Questions Asked on
September 21, 2010

chem
Which of the following elements would you expect to gain electrons in chemical changes? (Select all that apply.) gold chromium zirconium nitrogen iodine
asked by Sara 
physics
a cheetah can accelerate from rest to 24 m/s in 2.0 s . Assuming the acceleration is constant over the time interval, a)what is the magnitude of the acceleration of the cheetah? b) what is the distance traveled by the cheetah in these 2.0 s.? c) a runner
asked by tatiana 
Physics
A chain composed of four identical links is suspended by a rope and does not move. How many force vectors would be drawn on the free body diagram of each link and which direction would they point? My answer:  FIRST LINK (top): Upward force from
asked by Stanley 
physics
Engineers are developing new types of guns that might someday be used to launch satellites as if they were bullets. One such gun can give a small object a velocity of 2.5 km/s while moving it through a distance of only 1.7 cm. (a) What acceleration does
asked by Anonymous 
physiscs
a pendulum of the length L is suspended from the ceiling of an elevator. When the elevator is at rest , the period of the pendulum is T. In instant when the pendulum reaches its highest position the elevator starts the free fall. What is the period of the
asked by Ray 
science
in a symbiotic relationship a) both organisms always benefit b) both organisms are harmed c) both organisms never benefit d) at least one organism always benefits e) neither organisms is affected d
asked by pam 
Calculus
Find expressions for the quadratic functions whose graphs are shown. One graph has the point (4,2) plotted in which the parabola passes through (Ushaped parabola right side up) The vertex is at (3,0) and the parabola does not touch the yaxis for as much
asked by Chelsea 
Science
Calculate how much 95% ethyl alcohol will be required to dissolve 075g sulfanilamide at 78 degree Celsius. Knowing that solubility of sulfanilamide is 210 mg/ml at 78 degree Celsius, 14mg/ml at 0 Degree Celsius.
asked by Tammy 
Chemistry
Please help the question that I got is: Calculate how much 95% ethyl alcohol will be required to dissolve 075g sulfanilamide at 78 degree Celsius. Knowing that solubility of sulfanilamide is 210 mg/ml at 78 degree Celsius, 14mg/ml at 0 Degree Celsius.
asked by Andy 
Chemistry
a)What mass of water is produced from the complete combustion of 2.30×10−3 g of methane? b)What mass of oxygen is needed for the complete combustion of 2.30×10−3 g of methane? This is the unbalanced equation given: CH4+O2>CO2+H2O
asked by Cindy 
Chemistry
a). What mass of carbon dioxide is produced from the complete combustion of 2.30×10−3g of methane? b)What mass of carbon dioxide is produced from the complete combustion of 2.30×10−3 g of methane? Can someone step me through this?
asked by Holly J 
Physics
A projectile is launched from ground level to the top of a cliff which is 195 m away and 155 m high. If the projectile lands on top of the cliff 9.2 s after it is fired, find the initial velocity of the projectile (magnitude and direction). Neglect air
asked by Jamie 
Math
A real estate agent to sell a large apartment complex according to the following commission schedule: $45,000 plus 25% of the selling price in excess of $900,000. Assuming that the complex will sell at some price between $900,000 and $1,100,000, inclusive,
asked by Amy~ 
physics
A horizontal force of 100 N is required to push a piece of furniture across a floor at a constant velocity. what is the net force acting on the furniture? How much is the friction force that acts on the sliding furniture? How much friction acts on the
asked by m 
physics
If the back of the truck is 1.0 above the ground and the ramp is inclined at 26, how much time do the workers have to get to the piano before it reaches the bottom of the ramp?
asked by DP 
physics
A man whose mass is 75kg walks up a flight of 12 steps each 20 cm high in 5 seconds . Find the power he develops in watts
asked by Felie 
algebra 1
the number of students attending the Fall play was 150 more than the number of adults attending. Student tickets cost $3, and adult tickets cost $5. A total of $4730 was collected. How many students attend the play?
asked by rae 
physics
A small map shows New York to be 486 miles in a direction 8° north of east from Columbus. The same map shows that Buffalo is 302 miles in a direction 56° west of north from New York. Assume a flat Earth, and use the given information to find the
asked by Anonymous 
math
a custom printing store is planning on adding painters caps to its product line. For the first year the fixed costs for setting up production are $15,000 the variable costs for producing a dozen caps are $8 the revenue on each dozen caps will be $20 find
asked by Anonymous 
chemistry
calculate the amount of heat released when 50g of water at 100degrees hits the skin, condenses, cools the body to 37 degrees
asked by christian 
chemistry
Commercially available concentrated sulfuric acid is 18.0 M H2SO4. Calculate the volume (in mL) of concentrated sulfuric acid required to prepare 1.60 L of 0.320 M H2SO4 solution.
asked by Jen 
physics
You throw a ball upward from a window at a speed of 2.9 m/s. How fast will it be moving when it hits the sidewalk 2.2 m below?
asked by Anonymous 
6th grade social studies
When and why did the cultures od Egypt an Nubia begin to mix? The cultures of Egypt and Nubia begin to mix as people and goods passed between Egypt and Nubia. The two cultures mix because Egypt conquered most of Nubia and ruled it for 100 years and during
asked by Reed 
physics
An airplane is flying horizontally with a constant velocity of 170 m/s at an altitude of 4500 m when it drops a package. (a) How long does it take for the package to reach the ground? ___s (b) What is the distance between the airplane and the package when
asked by jayson 
college physics
A 78kg man stands on a spring scale in an elevator. Starting from rest, the elevator ascends, attaining its maximum speed of 1.2 m/s in 0.74 s. The elevator travels with this constant speed for 5.0 s, undergoes a uniform negative acceleration for 1.8 s,
asked by justin 
physics
A diver running 1.8m/s dives out horizontally from the edge of a vertical cliff and 3.0s later reaches the water below. How high was the cliff, and how far from its base did the diver hit the water?
asked by Mark 
college physics
A football punter accelerates a football from rest to a speed of 7 m/s during the time in which his toe is in contact with the ball (about 0.26 s). If the football has a mass of 0.50 kg, what average force does the punter exert on the ball?
