Questions Asked on
February 22, 2011

Economics
What is the common element in each column? Column A: The number of minimum wage jobs has increased. By 2025 blue collar work could be totally obsolete. The number of ATM’s is increasing faster than the rate of bank tellers. “We’re sorry all our
asked by Ann 
american government
What is the establishment clause?
asked by cheyenne 
Intermediate Algebra
Can someone help me with this problem m2n=16, 4m + n=1
asked by Gail 
Alegerbra
21xy,7x^(3)y
asked by Anonymous 
calc
If dy/dx = xy  y^2 and y(1) = 3, then y (2) = ?
asked by Erica 
Calc
A rectangle is to be inscribed in a semicircle of radius 8, with one side lying on the diameter of the circle. What is the maximum possible area of the rectangle?
asked by Erica 
Calc
If dy/dt = 2y/(t(t+2)) for t>0 and y = 1 when t = 1, then when t = 2, y = ?
asked by Erica 
Calc
The line y = mx+b with b≥2 is tangent to the graph f(x) = 2(x2)² + 2 at a point in the first quadrant. What are all possible values of b?
asked by Erica 
maths
Can anyone help with te following please The total volume V(x)cm^3 of a container is given by V(x)= 4(x + ãx(8x)) (
asked by Claire 
Physics II
A bead with a mass of 0.085 g and a charge of 20 nC is free to slide on a vertical rod. At the base of the rod is a fixed 20 nC charge. In equilibrium, at what height above the fixed charge does the bead rest?
asked by Alona 
physics
what potential difference is required to pass 3.0 A through 28 ohm's
asked by pablo 
calculus
If f(x) is differentiable at x=a where a is not equal to 0, Find lim [[f(x)]^2[f(a)]^2] / [x^2a^2] as x approaches a
asked by amu 
math
dale have decided to fence off the garden plot behind his house, using his house as a "fence" along one side of a garden, the lenght(which run parallel to the house)is e feet less than twice the width. Find the dimensions if 32feet of fencing is used along
asked by ASnh 
Maths
A music store offers a prize to a customer who can guess the closest, the number of jelly beans that fill a litre jar on the counter. estimate the number of jelly beans in the jar if 1 jelly bean is approximately 2cm (h) by 1.5 cm in diametre (d)
asked by Riah 
Environmental engineering
Lake Kickapoo, TX, is approximately 12 km in length by 2.5 km in width. The inflow for the month of April is 3.26 cubic meter per second, and the outflow is 2.93 cubic meter per second. The total monthly precipitation is 15.2 cm and the evaporation is 10.2
asked by Jazmin 
Chemistry
The temperature of 100.0g of water initially at 25.0 degrees C in a calorimeter increases to 30.0 degrees C after adding a 20.0g piece of hot aluminum. What was the temperature of the aluminum before adding it to water? The specific heat of water and
asked by Jaclyn 
stats
a die is rolled 10 times. find the chance of.... a)not getting 10 sixes b)all the rolls showing 5 spots or less I'm not sure how to do either, but for b, I think is it (5/6)^10 because each time there is a chance that the number will be 5 or less? Please
asked by karen 
phyics
calculate the gravitational force between a student with mass (60kg) and her desk (5kg) if she is sitting .2m from her desk
asked by clayton 
physics
why is lead used as one of the metals in a thermocouple
asked by vera 
calc
I would greatly appreciate your help with a math equation needed for a science experiment I'm researching. The case is the following: there is a pit full of juice and a stream of water is flowing through the pit (so that the amount of water which enters
asked by Joseph 
Science
Diagram examples of a player dat drop a ball on d ground and bounce back to his hand
asked by Samuel 
mth
Add the rational expressions as indicated. Be sure to express your answer in simplest form. (8 x)/(x3) + 7/(x3)
asked by latasha 
physics
what is a current loop
asked by vera 
phisic
Consider an airplane that normally has an air speed of 120 km/h in a 105 km/h crosswind blowing from west to east. Calculate its ground velocity when its nose is pointed north in the crosswind?
asked by macarena 
Math
An experiment has probability p of success, q of failure and 1  p  q of neither, If independent trials are repeated over and over until either success or failure is obtained, what is the probability of an ultimate success?
asked by Brian 
Math
If independent events have probabilities p and q, what are the odds of at least one of the events occurring?
asked by Brian 
pythagoras theorem
a ladder is leaning against a wall. it reaches 2.5cm up the wall and its foot is 1.2m from the base of the wall. how long is the ladder to one decimal point
asked by Anonymous 
Maths
a curve ahs parametric equations x=t^2 and y= 11/2t for t>0. i)find the coordinates of the point P where the curve cuts the xaxis which i found to be P(1/4, 0) the next part i cant do ii) find the gradient of the curve at this point. So far, I have the
asked by Hannah 
science
how much salt must I put into a 100mls of water to stop it freezing when left overnight in a home freezer
asked by meg 
physics
You stand on the seat of a chair and then hop off. During the time you are in flight down to the floor, the Earth is lurching up toward you with an acceleration a. If your mass is 52 kg, what is the value of a? Visualize the Earth as a perfectly solid
asked by kia 
physics
can i know what the important thing that i should know in chapter force?
asked by alya 
english
ideas plz on this question. "Imagine you are a 12 year old boy from Afghanistan who us newly arrived in Australia. Write a diary entry on your first day of school." sooner the help the better, just saying. :) thanks guys.
asked by Al1ce 
algebra
The final grade for a particular course is calculated by dividing total points earned by total points available. There are 120 points available in the first half of the course, and 140 points in the second half of the course. If a student earns 81% in the
asked by bianca 
Psychology
Explain the relationship between learning and memory.
asked by Tanya. B 
Algebra 1
Larry has $2600 to invest and needs $3000 in 11 years. What annual rate of return will he need to get in order to accomplish his goal, if interest is compounded continuously?
asked by Brad 
Algebra
Find the accumulated value of an investment of $5000 at 5% compounded monthly for 8 years.
asked by amber 
Math
Factorize (x+2)^2 + x^2 +6x + 8
asked by lala 
social studies
i need a power point presentation on the disposal of the dead in the Indus valley civilization.
asked by pranamya joshi 
Math
Simlplify 1/(2x)  3/(x+6)
asked by lala 
physics
Two satellites are in circular orbits around Jupiter. One, with orbital radius r, makes one revolution every 17 h. The other satellite has orbital radius 4.2r. How long does the second satellite take to make one revolution around Jupiter?
asked by jimmyjonas 
physics
2.A spy satellite is in circular orbit around Earth. It makes one revolution in 6.02 hours. (a) How high above Earth's surface is the satellite? (b) What is the satellite's acceleration?
asked by jimmyjonas 
physics
3.A roller coaster has a vertical loop with radius 27.1 m. With what minimum speed should the roller coaster car be moving at the top of the loop so that the passengers do not lose contact with the seats?
asked by jimmyjonas 
physics
4.A 30.8kg child swings on a rope with a length of 6.29 m that is hanging from a tree. At the bottom of the swing, the child is moving at a speed of 4.2 m/s. What is the tension in the rope?
asked by jimmyjonas 
physics
5.A car approaches the top of a hill that is shaped like a vertical circle with a radius of 55.5 m. What is the fastest speed that the car can go over the hill without losing contact with the ground?
asked by jimmyjonas 
physics
6.A child pushes a merry goround from rest to a final angular speed of 0.46 rev/s with constant angular acceleration. In doing so, the child pushes the merrygoround 1.3 revolutions. What is the angular acceleration of the merry goround?
asked by jimmyjonas 
physics
7.A turntable reaches an angular speed of 33.3 rpm, in 2.1 s, starting from rest. (a) Assuming the angular acceleration is constant, what is its magnitude? b How many revolutions does the turntable make during this time interval?
