of H is 2226.1kj/mol fructose change of H is 1265.6KJ/mol calculate the enthalpy change for the hydrolysis reaction of sucrose. sucrose + H2O(l)> C6H12O6(s)+Fructose Is it just the productsreactants?? I'm confused.
asked by mar 
georgia state history
Which of these would have been a goal of the Ku Klux Klan in the south during Reconstruction? A) making sure Reconstruction went smoothly B) assisting the scalawags and carpetbaggers C) ensuring that freedmen had the right to vote D) restoring southern
asked by jam 
English
8 Sentences, packed with descriptions, details, and examples. A verbal video of your room. i am trying to write about my daughters room. need help. my daughters room has a wide closet filled with clothes. frozen pink carpet in front of her white bed.
asked by kelly 
Mixture science help
Which type of mixture has the largest particles? Explain how you know.
asked by gothgirl 
Chemistry
Can someone please help me solve this problem? Calculate the solubility of Ba3(PO4)2 in water. For Ba3(PO4)2, Ksp = 1.3 x 10 29 Thank you!
asked by Anonymous 
Social research
1. Using the population figure (N of Cases) which is 55,000 compute the proportion of population members that died during 2007 if there were 4000 deaths during that year. Produce the answer rounded off or preset to include 3 decimal places. 2. Using the
asked by Lost student 
desk top publisher
in publishing terms, the word tone refers to what?
asked by butch 
Physics
A projectile is launched with an initial speed . At its highest point, the projectile's speed is . What was the launch angle above the horizontal? (in deg)
asked by Madison 
Physics
A place kicker must kick a football from a point 35.0 m (= 38.3 yd) from the goal, and the ball must clear the crossbar, which is 3.05 m high. When kicked, the ball leaves the ground with a speed of 19.8 m/s at an angle of 45.0o to the horizontal. By how
asked by Madison