asked by morgan 
Chemistry
ammonia gas reacts with copper (ii) oxide at high temperatures to produce elemental nitrogen, copper metal, and water vapor. Assume that 36.2g ammonia reacts with 180.8 g copper ii oxide. (balanced equation: 2 NH4 (ammonium) (g) + 4 CuO (copper ii oxide)
asked by Jack 
college physics
To stretch a spring 7.00 cm from its unstretched length, 16.0 J of work must be done. What is the force constant of this spring? What magnitude force is needed to stretch the spring 7.00 cm from its unstretched length? How much work must be done to
asked by jon 
Math
How do I write an equation or an inequality for this: the product of a number z and 12 is 60
asked by Lizzy 
science
a cookie a certain mass. explain why the mass would not change if you break the cookie in half.
asked by bethany 
chemistry
3) A graduated cylinder has 25.0mL of water in it before an aluminum cube with the mass of 10.0g is added to it. What is the new level of water in the cylinder?
asked by Kary 
Math
a grocery clerk nstacks three rows of can of fruit for a display, each of the top two rows has 2 fewer cans than the row beneath it, there are 30 cans altogether, how many cans are in each row?
asked by Lizzy 
Math
If light travels 10,000 km in 3.3 x 102 sec, how long will it take light to travel one meter.
asked by Samantha 
Chemistry
a)How many grams of NH3 can be produced from 2.84mol of N2. b)How many grams of H2 are needed to produce 14.86g of NH3? balanced equation: 3H2+N2>2HN3
asked by Amy 
physics
Suppose I throw a ball straight up at an initial speed of 10 m/s. Suppose I'm 2 meters tall (about 6 feet) and the ball leaves my hand at 2 meters from the ground. How fast is it going at its highest point? How fast is it going on its way back down at 2
asked by Sarah 
physics
You throw a ball downward from a window at a speed of 1.9 m/s. How fast will it be moving when it hits the sidewalk 2.2 m below?
asked by Anonymous 
PHYSICS
1. to make a secure fit, rivets that are larger than the rivet hole are often used and the rivet is cooled (usually in dry ice) before it is placed in the hole. a steel rivet 1.871 cm in diameter is to be placed in a hole 1.869 cm in diameter at 20 degree
asked by JT 
Public Finance
Suppose the marginal social cost of television sets is $100. This is constant and equal to the average cost of television sets. The annual demand for television sets is given by the following equation: Q = 200,000 – 500P2. If television sets are sold in
asked by Barbara 
physics
A charge of 6.00mC is placed at each corner of a square 0.100 m on a side. Determine the magnitude and direction of the force on each charge.
asked by john 
physics
A high diver of mass 50.0 kg jumps off a board 10.0 m above the water. If her downward motion is stopped 1.80 s after she enters the water, what average force did the water exert on her?
asked by mark 
physics
One of the fastest recorded pitches in majorleague baseball, thrown by Billy Wagner in 2003, was clocked at 101.0 mi/h. If a pitch were thrown horizontally with this velocity, how far would the ball fall vertically by the time it reached home plate, 60.5
asked by jay 
Physics Please Answer
1. to make a secure fit, rivets that are larger than the rivet hole are often used and the rivet is cooled (usually in dry ice) before it is placed in the hole. a steel rivet 1.871 cm in diameter is to be placed in a hole 1.869 cm in diameter at 20 degree
asked by JT 
physics
An elevator without a ceiling is ascending with a constant speed of 9.7 m/s. A boy on the elevator shoots a ball directly upward, from a height of 2.0 m above the elevator floor, just as the elevator floor is 25 m above the ground. The initial speed of the
asked by kay 
physics
Two long, straight wires are separated by 0.12 m. The wires carry currents of 8.0 A in opposite directions, as the drawing indicates. (a) Find the magnitude of the net magnetic field at the point A. ___T (b) Find the magnitude of the net magnetic field at
asked by Anonymous 
physics
A suspension bridge is 66.0 m above the level base of a gorge. A stone is thrown or dropped from the bridge. At the location of the bridge, g has been measured to be 9.83 m/s2. In each of the following, assume that there is no air resistance. (a) If you
asked by Kacy 
Physics
Two baseballs are thrown off the top of a building that is 7.24 m high. Both are thrown with initial speed of 63.3 mph. Ball 1 is thrown horizontally, and ball 2 is thrown straight down. What is the difference in the speeds of the two balls when they touch
asked by Gina 
Chemistry
Suppose that the KMnO4 (aq) were standardized by reaction with As2O3. As2O3 + MnO4 + H+ +H2O yields H3AsO4 + Mn2+ (not balanced). If a 0.1322g sample that is 99.16 % As2O3 by mass had been used in the titration, how many milliliters of the 0.02140 M
asked by Kyle 
physics
A certain car is capable of accelerating at a rate of +0.60 m/s2. How long does it take for this car to go from a speed of 20 mi/h to a speed of 65 mi/h?
asked by Bill 
Chemistry
"How many moles of oxygen are required to react completely with 5 mol C(8)H(18)?" 2C(8)H(18) + 25O(2) => 16CO(2) + 18 H(2)O In the question, how do I know if "oxygen" means the molecule O(2) or the element O?
asked by Gray 
college physics
Two blocks each of mass m = 4.10 kg are fastened to the top of an elevator as in the figure below. (a) If the elevator accelerates upward at 1.6 m/s2, find the tensions T1 and T2 in the upper and lower strings. (b) If the strings can withstand a maximum
asked by miles 
Chemistry
1) A jar is filled with mercury and has a volume of 500.mL. What is the mass of mercury in the jar? Show your work for credit.
asked by Kary 
college
Assume that the student has a cup with 13 writing implements: 7 pencils, 4 ball point pens, and 2 felttip pens. In how many ways can the student select 9 writing implements if no more than one ball point pen is selected?
asked by finite 
Calculus
According to Kleiber's Law, the metabolic rate P (in kilocalories per day) and body mass m (in kilograms) of an animal are related by a threequarter power law given below. Estimate the increase in metabolic rate when body mass increases from 65 to 66 kg.
asked by Rey 
geography
What does Pig ears stand for?
asked by Dylan 
physics
A delivery truck travels 20 blocks south, 24 blocks west and 25 blocks north. What is its final displacement from the origin? Assume the blocks are equal length. Need magnitude of blocks, and direction(counterclockwise from east is positive)
asked by jake 
Principles of Accounting I
It is standard procedures, or GAAP, to make an adjusting entry to remove the current year's principle from the longterm liabilities. You are the bookkeeper for biker's business. Biker's business has a bank loan that requires a current ratio of 1.5 times.
asked by Lizzie Nelson 
physics
The pilot of an airplane traveling 240 km/h wants to drop supplies to flood victims isolated on a patch of land 160 m below. The supplies should be dropped how many seconds before the plane is directly overhead?