asked by jimmyjonas 
physics
7.If a washing machine's drum has a radius of 28 cm and spins at 4.1 rev/s, what is the strength of the artificial gravity to which the clothes are subjected? Express your answer as a multiple of g.
asked by jimmyjonas 
Algebra
Cody’s motorboat took 3 hr to make a trip downstream with a 6mph current. The return trip against the same current took 5 hr. Find the speed of the boat in still water
asked by Joel 
medical office
what does it mean when you find a three digit code highlited in the tabular list
asked by rachel 
Discrete Math
Hi, I need help with interpreting a figure. You can find it one photobucket. First, type in flutegirl516 in the search bar and then click on the message that says: "Are you looking for the Photobucket user flutegirl516? Click here to see this user's
asked by Francesca 
math
Geometry. How do you find the area of a triangle with the base of 1 1/8 and a height of 2/3 inches?
asked by Shiela 
physics
A 1kg rocket is fired straight up from level ground. The engine is able to provide a constant 15N of thrust for exactly 5 seconds after which it shuts of completely. Find the maximum height that the rocket achieves.
asked by eugene 
please please i need more ideas in the answer
write a single paragraph which answers this question, “Who is responsible for program planning, the academic advisor or the student? Explain why.”
asked by Anon 
English
What lesson do you think is important from the reading of "Hands"?
asked by Matty F. 
Pysics
the average speed of light slows to 0.75 when it refracts through a praticular piece of plastic. a. what change is there in the light's frequecny in the plastic? b. in its wavelength?
asked by Sarah 
Medical office
what does it mean when you find a three digit code highlited in the tabular list A, Poisoning B. Accident, C. Theraputic Use D. Undetermined
asked by rachel 
Random Book Selection Questions
What statement does the story (or stories) of Winesberg, Ohio make about life in the small towns of America?
asked by Danny 
chemistry 11
Calculate # of oxygen atoms in 3.15 moles of MgSO4
asked by lobo 
Physics
A 10.3 kg block of ice slides without friction down a long track. The start of the track is 4.2 m higher than the end of the track, and the path traveled is 8.0 m. Find the speed of the block when it reaches the end of the track.
asked by Breezerlea 
chemistry 11
What mass of carbon is contained in 3.17 x 10 exp.24 formula units of iron(III)carbonate?
asked by lobo 
Physical Science
Suppose you made your own hydrometer. The lower part of a hydrometer has a volume of 7.0 g/cm3 and the upper part is 5.0 cm long and has a crosssectional area of 0.62 cm2. What length of the upper part of the hydrometer will be submerged?
asked by Dee 
algebra
Select the set of equations that represents the following situation: Mary invested one amount at 7% simple interest, and a second amount at 5% interest, earning $29.80 in one year. If she had switched the amounts, she would have earned $35.00. What were
asked by Joel 
C++
Using C++ (if, char or Boolean) Write a program that asks the user for a two digit number and then prints the English word for that number. Sample run: Enter a twodigit number: 45 You entered the number fortyfive. PLAN: Read the number entered as an
asked by Sundayy 
Biology
Darwin believed that Malthus' ideas about human populations applied more strongly to animals and plants. Why?
asked by Ashley 
math
One day a third of the class is absent and 16 children are present. How many children are in the class when no one is away?
asked by Drake 
Chemistry
When 1.O M solution of NaCl at 25 degrees C, is heated to 55 degrees C the: A) density increase and the molarity increases B) density increases and the molarity decreases C) density decreases and the molarity decreases
asked by Courtney 
business
What are some of the operations management practices that can help bring manufacturing back to the U.S?
asked by Anonymous 
Biology
What did Darwin believe is the consequence of overpopulation in animals and plants?
asked by Ashley 
physics
Speedometer readings are obtained and graphed below as a car comes to a stop along a straightline path. How far does the car move between t = 0 and t = 14 s?
asked by maya 
Chem
22.8 kg of a metal has a density of 8.3g/mL. Calculate the volume of the metal sample?
asked by jay 
social problems
Tommy has watched his parents smoke crack cocaine and is considering joining a gang that deals crack in the neigborhood.He sees nothing wrong with using and dealing drugs unless he gets caught.Which one of the following sociological hteories best explains
asked by vedrana 
math
Okay so I feel like such a dork cuz I don't remember what this means (3) so could someone please help me?? Thanks
asked by gigi 
algebra
Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this. x + 10y = 41 x + 9y = 37
asked by Joel 
algebra
Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. 3x + 4y = 19.5 3x + y = 10.5
asked by Joel 
algebra
Select the set of equations that represents the following situation: The cost of eleven CDs and twelve DVDs is $150.62; and the cost of one DVDs and twelve CDs is $116.07. How much do a CD and a DVD cost? (Points : 3) 11x + 12y = 150.62; 12x + 1y = 116.07
asked by Joel 
algebra
Select the set of equations that represents the following situation: Mary invested one amount at 7% simple interest, and a second amount at 5% interest, earning $29.80 in one year. If she had switched the amounts, she would have earned $35.00. What were
asked by Joel 
algebra
Select the set of equations that represents the following situation: Mary invested one amount at 7% simple interest, and a second amount at 5% interest, earning $29.80 in one year. If she had switched the amounts, she would have earned $35.00. What were
asked by Joel 
algebra
To buy both a new car and a new house, Tina sought two loans totalling $319,531. The simple interest rate on the first loan was 2.7%, while the simple interest rate on the second loan was 2.6%. At the end of the first year, Tina paid a combined interest
asked by Joel 
algebra
A dehydrated patient needs a 3.82% saline IV. Unfortunately, the hospital only has bags of 4% and 3% saline solutions. How many liters of each of these solutions should be mixed together to yield 5 liters of the desired concentration?
asked by Joel 
Organic Chem
Is it possible to obtain pure (200 proof) ethanol using fractional distillation from a fermentation mixture that contains equal amounts of water and ethanol? why or why not?
asked by Tina 
English
I really need you to check my corrections. Thank you very much. 1) The town is described through the use (using, are both possible?)of similes taken from the animal world. 2) The black smoke coming out of the chimneys is compared to (not: is seen as) a
asked by Mike 
algebra
Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. x – 8y = 43 4x + 32y = 172
asked by Joel 
algebra
Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. 7x – 5y = 1.5 5x – 4y = 4.5
asked by Joel 
Vocabulary check my answer!
What does the parenthesized word mean? Hoping to avoid being punished, the child *(groveled)* at the feet of his parents in the hopes that they would forgive his misbehavior. wished laughed praised begged.... is this right?
asked by Lumi 
geography
mention 5 charactheristics of a map
asked by kofi 
Algebra
Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. 3x – 5y = 61 7x – 5y = 9
asked by Betty 
College Physics
Three weights are attached to the corners of an equilateral triangle (side length 10 cm) made from stiff but very light wire. Measured from the bottom left corner, what is the center of mass of this object if M1 = 0.1 kg, M2 = 0.2 kg, and M3 = 0.3 kg?
asked by Sararh 
operation
Briefly desribe the cookie production process
asked by francis 
competitiveness,strategy,and productivityoperatio
As a consumer,what things do you consider in judging the quality of cookies you buy in a supermarket
asked by francis 
Economics
What is the common element in each column? Column A: The number of minimum wage jobs has increased. By 2025 blue collar work could be totally obsolete. The number of ATM’s is increasing faster than the rate of bank tellers. “We’re sorry all our
asked by Ann 
physics
a .140 kg baseball is dropped from rest from a height of 2.2m above the ground. it rebounds to a height of 1.6 m. what change in the balls momentum occurs when the ball hits the ground?
asked by vicki 
trig
"Two points A and B on the circle x^2 + y^2 = 49 form a central angle of 30 degree with the radii draw to them. Find the length of the arc AB in term of pi?"