asked by Sarah 
Physics
A chain composed of four identical links is suspended by a rope and does not move. How many force vectors would be drawn on the free body diagram of each link and which direction would they point?
asked by Ignatius 
Physics
Two cars are moving. The first car has twice the mass of the second car but only half as much kinetic energy. When both cars increase their speed by 4.54 m/s, they then have the same kinetic energy. Calculate the original speeds of the two cars. first car
asked by Gina 
physics
Vector A has a magnitude of 23 units and points in the positive ydirection. When vector B is added to A, the resultant vector A+B points in the negative ydirection with a magnitude of 15 units. Find the magnitude of B?
asked by jc 
physics
What average force is required to stop an 1300 kg car in 9.0 s if the car is traveling at 90 km/h?
asked by cindy 
calculus
The height (in feet) of a skydiver at time t (in seconds) after opening his parachute is given by h(t) = 4000 – 19t. Find the skydiver's velocity after the parachute opens. The answer should be in feet per seconds. I would appreciate if somebody
asked by Mark 
Physics
In the figure, particle A moves along the line y = 26 m with a constant velocity of magnitude 2.6 m/s and parallel to the x axis. At the instant particle A passes the y axis, particle B leaves the origin with zero initial speed and constant acceleration of
asked by Anonymous 
Physics
A horse draws a sled horizontally across a snowcovered field. The coefficient of friction between the sled and the snow is 0.195, and the mass of the sled, including the load, is 209.8 kg. If the horse moves the sled at a constant speed of 1.730 m/s, what
asked by Gina 
Physics
A chain composed of four identical links is suspended by a rope and does not move. What are the forces on each chain? (include where they come from)
asked by Tyrone 
physics
A student bikes to school by traveling first d_N = 1.10 \rm {miles} north, then d_W = 0.500 \rm {miles} west, and finally d_S = 0.200 \rm {miles} south. If a bird were to start out from the origin (where the student starts) and fly directly (in a straight
asked by lenny 
math
translate each of the following into a verbal phrase. 1.4+3x 2.3x4 3.2(x+3) 4.5+1/3x 5.2a+3b 6.6x5 7.1/2x4 8.x3/7 9.5x9y 10.(5+x)+2 11.15 . x/5 12.3+x/3+8
asked by Niño Luther 
Management Accounting
Monash Company is currently manufacturing part Z911, producing 40,000 units annually. The part is used in the production of several products made by Monash. The cost per unit for Z911 is as follows: Direct Materials $9.00 Direct Labour 3.00 Variable
asked by Ken 
physic
The velocity vector V1 has a magnitude of 3.0 m/s and is directed along the +xaxis. The velocity vector V2 has a magnitude of 2.0 m/s. The sum of the two is V3, so that V3 = V1+V2 true or false for each question The magnitude of V3 can be 3.0 m/s The
asked by emma 
physics
Rocketpowered sleds are used to test the responses of humans to acceleration. Starting from rest, one sled can reach a speed of 444 m/s in 1.80 s and can be brought to a stop again in 2.15 s. (a) Calculate the acceleration of the sled when starting, and
asked by Anonymous 
3rd grade
explain how to compare 8,563 and 8699
asked by Anonymous 
Physics
A spring with a spring constant of 223.9 N/m is compressed by 0.220 m. Then a steel ball bearing of mass 0.0372 kg is put against the end of the spring, and the spring is released. What is the speed of the ball bearing right after it loses contact with the
asked by Gina 
chemistry
A 0.4272g sample of a potassium hydroxide – lithium hydroxide mixture requires 26.94mL of 0.3385M for its titration to the equivalence point. What is the mass percent lithium hydroxide in this mixture?
asked by henry 
Science
a cumulus cloud is growing taller, what will happen to the density of the air beneath it? explain
asked by Misa 
physics
a cannon ball is shot from a 100 m high cliff with an inital velocity of 24m/s and at an angle of 32 degrees. what is the overall final velocity of the cannonball?
asked by Connor 
chemistry
What is the volume in milliliters of 7.24 {\rm g} of acetone?
asked by cathie 
physics
You drop a stone into a deep well and hear it hit the bottom 1.90 s later. This is the time it takes for the stone to fall to the bottom of the well, plus the time it takes for the sound of the stone hitting the bottom to reach you. Sound travels about 343
asked by faith 
physics
You push a large 32 kg crate across the floor with a force F=330 N at an angle of 21 degrees below the horizontal. If the coefficient of kinetic friction between the crate and the floor is 0.45, what is the acceleration of the crate?
asked by Ka 
physics
An athlete executing a long jumper leaves the ground at a 27.0 degree angle and travels 7.89 m. What was the takeoff speed?
asked by sara 
Physics
A 1500 kg automobile travels at a speed of 105 km/h along a straight concrete highway. Faced with an emergency situation, the driver jams on the brakes, and the car skids to a stop. (a) What will be the car's stopping distance for dry pavement (µ = 0.85)?
asked by Tom 
Honors Physics
A mass, m1 = 5.00 kg, resting on a frictionless horizontal table is connected to a cable that passes over a pulley and then is fastened to a hanging mass, m2 = 9.0 kg. Find the acceleration of each mass and the tension in the cable. PLEASE HELP!
asked by Chubba 
Physics
A chain composed of four identical links is suspended by a rope and does not move. What are the forces on each chain? (include where they come from)
asked by Bill 
Accounting
Can financial statement users of notforprofit hospitals’ financial statements expect to be fully informed regarding affiliated parties, such as the linkage between St. Jude Children’s Research Hospital, ALSAC, and the foundation cited?
asked by Anonymous 
English
For the Richard Cory poem: 1) What is the denotation of "crown" in this use? "sole to crown"  Would it be that they thought him to be a king?
asked by Amy~ 
physics
An athlete executing a long jumper leaves the ground at a 27.0 degree angle and travels 7.89 m. What was the takeoff speed? If this speed were increased by just 5.0%, how much longer would the jump be?
asked by cindy 
Algebra 1
could you tell me where I can get the "why do girls like guys who wear shirts with eight buttons?" worksheet to print free online?
asked by Elizabeth 
Chemistry
Hello. My teacher gave us a worksheet today she tried to explain it but I still don't understand it can someone help me please? 1) A jar is filled with mercury and has a volume of 500.mL. What is the mass of mercury in the jar? Show your work for credit.
asked by Treasan 
Physics
Can someone help me to understand how to work out this problem? The pilot of an airplane traveling 240 km/h wants to drop supplies to flood victims isolated on a patch of land 160 m below. The supplies should be dropped how many seconds before the plane is
asked by lisa 
physics
A fully loaded 737 aircraft takes off at 250 {\rm km/h}.