asked by ervin 
Pre AP Chemistry
If I have a 1200 gram sample of a soft drink and it contains 180 grams of sugar, the percentage by mass of the sugar in the drink is 15%. If the sugar in the drink is sucrose (C12H22O11), how many grams of pure carbon can be obtained from decomposing all
asked by Lynn 
College Algebra
Carl had packed 6 crates by 8 a.m. By 11 a.m., he had packed 24 crates. Find the average rate of change in crates packed from 8 a.m. to 11 a.m.
asked by Joyce 
physics
a .330 kg volleyball is dropped from rest. it takes it 1.30 s to reach the ground. what is the magnitude of its momentum just before it hits the ground
asked by vicki 
Physics
A stone is thrown from a 50m high cliff and lands 5 seconds later, 40m from the base of the cliff. At what speed and angle was the stone thrown?
asked by Jessica 
Spanish8th gradeTotally confused
Could someone please help meI'm totally confused on this. I have to say that the person has his/her/their own book or books in the following sentences 1.Yo tengo libro. 2.Ella tiene libros 3.Ellos tienen libro 4.Nosotros tenemos libro For 1, would I put
asked by BethAnne 
SpanishPlease check my answer
This is true or false A possessive adjective is a descriptive word that tells whose something is I think this is false because the possessive adjective describes the noun and not the person who has possession of the item.
asked by BethAnne 
corporate finance
Toyota Motor Credit Corporation (TMCC), a subsidiary of Toyota Motor, offered some securities for sale to the public on March 28, 2008. Under the terms of the deal, TMCC promised to repay the owner of one of these securities $100,000 on March 28, 2038, but
asked by Lizi 
Algebra
If a bicycle has a crankshaft of 40 teeth, and there are three rear sprockets attached to the rear wheel, 20 teeth, 16 teeth and 12 teeth. The diameter of the rear wheel is 60 cm. Which sprocket should be used to get the most distance in one paddle? What
asked by Maggie 
english
in the story "snow" through the story's firstperson narration, the reader comes to understand
asked by cody 
chemistry
Write the major products with the correct regiochemistry and stereochemistry for 1 ethylcyclohexene and the following reagents: a) NBS, H2O, DMSO if someone could atleast direct me to a site or anything that would be great.
asked by ben 
Algebra 2
If a bicycle has a crankshaft of 40 teeth, and there are three rear sprockets attached to the rear wheel, 20 teeth, 16 teeth and 12 teeth. The diameter of the rear wheel is 60 cm. Which sprocket should be used to get the most distance in one paddle? What
asked by Maggie 
math
parallel to y 2x+2 and passes through the point (2),(3)
asked by cody 
Calculus
The position of a particle moving along the xaxis is given by s(t)=2t2+4. Use difference quotients to find the velocity v(t) and acceleration a(t), filling in the following expressions as you do so: v(t)=limh>0 [_____ / h ] = ____ a(t)=limh>0 [ ____ / h
asked by Cecille 
social studies
The task of economic policy is to create a prosperous America. The unfinished task of prosperous Americans is to build a Great Society. Our accomplishments have been many; these tasks remain unfinished: > to achieve full employment without inflation; > to
asked by jamaal 
Physics
The space between two points
asked by kb 
physics
trying to win the superbowl, a placekicker attempts a field goal from 45 m away. when kicked, the ball leaves the ground with a speed of 22m/s at an angle of 50 degrees above the horizontal. what can you say about the ball when it reaches the crossbar that
asked by charlie 
physics
What is the potential energy of an object that has a mass of 5 kg and is on a shelft that is 2 m high
asked by Chell.bell 
social problems
Dr.Rivera and Dr. Harris want to conduct research to determine whether training prisoners in computer skills during incarceration will reduce recidivism.The researchers plan to compare a group of prisoners who received the training with a group that did
asked by vedrana 
arithmetic
(e²2e+7)(e²+2e+7)
asked by please help me its urgent 
physics
At a certain time, a 55kg person is 25 m due north of you and is walking at a speed of 1.2 m/s exactly southwest. What are the magnitude and direction of this person’s angular momentum about you?
asked by Jordan 
physics
Two balls having different masses reach the same height when shot into the air from the ground. If there is no air drag, which of the following statements must be true? (More than one statement may be true.) A. Both balls left the ground with the same
asked by andrea 
physics
A 1.00 g grasshopper and a 0.100 g cricket leap vertically into the air with the same initial speed in the absence of air drag. Which of the following statements must be true? (More than one statement may be true.) A. The grasshopper goes 10 times as high
asked by andrea 
Physics
A spy satellite is in circular orbit around Earth. It makes one revolution in 6.00 hours. (a) How high above Earth's surface is the satellite? [Answer in Km] (b) What is the satellite's acceleration? [Answer in m/s^2] Please provide a step by step
asked by MB 
english
what could i right for the title you can't help everyone in trouble people really have to sort out their own problems thankyou as soon as possible
asked by chloe mcp 
physics
A billiard ball rolling across a table to the right at 2.2 m/s makes a headon elastic collision with an identical ball. The mass of a billiard ball is 32 g. If the second ball is initially at rest, what is the velocity of the first ball after the
asked by micha 
physics
A 15.0 kg stone and a 150 kg stone are released from rest at the same height above the ground. There is no appreciable air drag. Which of the following statements is or are true? (More than one statement may be true.) A. Both stones have the same initial
asked by andrea 
Physics
Displacement vector [3, 0 , 2] and [1,5,2]displacement vector , both measured in meters. Find the components of the cross product of these vectors.
asked by Jordan 
physics
Which of the following statements about work is or are true? (More than one statement may be true.) A. Negative net work done on an object always reduces the object's kinetic energy. B. If the work done on an object by a force is zero, then either the
asked by andrea 
physics
A railroad car of mass 26500 kg is released from rest in a railway switchyard and rolls to the bottom of a slope Hi =8 m below its original height. At the low point, it collides with and sticks to another car of mass 20000 kg. The two cars roll together up
asked by micha 
SpanishPlease check my workThanks
Could someone checkI had to correctly conjugate the verbs. Mis hermanos prefieren un pastel de chocolate. Mi padre prefiere una corbata azul. Mis amigos quieren una fiesta. Yo quiero muchos regalos. Nosotros queremos una fiesta. Ellos quieren bailar.
asked by Ray Scholz 
physics
Consider two frictionless inclined planes with the same vertical height. Plane 1 makes an angle of 25.0 degree with the horizontal, and plane 2 makes an angle of 55.0 degree with the horizontal. Mass m_1 is placed at the top of plane 1, and mass m_2 is
asked by andrea 
Physics
A 6kg bowling ball with a radius of 14 cm is spinning about a vertical axis (with its center of mass motionless) at an initial rate of 3 turns per second. Friction with the floor, however, causes the bowling ball to rotate more and more slowly until it
asked by Jordan 
English
Can you please tell me if the corrections in my previous post were all OK? I have a few more doubts. 1) In order to describe Coketown Dickens uses two similes. 2) Through these similes he conveys the image of a towm like (which looks like) a jungle. 3)
asked by Mike 
physics
A block slides a distance d down a frictionless plane and then comes to a stop after sliding a distance s across a rough horizontal plane. What fraction of the distance s does the block slide before its speed is reduced to onethird of the maximum speed it
asked by andrea 
physics
One of the tenets of the pseudoscience (i.e., "false science") of astrology is that, in some mysterious way, the positions of the planets at the time of a person's birth somehow influence the characteristics of that person. To see if this proposition seems
asked by andrea 
Physics/ electricity
Consider a square of side length a = 9.7 cm with charged particles at each of the corners. Three of the particles carry +9.3 nC of charge while the fourth particle carries 9.3 nC. In volts, what is the electric potential at the center of the square? Hint:
asked by Me 
APphysicsB
If wind blows at 26 m/s over a house, what is the net force on the roof if its area is 241 m2 and is flat?
asked by moody 
Physics
Two objects attract each other gravitionally with a force of 2.5 *10^10 N when they are .25m apart. Their total mass is 4.0kg. Find their individual masses.
asked by Emily Grossman 
Physics
If a curve with a radius of 88m is perfectly banked for a car traveling 75km/h, what must be the coefficient of static friction for a car not skid when traveling at 95 km/h?
asked by Emily Grossman 
Under Franklin Roosevelt's Good Neighbor policy,
Under Franklin Roosevelt's Good Neighbor policy, A. the collective security among the nations of the Western Hemisphere declined. B. American commerce with Latin America increased, but only slightly. C. the Platt Amendment was rescinded. D. Cordell Hull
asked by Anonymous 
physics
A mass is attached to a string and then dropped. What is its velocity after 5 sec?
asked by quana 
English
Is there euphony, cacophony, onomatopoeia in the poem Phenomenal Woman by Maya Angelou? Examples are needed.
asked by Andrea 
Math
You would like to invest in $12,000 in two different bonds. Some of the amount will be invested in treasury bonds at 10% annual interest and the rest in municipal bonds at 15%. What amount should be invested in each type of bond rate if the annual yield
asked by Jaison 
government
Students are to read up on the role of Hezbollah as a political force in Lebanon. Due to Lebanon's geographical position, economy, and politics, would an Egyptian style revolution beneficial or detrimental to the US government? Acting as the president's
asked by Jake 
math
f(x)=3x
asked by katy 
Physics
Could a rubber band be used to replace the spring in a Hooke's Law experiment? Why/ why not?
asked by Anonymous 
Math
If a bicycle has a crankshaft of 40 teeth, and there are three rear sprockets attached to the rear wheel, 20 teeth, 16 teeth and 12 teeth. The diameter of the rear wheel is 60 cm. Which sprocket should be used to get the most distance in one paddle? What
asked by Anonymous 
physics
A rock is thrown upward at an angle of 50 degrees with respect to the horizon. As it rises, its vertical component of velocity does what?
asked by Tamara 
Algebra
If i take 5000 calls at 78% service level, how many calls would I need to take at 100% to equal an overall service level of 80% Please post formula
asked by JD 
physics
determine the speed of a mass (1.00kg) after it has fallen a vertical distance of 12.5 meters
asked by alex 
Math
How do you solve 5x  2 plus 3 over x  8?
asked by Anonymous 
Chemistry
Decide whether each of the following is watersoluble. If soluble tell what ions are produced. A. Na2CO3 B. CuSO4 C.NiS D.BaBr2 I put soluble for A, B, and D. But i can not figure out the ions that are produced??
asked by Danielle 
english
change to reported speech speaker a: eih she is coming! speaker s:who? speaker a: that woman speaker a:I really don't think she likes me. she gave me very low marks in the examination. I know I had the Best scores judging from the others.
asked by sharon 
chemistry
Describe how to make 20 mL of a 6.0 % solution from a stock solution with a concentration of 10 %.
asked by amber 
Math
A company has factories located in New Jersey, Ohio, and Georgia where it manufactures handbags, shoes, and belts. How many days should the company operate each factory in order to exactly fill the order of 2150 handbags, 2300 shoes and 2500 belts? Use the
asked by Dean 
physics
a 2 kg rabbit starts from rest and is moving at 6 m/s after 3 seconds. What force must the rabbit cause to makes this change in speed?
asked by becky 
Math
Solve the system of equation. x+y+z=6 3x2y=4z=9 xyz=0 ________
asked by Pete 
Science
How can you use technology in your elementary science instruction to help children in their inquiries?
asked by Anonymous 
physics
A hammer falls from a scaffold on a building 50.0m above the ground. Find its speed as it hits the ground.
asked by stacey 
math
3y^2=y+10
asked by RNRH 
Algebra 2
Total revenue is the total amount of money taken in by a busniss. An appliance firm determines that when it sells x washings machines, the total revenue R in dollars is given by the polynomial R= 238.39x0.5x^2. What is the total revenue from the salse of
asked by Esther 
Equations and Inequalities
25z^2=10z
asked by RNRH 
Economics
What is the common element in each column? Column A: The number of minimum wage jobs has increased. By 2025 blue collar work could be totally obsolete. The number of ATM’s is increasing faster than the rate of bank tellers. “We’re sorry all our
asked by Ann 
physics
a bullet shot at 500 m/s into a block of wood of mass 0.49kg and becomes inbedded in it. if it gives the block a speed of 11 m/s, find the mass of the bullet.
asked by josh anderson 
Science
the water and waste materials we washed down toilets and sinks are called: A. pesticides B. sewage C. industrial chemicals D. fertilizer
asked by Tina 
chemistry
Calculate the percent mass of a solution made by dissolving 25.2 of KBr into .250 liters of water.
asked by yoda 
geometry
what does 44 feet by 9 feet by 8 feet mean
asked by bob 
COLLEGE ALGEBRA
Suppose that R is the set of real numbers. Let f: R> R be defined by f(x)= mx+b, where m and b are real numbers and m is nonzero. Prove that f is a bijection.
asked by Molly 
math
Tierra, Nico, and Alex had $865 altogether. Tierra spent 2/5 of her money. Nico spent $40,and Alex spent twice as much as Tierra. If the three had the same amount of money left, how much money did alex have in the begging?
asked by kaykay 
math
the gas tank in bob's car holds at most 15 gallons. He has already filled the tank with 7 gallons of gas. he will continue to fill the tank with g gallons more. Write and solve an inequality that shows all the values of g that bob can add to the cars tank.
asked by Jay 
math
the rope James bought with his camping gear is 54 inches long. james needs to cut shorter pieces of rope that are 18 inches long. what are the possible number of pieces james can cut?
asked by Jay 
math
Find the cost of 60 tonnes of cocoa at 25 per 100kg sack
asked by Praise 
SpanishPlease check and clarify
Could someone recheck thisI don't understand the two follow up answers because they seem to contradict each otherMaybe its the question or wording I'm confused about but I still don't understand if this is true or false. I thought it was false.I'm sorry
asked by BethAnne 
math
dante has at most $12 to spend on entertainment each week. so far this week, he spent $7.50. Write and solve an inequality to determine how much money dante can spend on entertainment the rest of the week.
asked by Jay 
math
dante has at most $12 to spend on entertainment each week. so far this week, he spent $7.50. Write and solve an inequality to determine how much money dante can spend on entertainment the rest of the week.
asked by Jay 
Chem
I'm confused with Determining the concentration of a soution: beer's law lab. 1.Explain why pure water is set for a transmittance of 100%.  I believe the pure water is set for a transmittance of 100% in order to for a tranmission relative to water 2.
asked by Unknown 
math
tom saved $550 to go on a school trip. the cost for a hotel room, including tax, is $80 per night. write and inequality to show the number of nights tom can stay at the hotel.
asked by Jay 
Abstract Algebra
Let A= {1}, that is, the set of all real numbers except 1. Define an operation on A by a*b=a+b+ab (usual addition and multiplication in R) a) Show that * is closed on A b) show that * is associative c) Find the identity element for * and verify that it
asked by Molly 
Calc
find the slope of the tangent to the curve: y^2=x^3/xy
asked by Sophie 
math
The product of a number and 7 in not less than 21.
asked by Jay 
math
The quotient of h and 6 is at least 5.
asked by Jay 
Algebra
3x + 2y = 8 x + 4y = 4 use substitution method to solve the linear system.
asked by Bun 
math
A cylindrical tank is lying horizontally on the ground, its diameter is 16 feet, its length is 25 feet, the depth of the water in the tank is 5 feet. How many gallons of water are in the tank? How many more gallons of water will it take to fill in the
asked by Anonymous 
Physics
A ball on the end of a string is revolved at a uniform rate in a vertical circle of radius 72.0m, as shown in figure. If it's sped is 4.00 m/s and its mass is .300kg. Calculate the tension in the string when the ball is a). at the top of its path and b).