asked by Anonymous 
American Government
I have to do a 5 minute presentation on George Washington and I have to focus on his contributions towards the Constitution. All the sites I go to have pretty much the same information. Does anyone have sites that could help me?
asked by Leanna 
Grammar
Write each possessive noun or contraction with an apostrophe. 1. Woodrow Wilson was Americas twentyeighth president. America's 2. As a student at Princeton, joined the schools debating society. schools' 3. Before becoming president, he served as Princeton
asked by TiffanyJ 
6th grade social studies
Okay, here's another. Describe the series of events that led to the end of Egypt's power in the Nile River Valley. My answerThe series of events started with Egypt having trouble with keeping conquered people under control,then they were conquered by the
asked by Reed 
Algebra
Determine if the following two planes 2x+3yz=4 and 3x4y6z=1 are parallel, orthogonal or coincidental
asked by Matthew 
Astronomy
A photon of which color of light carries the least energy. Red Yellow Green Blue All photons have the same energy.
asked by Dre 
Algebra II
This deals with quadratic functionsIf I have a graph with points h=5, k =3 and they ask for the translation, would it be {5,3} or would the translation just be {5,3}
asked by Tom 
math
A cyclist leaves his training base for a morning workout, riding at the rate of 18 mph. One hour later, his support staff leaves the base in a car going 52 mph in the same direction. How long will it take the support staff to catch up with the cyclist once
asked by aaron kennedy 
algebra 1
When studying probability, a method used for counting the number of possible outcomes is a ______. a.tree diagram b.dependent event c.relative frequency d.simulation A?
asked by Lily 
Chemistry
Anhydrous CuSO4 can be used to dry liquids in which it is insoluble. The CuSO4 is converted to CuSO4.5H2O, which can be filtered off from the liquid. What is the minimum mass of anhydrous CuSO4 needed to remove 12.4g H2O from a tankful of gasoline?
asked by Kaylee 
Physics
A brick is thrown upward from the top of a building at an angle of 30° to the horizontal and with an initial speed of 11 m/s. If the brick is in flight for 3.2 s, how tall is the building? ___m
asked by jc 
physics
A ball is thrown horizontally from the roof of a building 33.0 m tall and lands 20.5 m from the base. What was the ball's initial speed?
asked by Jamie 
Chemistry
What mass of protons would be required to just neutralize the charge of 1.5 g of electrons?
asked by Evy 
science
An organism's ability to maintain homeostasis is important to it's survival. Explain why an organism that lives on land has more complex mechanisms to maintain a stable internal environment than organims that live in water.
asked by Jaci 
Math
The entire surface of a solid cube with a length of 6 inches is painted. The cube is then cut into cubes each with edge of length 1 inch. How many smaller cubes are there? How many of the smaller cubes have paint on exactly 1 face?
asked by Jackie 
geometry
As the marketing designer for Burger King, you are given a 4 in by 6 in logo and have been told to create an advertisement that is six times larger. What is the area of your advertisement (in feet)? [12 inches = 1 ft] A. 6 ft2 B. 36 ft2 C. 72 ft2 D. 3 ft2
asked by ashley 
statistics
Job Sat. INTR. EXTR. Benefits 5.2 5.5 6.8 1.4 5.1 5.5 5.5 5.4 5.8 5.2 4.6 6.2 5.5 5.3 5.7 2.3 3.2 4.7 5.6 4.5 5.2 5.5 5.5 5.4 5.1 5.2 4.6 6.2 5.8 5.3 5.7 2.3 5.3 4.7 5.6 4.5 5.9 5.4 5.6 5.4 3.7 6.2 5.5 6.2 5.5 5.2 4.6 6.2 5.8 5.3 5.7 2.3 5.3 4.7 5.6 4.5
asked by chris 
science
Check my answers? thanks ppl 1. which of the folowing is NOT considered an organism? A an oak leaf B a spider C an elephant D a bacteria cell is it D. 2.to which domain of life do humans belong? A. animals B. eukarya C. archae D. none of the above IS IT D
asked by Sara! 
Algebra 1
Find all sets of four consecutive even whole numbers whose sum is less than 35
asked by Anonymous 
Science
A bus makes a 10 mile journey throuh town. Its top speed is 30mph and its mean speed its 10 mph. Explain why these speeds are different?
asked by Remy 
physics
The pilot of an airplane traveling 180 km/h wants to drop supplies to flood victims isolated on a patch of land 125 m below. The supplies should be dropped how many seconds before the plane is directly overhead? ______s
asked by Andy 
Physics
A particle of mass m is subjected to a force acting in the xdirection. Fx = (3.2 + 0.55x) N. Find the work done by the force as the particle moves from x = 0 to x = 4.5 m. 1
asked by Gina 
To Brittany and Ryan
Because of your unacceptable remarks about another student's homework assignment, you have been banned on a temporary basis. We'll see in a couple of days if you can demonstrate civility online.
asked by Writeacher 
Geometry
The perimeter of a regular pentagon is 31 cm. Find the length of each side.
asked by Bob 
Calculus
An airplane is flying at a speed of 350 mi/h at an altitude of one mile and passes directly over a radar station at time t=0. a) Express the horizontal distance d (in miles) that the plane has flown as a function of t. b) Express the distance s between the
asked by Chelsea 
science
1.Describe how the hot water and the cold water moved when the divider was lifted. 2.Use your understanding of density to explain the motion of the water.
asked by Misa 
Math
Which point on the circle x^2+y^212x4y=50 is closest to the origin? Which point is farthest from the origin? Explain.
asked by Danielle 
Science
A bus makes a 10 mile journey throuh town. Its top speed is 30mph and its mean speed its mph. Explain why these speeds are different?
asked by Lucy 
math/physics
A motorboat whose speed in still water is 3.00 m/s must aim upstream at an angle of 27.0 degrees (with respect to a line perpendicular to the shore) in order to travel directly across the stream. What is the speed of the current?
asked by cindy 
math
solve the given equation for the variable of x x/3+3/5=5/6
asked by Anonymous 
college
Pretend the program in Senegal had been reducing infant mortality at a rate of 11 % per year. How long would it take for infant mortality to be reduced by 39 %?
asked by Marissa 
algebra
what is the answer to this riddle? "what is the title of this picture?
asked by Yuumei 
Caclulus, bobpursley HELP!
Sorry for bothering you on this one question but I just replied to my original problem if you could help me with that.
asked by Leanna 
physics
A motorboat whose speed in still water is 3.00 m/s must aim upstream at an angle of 27.0^\circ (with respect to a line perpendicular to the shore) in order to travel directly across the stream. What is the speed of the current?
asked by Mark 
math
Kelly subtracted 2.3 from 20 and got 17.7. Explain why this answer is resonable.
asked by Karen 
Physical Science
Need help please. the once with the ( ) is my answer but i am not sure if it right. Thanks for your help. 15. If the distance from a converging lens to the object is less than the focal length of the lens, the image will be A. real, inverted, and larger
asked by molly 
communication
What are the concepts of assertive communication? What are the benefits of being an assertive nurse? The only thing I can come up with is that being an assertive nurse would allow you to stand up to a physician or authority when you feel they have done
asked by Angela 
college physics
After falling from rest from a height of 34 m, a 0.47 kg ball rebounds upward, reaching a height of 24 m. If the contact between ball and ground lasted 1.8 ms, what average force was exerted on the ball?
asked by halley 
Physics
You push your couch a distance of 3.8 m across the living room floor with a horizontal force of 180.0 N. The force of friction is 136.0 N. What is the work done by you, by the friction force, by gravity, and by the net force? you 1 friction force 2 gravity
asked by Gina 
Physics
A small blimp is used for advertising purposes at a football game. It has a mass of 93.0 kg and is attached by a towrope to a truck on the ground. The towrope makes an angle of 53.3° downward from the horizontal, and the blimp hovers at a constant height
asked by Gina 
Calc
The manager of a weekend flea market knows from past experience that if he charges x dollars for a rental space at the market, then the number y of spaces he can rent is given by the equation y= 2004x. Is this correct? Slope represents the relationship
asked by Chelsea 
algebra
In a triangle ABC , angle B is 4 times angle A and angle C is 17 degrees less than 5 times angle A. Find the size of the angles.
asked by Sam 
Chem bobpursley
What mass of protons would be required to just neutralize the charge of 1.5 g of electrons? my teacher said .0015kg times 1e/.00091e27kg times 1pt/1e times 1.67262e27 over 1 p chem  bobpursley, Tuesday, September 21, 2010 at 6:48pm That is what I
asked by Sara 
physics
A particles has a mass of 0.5 kg and a velocity of 734 m/s along the x axis when a force of 21 N along the y axis acts on the particle at right angles to the velocity. The acceleration of the particle is ____ m/s2
asked by Anonymous 
Calculus
If the function f is defined by f(x)=x^22x, find limit h>0 (f(3+h)(f(3h))/2h
asked by Leanna 
math
find the linear function f(x(=mx+b whose graph has the given slope and y intercept. slope is +19/15 and yintercept is (0,4) the linear function is f(x)=
asked by Anonymous 
physics
An airplane flies 200 km due west from city A to city B and then 305 km in the direction of 30.0° north of west from city B to city C. (a) In straightline distance, how far is city C from city A? ___km (b) Relative to city A, in what direction is city C?
asked by jc 
calculus
The position of a particle moving in a straight line during a 2second trip is given below. s(t) = 2t 2  6t + 7 cm (a) What is the average velocity for the entire trip? (Assume the 2 second interval starts at t = 0.) 1 cm/second (b) Find a time at which
asked by Mike 
Math
2a²+5a+3
asked by Rox 
college physics
A cannon is fired from a cliff 200 m high downward at an angle of 30o with respect to the horizontal. If the muzzle velocity is 34 m/s, what is its speed (in m/s) when it hits the ground?
asked by roxy 
physics
Consider again the problem of a car traveling along a banked turn. Sometimes roads have a "reversed" banking angle. That is, the road is tilted "away" from the center of curvature of the road. If the coefficient of static friction between the tires and the
asked by tom 
science
What mass of protons would be required to just neutralize the charge of 1.7 g of electrons? I thought it was simple because 1 proton maxes out 1 electron but my teacher started talking abou this complicated way of doing it and i didn't get it :( can
asked by Lily 
port maria prep
un scramble this word achtres
asked by dominique 
Math
Find the area of the surface generated by revolving the curve y = (x + 3)^1/2, 2 ≤ x ≤ 4 about the xaxis.
asked by Alex 
world history
Did Islam become more less influential in West Africa from the 700s to the 1400s?
asked by Autumn 
PHYSICS
An airplane has a mass of 34,500 kg and takes off under the influence of a constant net force of 44,500 N. What is the net force that acts on the plane's 79 kg pilot?
asked by veronica 
physics
Consider a simple harmonic oscillation with m=0.5kg, k=10N/m and amplitude A=3cm. What is the total energy of the oscillation?
asked by Mpho mj 
physics
HELP PLEASE!!! A satellite moves in a circular orbit around Earth at a speed of 5085 m/s. (a) Determine the satellite's altitude above the surface of Earth. (b) Determine the period of the satellite's orbit.
asked by bill 
math
x=((30)/(5.15+1.84i))+(5.15+1.84i) i= square root of (1) final answer of x=10.3 please show me how you drive this equation to get the 10.3. thank you so much.
asked by layth 
biology  Genetic probability
Black coat colour in Labrador Retrievers is produced by the dominant B allele. Brown labs are homozygous recessive (bb). Duke, a black male, whose mother was brown, is mated with Shadow, a black female, who in a previous mating with another father produced
asked by Axel 
Algebra
How do I solve a quadratic equation x^2  x = 30 by completing the square I don't understandcould someone just explain the steps to solving this
asked by Jamie 
PHYSICS
An arrow is shot into the air at an angle of 59.6° above the horizontal with a speed of 21.5 m/s. (a) What are the x and ycomponents of the velocity of the arrow 3.1 s after it leaves the bowstring? vx = m/s vy = m/s (b) What are the x and ycomponents
asked by Kacy 
math
phil took 1/5 of a piece of cheese and rena took 4/9 of the remaining amount?
asked by ishan 
Spanish
Indicate the relationships between the family members listed below Modelos: yo / mi tía Yo soy el (la) sobrino(a) de mi tía. mis abuelos / mi padre Mis abuelos son los padres de mi padre 1.mi madre / mi hijo(a) 2.mis primos / mi mamá
asked by christopher 
8th grade
HOW CAN SOCIAL DEVELOPMENT IMPROVE THE ECONOMIC DEVELOPMENT OF A COUNTRY?
asked by SANAM 
PHYSICSSS!