asked by Emily Grossman 
English
1. We were the (fastest, most fastest) swimmers on the team. 1.fastest
asked by Hayden 
eng 10 h
How would you define Emerson's idea of "mean egotism"?
asked by ridha 
english
LANG415.Mine exploded.Determine whether the sentence is ambigious or vague and explain the ambiguity or vagueness as appropriate.
asked by Nura 
chem
how do i figure this out?? How much heat does your body lose when 2.46 g of sweat evaporates from your skin at 25°C?
asked by Rebekah 
social problems
Rashida is an accountant, a wife,and mother of two young children.Which one of the following statements is likely to be true regarding her labor force participation? A)She is likely to be working for extra pocket money B)She is unlikely to remain in the
asked by vedrana 
Chemistry  help needed
In titrations involving sodium thiosulphate and potassium iodide, is it necessary to use starch solution to help us see the end point? If the colour change from yellow to colourless is easily visible, is it acceptable not to use the starch solution?
asked by janice 
Chemistry II
At a certain temperature, Kc = 33 for the reaction: H2(g) + I2(g) 2HI(g) Assume that the initial concentrations of both H2 and I2 are 6.00 x 103 mol/L. Find the concentration of each reactant and product at equilibrium.
asked by Tiffany 
Calculus
What does the arc length formula give for the length of the line r(t)= for 0 ≤ t ≤ 1?
asked by Z32 
English 12
The story Early Inklings but John updik How does the last line reinforce the meaning of the pun? Last line contains This was my element, ink on paper.
asked by Shayla 
social studies
Do you think many people live on the Kamchatka Peninsula? Why or Why not
asked by tony 
social studies
what happened as a result of the removal of the priest
asked by abraham 
statistics: dependent event
A psychology class is comprised of 4 female and 6 male students. If the instructor of the class randomly chooses 6 students from the class for an oral exam, what is the probability that 2 female students and 4 male students will be selected? Round your
asked by John 
algebra
Find the slope of the line determined by each relation. (time in hours, distance traveled at 50mi/h)
asked by Kayli 
Chem
Find the degree ionization of .75 M HF
asked by Skibba 
Math
What does I=prt mean in 7th grade verison?
asked by Rebecca Broda 
math
explain how populationand money earning interest can both be represnted by the fomula A= 1000(1.08)^t
asked by Darcy 
Multicultural Psychology
why do people tend to ignore the importance of Multicultural Psychology ?
asked by Linda 
social studies
Do you think many people live on the Kamchatka Peninsula ? Why or why not? My answer is no because there are 160 volcanoes and 29 are active.
asked by tony 
4th grade math
Two rectangles are each 5 in. wide. The larger rectangle has an area of 35 sq in . and is 2 in longer than the smaller rectangle. What is the area of the smaller rectangle?
asked by Amy 
Math
So my teacher is making me solve systems by graphing. One of them was 3x + y = 6 and 2x + 3y = 13 . I converted both of them into slope intercept form and got y = 3x + 6 and y = 2/3x + 13/3 . The thing is I don't know how to graph a fraction ?!?!?! And
asked by Melanie 
math
Robert feeds his dog 1lb.4oz ofdog food a day. How long will a 40 pound bag last? Please show steps
asked by beverly 
english ap
In the book The Crucible, I have a question when Parris tells the Judge that you cannot hang this sort, what did he mean
asked by kelli 
science
can i get the full answer to : determine your distance traveled and displacement if you walk 100 m forward and then 35 m back ? answer son as possible please and thank you !!
asked by destiny 
STATS
Samples of both surface soil and subsoil were taken from eight randomly selected farms in a county. The soil samples were analyzed to determine both surface pH and subsoil pH, which yielded the following results: Farm 1 2 3 4 Surface pH: 6.55 5.98 5.59
asked by Rina 
Algebra II
We are learning how to solve systems using elimination. 2y  1 = 3x  y / 5 3x  4 / 8 = y/4 How would I begin to solve this? I'm mostly unsure of how to simplify the fractions. Thanks so much :)
asked by Lindsey 
math
solve problem 8 __ 72 __ 2 __
asked by renee 
math
Explain how you can break apart 3times 9 to help you multiply.
asked by Joe 
math
a survvey of vegetable gardeners showed the following: 69 grew tomatoes 25 grew cucumbers 30 grew zucchini 18 grew both tomatoes and cucumbers 21 grew both tomatoes and zucchini 14 grew both cucumber and zucchini 12 grew all 3 12 had none of these 1. how
asked by Shan 
math
Explain how you can break apart 3x9 to help you multiply.
asked by Joe 
English
What does an I.O. do in a sentence? I.O. means indirect object.
asked by Izabella 
math
in a survey of 260 dancers: 172 knew the ballroom dances 145 knew latin dances 102 knew swing dances of these, 65 knew the ballroom and swing dances. 93 knew ballroom and latin dances 56 knew latin and swing dances 31 dancers indicated they knew all 3
asked by Shan 
chem
) Which of the following should dissolve the smallest amount of silver sulfide per liter, assuming no complex formation? A) 0.1 M HNO3 B) 0.1 M Na2S C) 0.1 M AgNO3 D) 0.10 M NaNO3 E) pure water
asked by sana 
Science
Steve finds the mass and volume of three different objects. With only this information and a little math, what can he also know about the objects?
asked by Nicole 
math
When you subtract 2 from a number, double the difference, and then add 7, you get 57. What is the number?
asked by miah 
Chemistry
How many ml of 1M HCl would you need to make 50.0 mL of 0.125M solution?
asked by Danielle 
Chemistry
we have 159ml of CO2 at 38.9 C and 92.4 kPa. if the conditions change to 64.9 C and 174 kPa, what is the volume of the gas?
asked by Nicole 
Chemistry
we have 159ml of CO2 at 38.9 C and 92.4 kPa. if the conditions change to 64.9 C and 174 kPa, what is the volume of the gas?
asked by Nicole 
algebra 2
I have a question about two problems that I am trying to solve for my h.s. trig. class. The first one I believe is correct. the other i am lost. D(p)= 200060p S(p)=460+94p p is the price in dollars a) find those values of p for which demand exceeds supply
asked by Monica 
chemistry
How many grams of sodium hydroxide are required to prepare 500 mL of 0.500 M NaOH?
asked by Maddy 
PhysicsPlease help
Could someone provide me with a simple explanation of how the Doppler Effect is used to determine the speed and direction of moving object
asked by Julia 
writing
What is the easiest format for a research paper
asked by celine 
chemistry
Calculate the volkume of 0.750 M KNO3 that contains 17.0 grams of KNO3?
asked by Maddy 
chemistry
What is the concentration of HCl in a 250.0 mL sample of hydrochloric acid if 15.5 mL of 0.0100 M NaOH is needed to react with all the HCl?
asked by Maddy 
Chemistry
How many ml of 1M HCl would you need to make 50.0 mL of 0.125M solution?
asked by Danielle 
Chemistry
Describe, in detail, how to make 5.5 liters of a 2.5 molar HCl solution from a 10.5 molar HCl stock solution.
asked by Kristen 
chemistry
What volume of 0.406 M KOH is required to completely react with 18.50 mL of 0.287 M H2SO4?
asked by Maddy 
Spanish
I am working on a short essay and lack confidence in my use of tenses in some sentences. Hopefully someone can check that these are okay or help/suggest how to fix them: 1. Sus colegios estarán aquí despues de ella se haya ido. (Her colleagues will be
asked by Jacqueline 
Stoichiometry
1. Iron reacts with oxygen according to the following equation: Fe + O2→ Fe2O3 a. Balance the equation. b. Assuming you start with 15.0 g of iron, how many dm3 of oxygen are required to react? c. How many molecules of oxygen is this?
asked by Ashley 
Calculus Please Help
A continuous function f, defined for all x, has the following properties: 1. f is increasing 2. f is concave down 3. f(13)=3 4. f'(13)=1/4 Sketch a possible graph for f, and use it to answer the following questions about f. A. For each of the following
asked by Cecille 
Science
How can you use technology in your elementary science instruction to help children in their inquiries? Name three children's literature stories. How can they help to support science concepts?
asked by Anonymous 
grade 5 mathematics
if 15 muskrat pelts has the same value as one beaver pelt how many muskrat pelts have the same value as 25 beaver pelts. please help.
asked by greyowl jr.p school 
math
what is the reduced fraction of 3 28/36
asked by meli 
science
a car is stopped at a traffic light, which then turns green. The car speeds up for 85 seconds and travels a distance of 1.5 miles. what is the car's acceleration from the traffic light?
asked by Anonymous 
organic chemistry
what volume of nitrogen gas is produced at 1.00 atm and 27C when 101 g of NaN3 decomposes
asked by Cathleen 
Math
solve each system 1) 3x + y = 6 2x + 3y = 13 2) 2x + 5y  6 = 0 2x + y  2 = 0 3) x + 3y = 6 4x  5y = 7
asked by Melanie 
science
how do elements in the same family usually react
asked by angiie 
Psychology
"I just can't make myself study ahead for a test. I work better under pressure. Perhaps it is the fear associated with waiting until the last minute that gets me going." This approach to motivation is best explained by: (Points: 5) incentive approaches.
asked by Lisa 
Calc
I have to find the integral of 1/(sq. rt. of (4xx²)) dx. I know I have to complete the square of the denominator, but im confused on how that process works when im only given 4xx². Could you demonstrate how to complete the square for that equation?
asked by Erica 
Math
I am having ahard time solving this problem and am not good with story problems, could someone please help. Can you show how you would write out problem. The average price of an acre of U.S farmland was $1132 in 2001. In 2006, the price of an arce rose to
asked by Cindy 
4th grade math
Students are standing in a circle evenly spaced and numbered in order. The 3rd student is directtly opposite the 7th. How many students are in the circle?
asked by Rusty 
English
Can you please check these sentences I'm doubtful about? Thank you. 1)Can you dress the Christmas tree with festoons? 2) hall we go to the cinema? I'd rather stay at home./I'd prefer to stay at home. 3)I'd like (a?) grilled chicken breast, (a) homebaked
asked by Franco 
Language Arts
What change should be made to the following sentence?: That song is The Star Spangled Banner, and Francis Scott Key wrote it.
asked by HelpMePlease 
Algebra
what is the greatest common monomial factor of 6x^2y^3z^44x^3y^3z^3+10xy^3z^4
asked by Zachary 
Solving a system of linear Equations using Substit
Suppose a school club publishes a newslettter. Expenses are 90 cents for mailing and printing each copy, plus 600 total for research and writing. The price of the neewsletter is a 1.50 per copy. How many copies of the newletter must the club sell in order
asked by Tonnie 
world history
what was the name of the french fort attacked by the spanish
asked by jazmine 
math
did perimeter and area of rectangles change in the same way it does for squares explain your thinking
asked by chance 
Chemistry
how many milliliters of 0.0850 m naoh are required to titrate 50.0 ml of a solution that contains 1.85 g of hcl per liter to the equivalence point?
asked by Charles Maxey 
Calculus Please Help
A continuous function f, defined for all x, has the following properties: 1. f is increasing 2. f is concave down 3. f(13)=3 4. f'(13)=1/4 Sketch a possible graph for f, and use it to answer the following questions about f. A. For each of the following
asked by Cecille 
AP human Geo
what is an example of agglomeration?
asked by Anonymous 
AP human Geo
What is an example of barriadas?
asked by Anonymous 
math
consider pairs of rectangles where the dimensions are doubled (rectangles with all sides X2 and all sides X4, or those with all sides X3 and all sides X6. what happens to the perimeter when you double each of the dimensions of a rectangle?, Then what
asked by chance 
AP human Geo
What is an example of the Bidrent theory?
asked by Anonymous 
chemistry
If you weighed 5.0 grams of PLA, how many moles of LA monomer residues do you have?
asked by meg 
math
Mrs. Rossi wrote the following clues for a mystery number. It is a 4digit number. The tens are double the ones. The thousands are double the tens. The sum of the digits is 19.
asked by rita 
social problems
The Moral Majority and the Christian Coalition are example of :a)interest groups b)lobbysts c)the power elite d)patronage Is A correct answer?THANK YOU:))))
asked by vedrana 
Algebra 2
for the polynomial complete the following table, 7x^4+8x^38x^2+3x4. Degree of the term, Coefficient, Degree of the term, Degree of the Polynomial. Thank you.
asked by Esther 
chemistry
What is the molar mass of one LA monomer?
asked by meg 
chemistry
If you wanted to hydrolyze 1 mole of PLA into 1 mole of sodium lactic acid, how many moles of sodium hydroxide would you need?
asked by meg 
Principles of Management
Answer questions 1 through 3 based on the following fact: WalMart sometimes forced its employees to work over time without pay. 1. Which stakeholder of WalMart is the fact mainly about? a. Customers. B. Employees. c. Suppliers. D. Governments. 2. What
asked by Alma 
Physics
The work required to stretch a certain spring from an elongation of 4.73 cm to an elongation of 5.73 cm is 31.7 J. (a) Is the work required to increase the elongation of the spring from 5.73 cm to 6.73 cm greater than, less than, or equal to 31.7 J? (b)
asked by Lauren 
math
what is another mesuarment for 1 quart?
asked by we 
Physics
A moving object has a kinetic energy of 138 J and a momentum of 23.9 kg·m/s. a) Find the speed of the object. Answer in units of m/s.
asked by Maria 
chemisty
I'm totally confused about this question....I don't know what kind of an answer the teacher is looking for. The worksheet has the header "Preparation of solutions for Beer's Law Lab." That said....here's the question: Describe the preparation of 250.0mL of
asked by desiree 
geometry
Angle GHJ and Angle IHJ
asked by matthew 
physics
A 2.32 kg book is dropped from a height of +3.7 m. a.) What is its acceleration? b.) What is its weight in newtons?
asked by Becky 
math
a box contains 4 white,6 red, and 8blue marbles.what is the probability,expressed as a common fration,that one marble,drawn at random,will be red?
asked by Anonymous 
algebra 2
The yearly Egyptian production of oil O(t) in millions of barrels, t years after 2000 can be approximated by, O(t)=40.4t +2159 Using inequality, determine the years for which the production will drop below 1750 million barrels. This is what I have and
asked by Monica 
chemistry
Suppose you wanted to dissolve 40.0 g of NaOH in enough H20 to make 6.00 L of solution and what is the molarity of the solution?
asked by Servando 
CRIMINOLOGY
What are some examples of nonmonetary restitution?
asked by Carly 
math
a container has volume 1m cubed the lenght of the container is 200cm. list all the possible dimensions of the container. each dimension is whole number of cm.
asked by erick 
Chem
In acidic solution MnO4 oxidizes H3AsO3, a weak acid, to H3AsO4, a weak acid, and is reduced to Mn2+. Write the balanced net ionic equation for this reaction. How many H+ are there in the balanced equation? Question 8 answers
asked by EJ 
physics
Four forces act on a hotair balloon, F_1 is upward at 4600 N, F_2 is left at 1450 N, F_3 is right at 850 N, and F_4 is downward at 3600 N. ____ N at _____ degrees clockwise from F_2.
asked by Becky 
physics
A sound wave traveling at 342 m/s is emitted by the foghorn of a tugboat. An echo is heard 2.50 s later. How far away is the reflecting object? Answer in units of m.
asked by Maria 
Math
prime and composite arrays are hard .Help please .