A brass lid screws tightly onto a glass jar at 20 oC. To help open the jar, it can be placed into a bath of hot water. After this treatment, the temperature of the lid and the jar are both 60 oC. The inside diameter of the lid is 8.0 cm at 20 oC. Find the
asked by JT 
physics
A ball is thrown horizontally from the roof of a building 60 m tall and lands 45 m from the base. What was the ball's initial speed? _______m/s
asked by Andy 
Social Studies
What goes arund the world but stays in a corner?
asked by Dorothy 
AED 201
Determine which factors may explain that most of the higher perpupil expenditures are found in the Northeastern and upperMidwest states and the lower perpupil expenditures are found in the South and West. In your opinion, what must happen to create a
asked by Jasmine 
physics
A net force of 295 N accelerates a bike and rider at 2.60 m/s^2. What is the mass of the bike and rider together?
asked by vicki 
Algebra
Ok, so , I have the question: 5=8+5f. I'ev figured out that I have to add 8 to both sides of the equation,but now I'm stuck because I'm left with 3+5f=? And I can't figure out what should be on the other side of the equals sign. Please help! I'm a
asked by Amanda 
3rd grade
Ashton broke apart a numer into 31+7. What number did he start with?
asked by Nicole 
math
mary has 22 ribbons some of the ribbons are first place what expression shows how many of mary ribbons are not for first place
asked by michelle 
physics
The velocity vector V1 has a magnitude of 3.0 m/s and is directed along the +xaxis. The velocity vector V2 has a magnitude of 2.0 m/s. The sum of the two is V3, so that V3 = V1+V2 true for false The magnitude of V3 can be 3.0 m/s The xcomponent of V3
asked by Anonymous 
English
Can you please tell me if the following sentences are possible? I really don't know how to say it in English. Thank you. 1) I do the shopping at the market every Saturday. (Should I consider it a mistake if the sentence started with "every Saturday"?) 2)
asked by Franco 
science
What is the ultimate source of energy that powers the wind? Is my answer correct? The ultimate source of energy is the difference in air pressure.
asked by Reed 
biology
When considering the incresing complexity of atoms, molecules, cells, and tissues, you may notice that each step characteristics that were absent in the previous level. These characteristics, called emergent properties, demonstrate that the whole organism
asked by cynthia 
Science
What experiment did Matthias Schleiden do? What prior information did he use to help him with his research/discovery? What tools did he need to complete his experiment?
asked by Jay 
Chemistry  more advice needed thanks
I obtained a lot of dirty brown ppt the moment the mixture was poured into AgNO3 solution. Does this mean my NaOH sample contains a lot of chlorides? Could other silver halides be present? However for my control solution of 50ppm sodium chloride solution,a
asked by candy 
Computer Science
Mythical Man question: If it takes one person 3 months to complete a task, why does it take 4 people 6 months to complete the same task?
asked by Fayetta 
MATH
HOW MUCH LARGER THAN 3/4 INCHES IS 25/32?
asked by Johnny Lee 
PHYSICS
Taylor Swift leaves Philadelphia for a concert in Dallas. Kellie Pickler leaves at the same time, but in a different tour bus. After 2 hours, Taylor's bus has traveled 50% further than Kellie's bus. If Taylor's bus is going 30mph faster than kellies's bus,
asked by James 
11th grade
An automobile with an initial speed of 4.56 m/s accelerates uniformly at the rate of 2.4 m/s2. Find the final speed of the car after 4.4 s. Answer in units of m/s. (part 2 of 2) Find the displacement of the car after 4.4 s. Answer in units of m.
asked by Taylor 
Math
Reasoning question... in order from least to greatest the six numbers whose digits are 2,8, and 9...
asked by Kelsey 
math
x=((30)/(5.15+1.84i))+(5.15+1.84i) i= square root of (1) final answer of x=10.3 please show me how you drive this equation to get the 10.3. thank you so much.
asked by layth 
maths
For the reaction given below, how many grams of Na2CS3 are produced in the reaction of 65.0 mL of liquid CS2 (d = 1.26 g/mL) and 1.56 mol NaOH?
asked by srujan 
physics
A freight train has a mass of 1.7 multiplied by 107 kg. If the locomotive can exert a constant pull of 7.4 multiplied by 105 N, how long does it take to increase the speed of the train from rest to 68 km/h?
asked by kyle 
chemistry
How many ML of H2SO4 (20m) are needed to make 500ml of 5M solution?
asked by ad 
physics
A 1.20 block is attached to a spring with spring constant 14.0 . While the block is sitting at rest, a student hits it with a hammer and almost instantaneously gives it a speed of 50.0 . What is the amplitude of the subsequent oscillations?
asked by Mark 
Math
The Bee's bus passes Jamie's house every 20 minutes, and the Wasp bus passes every half an hour. Both buses pass thehouse together at 1:10 P.M. When is the next time the buses pass together?HELP!
asked by Etina 
physics
A 1.20 block is attached to a spring with spring constant 14.0 . While the block is sitting at rest, a student hits it with a hammer and almost instantaneously gives it a speed of 50.0 . What is The block's speed at the point where = 0.350 A?
asked by Anonymous 
math
i have math homework and it says i have to find 1 pair of rectangle that are simular and find the scale factor but i cant find the scale factorthe k rectangle is 4 cubes base by 3cubes height and n rectangle is 12 cubes base and 1 cube height but i cant
asked by hawk 
Chemistry
For the Following sets of compounds determine the best solvent, by looking at structure, also by looking at solubility vs. temp. Which is the best solvent for crystalization, in which the compound is too soluble, and in which solvent the compound is not
asked by Tammy 
Second order half life
At 100 degrees C , a certain substance undergoes secondorder decomposition with a halflife of 26 minutes. If the initial concentration of the substance is 3.9×10−2M , what is the value of the rate constant at 100degrees C? So I put in (1560seconds)
asked by Sar 
Chemistry
What is the minimum mass of anhydrous CuSO4 needed to remove 12.4g H2O from a tankful of gasoline?
asked by Kaylee 
Sociology college
Hello! i need help my homework In a Gemeinshaft society,people are more likely to 1) be highly dependent on the nuclear rather than the extended family 2) view life and morals in terms of how they affect the individual 3) stress formal education as a
asked by washington 
calculus
use the following tables for f(x)and g(x), and just fill in the tables shown below: Use the following two tables: x 0 1 2 3 4 5 y=g(x) 9 2 15 1 11 14 And fill in the following table: x 7 10 11 y=g(x6) a b c A= B= C=
asked by anonymous 
AlgebraPlease helpI'm confused
This deals with quadratic functionsIf I have a graph with h = (5)and k =3 and they ask for the translation, would it be {5,3} or would the translation just be {5,3} Do you take the opposite of the number when it is transalated from the graph or do you
asked by Tom 
Science
What experiment did Rudolph Virchow do? What prior information did he use to help him with his research/discovery? What tools did he need to complete his experiment?