asked by Casey 
science
what is the solubility of alum in 100 ml of water at 20 degrees celcius?
asked by Anonymous 
math
why does a direct variation graph have to go through the origin?
asked by Anonymous 
test prep math
i= p=1250 r=9.8% t=6 years
asked by ladybug 
PREALGEBRA
2V/5+V/4
asked by KATIE 
Math
Regina worked in the garden, she spent 1/4 hour planting beans, 3 3/4 minutes staking tomato plants, and 1/2 hour training the cucumber vines. How much time did she spend gardening? Explain your answer.
asked by Emily 
algebra
Find the volume of a cube whose side measures four x to the seventh power.
asked by Meagan 
math
use the quotient rule to find derivative. y= 3x^2+8 / x^2+3 (x^2+3)(6x)  (3x^2+8)(2x) all over (x^2+3)^2 The answer is 2x/(x^2+3)^2 The only problem is I am not sure how they simplified this to get the answer.
asked by Hannah 
Physics
I can't figure this question out. If there are three weights attached to the corners of an equilateral triangle with side length 10 cm Measured from the bottom left corner, what is the center of mass of this object if M1 = 0.1 kg, M2 = 0.2 kg, and M3 = 0.3
asked by Paul 
Math
Space C has a base of 20 feet and a height of 24 feet and the two sides are both 26 feet (it is a parrallogram).... Space c will be tiled and used for an eating area. Each tile measures 1 square foot and cost $2. How much will it cost to tile the floor?
asked by Leah 
Calc
find the slope of the tangent to the curve: y^2=x^3/xy
asked by Lisa 
Language
How many words can I list that are related to the base word friend?
asked by Famous 5 
physics
In the movie Superman, Lois Lane falls from a building and is caught by the diving superhero. Assuming that Lois, with a mass of 45 kg, is falling at a terminal velocity of 59 m/s, how much force does Superman exert on her if it takes 0.4 s to slow her to
asked by Anonymous 
physics
In the movie Superman, Lois Lane falls from a building and is caught by the diving superhero. Assuming that Lois, with a mass of 45 kg, is falling at a terminal velocity of 59 m/s, how much force does Superman exert on her if it takes 0.4 s to slow her to
asked by Anonymous 
Algebra 2
How do I solve polynomial equation by finding all complex roots? The problem is: factor each expression and find all complex roots of x^3+64 I got as far as x^3+64=(x+4)(x^24x+16) Now how do i find the roots of (x+4) and the roots of (x^24x+16) Thanks
asked by Jessica 
Personal finance
What amount would you have if you deposited $2,500.00 a year for 30 years at 8 percent (compounded annually)?
asked by Amanda 
Spanish
1. Vamos ____ para comprar comestibles. a. a la tienda de regalos b. al almacén c. a la cocina d. al supermercado D? 2. Para _____ una tarjeta postal, necesito poner _______. a. sacar / un sello b. poner / mi nombre c. enviar / un sello d. llevar / algo
asked by mysterychicken 
Physics Class
I don't understand this question. Three weights are attached to the corners of an equilateral triangle with a side length 10 cm. Measured from the bottom left corner, what is the center of mass of this object if M1 = 0.1 kg, M2 = 0.2 kg, and M3 = 0.3 kg?
asked by Ann 
Math
What is 161.7728 rounded to the nearest tenth?
asked by TayTay 
chemistry
Calculate the concentration of oxalate ion (C2O42−) in a 0.175 M solution of oxalic acid (C2H2O4). [For oxalic acid, Ka1 = 6.5 × 10−2, Ka2 = 6.1 × 105.]
asked by sarah 
Science / ELA
Can you see if this essay below needs some corrections that may need to be fixed: Rocks go through the rock cycle; each type of rock can be changed into any other type of Rocks. Rocks are continuously formed; soon later the rocks start to erode and then
asked by Anono. 
Chemistry
Some solid copper(II) sulfate is dissolved in sufficient water to make 100.0 mL of solution. Enough of a sodium hydroxide solution of concentration 0.1500 mol/L is added just to react with all of the first solution, with none left over. This turns out to
asked by OLGA 
Physics
A block rides on a piston that is moving vertically with simple harmonic motion. (a) If the SHM has period 3.1 s, at what amplitude of motion will the block and piston separate? (b) If the piston has an amplitude of 9.6 cm, what is the maximum frequency
asked by Jake 
6th grade science
What are Newton's three laws on motion in sixth grade lingo?
asked by Marsha 
Math
multiplying by 1 to find an expression equivilent to 12over19 with a denominator of 133d
asked by Donna 
physics
A system of pulleys is used to lift an elevator carrying a 3,300 newton load. assuming the pulley system is friction free, approximately how far would 10,000 joules of energy lift the elevator?
asked by tania 
Chemisrty
What is the pH of a 0.20 M solution of NH4Cl? [Kb(NH3) = 1.8 × 10−5]
asked by Peter 
History
would an Egyptian style revolution beneficial or detrimental to the US government?
asked by Matthew 
math
Find the expected value of a $1 bet in sixspot keno if three winning spots pays $1 (but you pay $1 to play, so you actually break even), four winning spots pays $3 (but you pay $1 to play, so you profit $2), five pays $100, and six pays $2,600.
asked by bob 
CHEM 11
I am really stuck with this... what mass of oxygen is contained in 10.5 umol of chromium(III)nitrate hexahydrate? Can't understand how to convert the micromoles especially!
asked by lo 
english
Long ago,farmers milked cows by hand. Is milked the action verb and by the linking verb also is use a linking verb
asked by jill 
Physics
A projectile (mass = 0.10 kg) is fired at and embeds itself in a target (mass = 2.11 kg). The target (with the projectile in it) flies off after being struck. What percentage of the projectile's incident kinetic energy does the target (with the projectile
asked by Lauren 
Physics
A car (mass = 1180 kg) is traveling at 36 m/s when it collides headon with a sport utility vehicle (mass = 2380 kg) traveling in the opposite direction. In the collision, the two vehicles come to a halt. At what speed was the sport utility vehicle
asked by Lauren 
Physics
Car 1 has a mass of m1 = 65 multiplied by 103 kg and moves at a velocity of v01 = +0.95 m/s. Car 2, with a mass of m2 = 92 multiplied by 103 kg and a velocity of v02 = +1.1 m/s, overtakes car 1 and couples to it. Neglect the effects of friction in your
asked by Lauren 
Math
Let A = {a, b, c}, & B= {1, 2} a) Determine A x B b) Determine B x A c) Does A x B = B x A? d) Does A x B = B x A ?
asked by Vanessa 
Chemistry
How many kilojoules of heat energy are needed to change 49.6 g of ice at 15 degrees celsius to water at 58 degrees celsius? I am having trouble figuring out how to solve this.
asked by Julia 
cost accounting
Underapplied or overapplied overhead, prepare the necessary journal entry to close the overhead account if the balance is considered immaterial
asked by Anonymous 
medical
youre the chairperson of the forms committee discuss the basic specifications for designing a form
asked by pennfoster 
Physics please help!!
A 60cm diameter bike wheel starts at rest and develops an angular speed of 12.0 rad/s in 10 seconds. What linear distance does the bike travel?
asked by Megan 
Math Ultimate challenge puzzle
andrew, bernard, and clyde are bicicling. each one is riding the bicicle of on friend and wearing the hat of another. the one who wears claude's hat is riding bernard's bicicle. who is riding andrew's bicicle?
asked by Rachel 
chemistry
If 0.1200g of sodium carbonate is dissolved in 50 mL of water and titrated with 0.1000 M HCl, how many mL of HCl will be required to reach the second endpoint? CO3^2 + H^+1 > HCO3^1 HCO3^1,+ H^+1 > H2CO3
asked by Anna 
geometry
a cable attach to the top of a tv antenna is 100 ft. if the cable is fasten to the ground 28 ft from the base of the antenna how tall is the antenna?
asked by angel 
Chemistry
How many kJ will be released as 575 g of steam at 176 degrees celsius are changed into ice at 75 degrees celsius?
asked by Julia 
physics
If a runner travels at a speed of 10 m/s for 5 seconds, stops for a short time then continues on at a speed of 8 m/s for 4 seconds. How long was the runner stopped for if his average speed at the end of the trip is 4 m/s.
asked by mikey 
math
The distance between (0, 0) and (0, 1) on a certain coordinate plane is 1cm. The distance between (0, 0) and (1, 0) on that same coordinate plane is 1cm. What is the distance between (0, 0) and (1, 1)? Explain your answer.
asked by anonymus 
general chemistry 1
The density of diamond is 3.51 g/cm3 and the density of lead is 11.3 g/cm3. If equal masses of diamond and lead are transferred to equal volumes of water in separate graduated cylinders, which graduated cylinder would have the greatest volume change?
asked by Netta 
physics
A sled initially at rest has a mass of 47.2 kg, including all of its contents. A block with a mass of 14.5 kg is ejected to the left at a speed of 13.5 m/s. What is the speed of the sled and the remaining contents?
asked by Anonymous 
physics
A sled initially at rest has a mass of 47.2 kg, including all of its contents. A block with a mass of 14.5 kg is ejected to the left at a speed of 13.5 m/s. What is the speed of the sled and the remaining contents?
asked by Anonymous 
Math
If A is a subset of B (not necessarily proper) and B is a subset of C (not necessarily proper) the A is a proper subset of C. True or False if false must provide a counterexample
asked by Vanessa 
Algebra 2
The yearly Egyptian production of oil O(t) in millions of barrels, t years after 2000 can be approximated by, O(t)=40.5t +2159 Using inequality, determine the years for which the production will drop below 1750 million barrels. This is what I have and
asked by Monica 
math
absolute value of(x + 3) + absolute value of (3  x) < 9. I am not sure how to go about this question. Although, we generally use three cases.
asked by Jenni 
physics
Stuck in the middle of a frozen pond with only your physics book, you decide to put physics in action and throw the 6kg book. If your mass is 54 kg and you throw the book at 14 m/s, how fast do you then slide across the ice? (Assume the absence of
asked by Anonymous 
Ethics
What moral is the fondness of war related to? I'm trying to sum it up in a concise phrase or word but I can't think of the right one. Ambitiousness? Belligerent? Thanks
asked by jane 
math
if you divide 35 and 10 what would be the answer? would it be even or odd
asked by abigail 
Math
Can someone help me solve this question? I've read the book, notes, I still don't get it... Simply each of the following. a) n!/(n1)! b) (nr)!/(nr1)!
asked by Joey 
Physics
The lead female character in the movie Diamonds Are Forever is standing at the edge of an offshore oil rig. As she fires a gun, she is driven back over the edge and into the sea. Suppose the mass of a bullet is 0.005 kg, and its velocity is +730 m/s. Her
asked by Lauren 
physics
design an experiment that will allow you to determine the length of the soccer field from one set of goal posts to a single goal post at the other end of the field.you may only use one metre stick,and two retort stands.you are not permitted to walk onto
asked by shan 
Science / ELA
Can you see if this essay below needs some corrections that may need to be fixed: Rocks go through the rock cycle; each type of rock can be changed into any other type of Rocks. Rocks are continuously formed; soon later the rocks start to erode and then
asked by Anono.( CAN SOMEONE CHECK THIS PLZZZ!!!) 
MATH
If A is a subset of B (not necessarily proper) and B is a subset of C (not necessarily proper) the A is a proper subset of C. True or False if false must provide a counterexample
asked by Vanessa 
physics
A loop of wire is lying flat on a tabletop. A uniform magnetic field is directed vertically UPWARDS such that it is perpendicular to the tabletop (and the loop). Beyond the edge of the table, the magnetic field is zero. Imagine that you are looking DOWN on
asked by Kelly 
physics
A loop of wire is lying flat on a tabletop. A uniform magnetic field is directed vertically UPWARDS such that it is perpendicular to the tabletop (and the loop). Beyond the edge of the table, the magnetic field is zero. Imagine that you are looking DOWN on
asked by Kelly 
geometry
a cable attach to the top of a tv antenna is 100ft long if the cable is fasten to the ground 28 ft from the base of the antenna how tall is the antenna?
asked by angel 
physics
A loop of wire is lying flat on a tabletop. A uniform magnetic field is directed vertically UPWARDS such that it is perpendicular to the tabletop (and the loop). Beyond the edge of the table, the magnetic field is zero. Imagine that you are looking DOWN on
asked by Kelly 
Chemistry
Li2SO4+AgNO3= ???
asked by Artie 
physics
A loop of wire is lying flat on a tabletop. A uniform magnetic field is directed vertically UPWARDS such that it is perpendicular to the tabletop (and the loop). Beyond the edge of the table, the magnetic field is zero. Imagine that you are looking DOWN on
asked by Kelly 
chemistry
A 25 mL solution of .5M NaOH is titrated until neutralization into a 50mL sample of HCl. What was the concentration of HCl?
asked by E 
physics
A loop of wire is lying flat on a tabletop. A uniform magnetic field is directed vertically UPWARDS such that it is perpendicular to the tabletop (and the loop). Beyond the edge of the table, the magnetic field is zero. Imagine that you are looking DOWN on
asked by Kelly 
Physics
A person is riding a bicycle, the wheels of a bicycle have an angular velocity of +18.5 rad/s. Then, the brakes are applied. In coming to rest, each wheel makes an angular displacement of +14.5 revolutions. (a) How much time does it take for the bike to
asked by Lauren 
HChemistry
A piece of zinc with a mass of 0.100 g reacts with 20.0 mL of 6.0 M HCl at a temperature of 25 C and a pressure of 750 mm Hg in 600 seconds. Calculate the average rate at which the hydrogen gas is produced in mL/sec.
asked by mbm 
Math
I am writing a Commerical/Advertisement and my audience is single Proportion looking for the perfect match. My Topic I am making the AD is: Proportions: When are two fractions ever a perfect match to each other? I don't understand what my topic is and what
asked by Sumaiya 
physics
If a metal wire carries a current of 130 mA, how long does it take for 3.50×10 20 electrons to pass a given crosssectional area anywhere along the wire? The magnitude of the charge on an electron is 1.6 × 10 −19 C. Answer in units of s.
asked by bre 
Algebra 2
Did I do this correctly, D(p)= 200060p S(p)=460+94p p is the price in dollars a) find those values of p for which demand exceeds supply 200060P > 460 + 94p 2460 > 154p $15.97 > p b) find those value of p for which demand is less than supply 200060P <
asked by Monica 
physics
At 25°C, sound can travel 100 meters across a football field in 0.29 seconds. Determine the velocity of these sound waves.
asked by aaaskd 
chemistry
If we have 0.128 grams of copper (ll) sukfate how many molecules do we have?
asked by Bryce 
Math
Write and equation to match the problem situation below. Callie has 4 rimes as many CDs as she has DVDs. She has a total of 60 CDs and DVD. How many dvds, d, does callie have?
asked by Please help! 
Math
Marc has completed 60% of his science project. What fraction of his project has he NOT completed?
asked by Matherz 
physics
A skateboard track has the form of a circular arc with a 3.20 m radius, extending to an angle of 90.0° relative to the vertical on either side of the lowest point, as shown in Figure 824. A 67.0 kg skateboarder starts from rest at the top of the circular
asked by king 
math
graphing with out an equasion...y=x
asked by Scott 
math
bob earned $245 last week. She spent 9% of her earnings on movies. What deciaml represents this percent?
asked by Idislikepimples 
MATH
Find the solution of the given initial value problem. ty'+(t+1)y=t y(ln2)=0 t < 0
asked by ALEX