asked by Jay 
physics
A 1.20 block is attached to a spring with spring constant 14.0 . While the block is sitting at rest, a student hits it with a hammer and almost instantaneously gives it a speed of 50.0 . What is The block's speed at the point where = 0.350 A?
asked by Anonymous 
English
Can you tell me which of the following three questions is best formulated? 1)Who mentioned Kurtz to Marlow for the first time? OR 2) Who was the first to mention Kurtz to Marlow? 3) Who first mentioned Kurtz to Marlow? I don't think "entertainer" is the
asked by Franco 
Com 220
what types of introduction and what type of conclusion do you plan to write for your research paper
asked by Pam 
Literature
What are some challenges faced b a king/leader in AngloSaxon society?
asked by Anonymous 
11th grade
When the shuttle bus comes to a sudden stop to avoid hitting a dog, it decelerates uniformly at 3.8 m/s2 as it slows from 8.8 m/s to 0 m/s. Find the time interval of acceleration for the bus. Answer in units of s.
asked by Taylor 
10th grade
how would you use the word civility in a sentence
asked by kedija 
Chemistry h/w
Hi, this is my first lab in 2nd semester of chemistry, and im not sure about my answers in the assignment can someone give it a quick look to check them? this is my phase diagram: tinypic. com/view.php?pic=1605yev&s=7 p.s. ignore the lone red dot its
asked by Jessie 
english
How is "The Handsomest Drowned Man in the World" an example of the author using social realism?
asked by Jess 
English
I still have some doubts about a few questions. Thank you for the help. 1) Are they both possible? What did Kurtz struggle against when dying/when he was close to dying? 2) I'm wearing braces because I've got crooked teeth. 3) I hardly ever put makeup on
asked by Franco 
Algebra 7th grade
My teacher has me working on something he calls "tinging fractions". What is this? What does it mean? How does it work?
asked by Lila 
physics
A cannon is fired from a cliff 200 m high downward at an angle of 30o with respect to the horizontal. If the muzzle velocity is 34 m/s, what is its speed (in m/s) when it hits the ground?
asked by Anonymous 
physics 101
What minimum speed does a 150g puck need to make it to the top of a 4.5m long, 21degree frictionless ramp?
asked by Robert 
Chemistry
Find the limiting reagent. 2 NH4 (g) + 4 CuO (s) ==> N2(g) + 4 Cu(s) + 4H2O (g) Please explain, thank you!
asked by Jack 
Chemistry  repost
Why 7ml of 10M HCl? Do I add 7ml of 10M HCl 1st slowly in ice bath, then slowly adjust the pH to 7 using 10M HCl? Then to dilute to 15ml in a graduated cylinder? Thanks Posted by candy on Tuesday, September 21, 2010 at 10:03am. The following is part of a
asked by candy 
Math
ALL the factors for 1,498,677,308,996? It's taking me too long....o.o Thank ye for the help! xD I thank: Ms. Sue for answering my Economics question, you rock! Someone please answer this! Lots of love from Pancake
asked by The Official Pancake Queen 
Math: Inequalities
How would I solve this inequality and graph? (x+2)((x^(2)x+1)) > 0 I got x > 2 and x^(2)x+1 > 0 How would I graph x^(2)x+1 > 0 because I can't factor it.
asked by Amy~ 
english
what does this line mean? A man being sometimes more generous when he has but a little money than when he has plenty
asked by Lilly 
geometry
write the definition " a prime number is a whole number greater then 1 and has exactly two factors" as a biconditional. i really need help on this!!i!!
asked by crystal 
chem
A carbon nucleus has six protons and six neutrons. How many electrons would it take to equal the mass of a carbon nucleus? my teacher said 6pt x conversion to make kg and then add that to 6nx conversion to make kilograms. then that times conversion for
asked by Sara 
Math
if three times the complement of an angle is subtracted from its supplement the result ends up being 59 degrees. Find the measure of the angle.
asked by Jordyn 
Business Math
Calculate the simple interest and maturity valve for the following problems. Round to the nearest cent as needed. 18,000,4 1/2%,18mo.
asked by Sandra 
6th grade math
Why can you simplify 5(5+30) using the distributive property?why can't u simplify 5(50)+3 using the distributive property?
asked by jaiden 
Chemistry  bobpursley pls help
Posted by candy on Tuesday, September 21, 2010 at 3:12pm. Yes, my NaOH is granular. Why 7ml of 10M HCl? Do I add 7ml of 10M HCl 1st slowly in ice bath, then slowly adjust the pH to 7 using 10M HCl? Then to dilute to 15ml in a graduated cylinder? Thanks
asked by candy 
social studies
what are these people famous for? like what did they do?: Henry the navigator Bartholomeu Dias hernan cortes queen isabella Ferdinand Magellan Martin Luther Montezuma Leif erikson
asked by BrXce 
math
"Mahpee was selling magazine subscriptions. He earned $5 plus $0.50 for each subscription he sold. If Mahpee earned $25, use the equation 25=5 + 0.50n to find the number of subscriptions n he sold." How do I figure this out??
asked by Rinoa 
chemistry
this is over significant digits. Indicate how many significant figures are in each of the following measurements: e) 4.0 X 105 kg i got 1 significant digit, but i'm not sure it if it's right... (& i can't ask my teacher, the situation is complicated)
asked by Ana 
Calculus
lim x>1 (x^471)/(x^91) With what method do I factor them with? Pascal triangle?
asked by sh 
calculus
The slopes of the tangent lines to the graph of the function f(x) increase as x increases. At what rate do the slopes of the tangent lines increase? f(x) = x2 – 1 Thanks for the help.. really need it.
asked by john 
calculus
The slopes of the tangent lines to the graph of the function f(x) increase as x increases. At what rate do the slopes of the tangent lines increase? f(x) = x2 – 6 PLZZ help
asked by Amanda 
11th grade
When Maggie applies the brakes of her car,the car slows uniformly from 15.4 m/s to 0m/s in 2.41 s.How far ahead of a stop sign must she apply her brakes in order to stop at the sign?Answer in units of m.
asked by Taylor 
Physics
An ideal spring has the spring constant k = 464 N/m. Calculate the distance this spring must be stretched from its equilibrium position for 26 J of work to be done. 1
asked by Gina 
science
we have done experiment in school and for homework we must write chemical reactions that have happend during the experiment. the experiment was like this : first we took an unknown substance than we have put some CuO , we mixed that two substances together
asked by ana 
Language arts
What are some facts about edgar allen p's story Never bet the Devil your head?
asked by jamica 
Economics
What is a tertiary industry? Please give me a specific answer please! =3 Thank ye! Pancake
asked by The Official Pancake Queen 
spanish1 homework check
1 5:15 las cinco y cuarto 2 6:12 doce, despues de seis 3 7:40 viente hasta que ocho 4 3:55 hasta que cinco cuatro 5 1:15 trimestre despues de un 6 12:45 es la una menos cuatro 7 12:00 son las doce 8 2:25 vienticinco des pues de dos 9 3:05 cinco des pues de
asked by whitney 
physics
The best leaper in the animal kingdom is the puma, which can jump to a height of 11.5 ft when leaving the ground at an angle of 52°. With what speed, in SI units, must the animal leave the ground to reach that height? ___m/s
asked by jay 
calculus
I have an even number of coins in my pcket exactly one third of them are dimes. Draw or stampo the coins i could have in my pocket. Record thir value.
asked by jose 
Algebra
Please help How do I solve the quadratic equation 3x^2 + 5x + 2 =0 Please explain the stepsI really don't get this
asked by Anita 
PHYSICS
Taylor Swift leaves Philadelphia for a concert in Dallas. Kellie Pickler leaves at the same time, but in a different tour bus. After 2 hours, Taylor's bus has traveled 50% further than Kellie's bus. If Taylor's bus is going 30mph faster than kellies's bus,
asked by Anna 
Algebra
This deals with quadratic functionsIf I have a graph with he = (5)and k =3 and they ask for the translation, would it be {5,3} or would the translation just be {5,3} Do you take the opposite of the number when it is transalated from the graph or do you
asked by Tom 
6th grade social studies
Okay for the when part of When did the cultures of Egypt and Nubia start to mix. My answer would be when the New Kingdom started to decline. Is this correct?
asked by Reed 
college physics
After falling from rest from a height of 34 m, a 0.47 kg ball rebounds upward, reaching a height of 24 m. If the contact between ball and ground lasted 1.8 ms, what average force was exerted on the ball?
asked by mary 
Math
Monica was collecting quarters and nickels in a jar. She kept track of the total value of the coins, as well as, how many coins were actually in the jar. However, she forgot specifically to track how many of each coin there is in the jar. If the total
asked by Flor 
Computer Science
I previously asked a mythical man question, and I still don't quite understand it. If if takes one person 3 months to make a quilt, why does it take 4 people 6 months to make a quilt?
asked by Fayetta 
physics
I DON'T KNOW WHAT IM DOING WRONG!!!!!!NASA has built centrifuges to enable astronauts to train in conditions in which the acceleration is very large. The device in the figure below shows one of these "human centrifuges." If the device has a radius of 8.3 m
asked by tom 
science
lists the properties of copper, sulfur aqnd copper sulfide
asked by nana 
physics
A cannon is fired from a cliff 200 m high downward at an angle of 30o with respect to the horizontal. If the muzzle velocity is 34 m/s, what is its speed (in m/s) when it hits the ground?
asked by Anonymous 
Science
What is a light year? How long does it take for light to reach the Earth from the Sun?
asked by Jim 
geography
How can the layers of a GIS be manipulated??? THANKS SO MUCH FOR YOUR HELP!! :)
asked by I NEED HELP NOW!!:) 
Chemistry
Find the limiting reagent. 2 NH4 (g) + 4 CuO (s) ==> N2(g) + 4 Cu(s) + 4H2O (g) Please explain, thank you!
asked by Jack 
college physics
A freight train has a mass of 1.7 multiplied by 107 kg. If the locomotive can exert a constant pull of 7.4 multiplied by 105 N, how long does it take to increase the speed of the train from rest to 68 km/h?
asked by rachel 
Algebra
Rewrite the division as multiplication. 84/(86)= 84*(_) Do not simplify.Type a fraction
asked by Sam 
spanish
I don't know where accent marks go in this paragraph. Dentro de unos minutos van a mostrar una pelicula increible en la television. Se llama LOS PERUANOS PREHISTORICOS, y la narra el famoso actor Ricardo Montalban. El tiene una voz magnifica, sabes. La
asked by Jennifer 
math
4 [(4x^2 + 4x)]^2 + 4(4x^2 + 4x) I got up to: 16 ( 4x^4 + 8x^3 + 5x^2 + x) Is this right and also the domain is X is all real numbers? (infinity, infinity)?
asked by Aiten 
mATH
find an equation of the line containing the giving pair of points (2,1),(78) the equation of the line in slope =intercept form is y=
asked by Anonymous 
chem
What mass of protons would be required to just neutralize the charge of 1.5 g of electrons? my teacher said .0015kg times 1e/.00091e27kg times 1pt/1e times 1.67262e27 over 1 p
asked by Sara 
Chemistry  help
This is a test for chlorides in NaOH sample. 1.0g of NaOH was dissolved in 5ml of distilled water, acidified with 4ml of dilute nitric acid and diluted to 15ml with distilled water. This mixture was poured into a test tube containing 1ml of AgNO3 solution.
asked by candy 
chemistry
1L soulution has a pH of 6 how many OH would it tak eto make it a pH7 solution?
asked by ad 
physics
plane traveling 200 km/hr with supplies for people 110 meters below. how many second before do they have to drop the supplies
asked by tom 
science
I have a container which hold 30ml of fresh water that I need to heat to boiling using electricity run through an assumed efficient resistor. Assuming an ambient temperature of 23 degrees celsius how much watt energy do I need to put into 30 ml to bring
asked by Francis 
biology
C6H12O6=180 gm to make 1M how much H2O will you need? to make a o.1M how much H2O will you need?
asked by ad 
Physics
Show that the pressure P of a gas can be written as: P= 1/3* p* v^2
asked by Beth 
Science
If you do or do not believe in electrons can you explain why you do or do not?
asked by angela 
Calculus, bobpursley!
This has to do with my last Calculus problem. I need help on it..The part I replied to after you answered the question.
asked by Leanna 
physics
An athlete executing a long jump leaves the ground at a 20° angle and travels 7.80 m. (a) What was the takeoff speed? 1._____ m/s (b) If this speed were increased by just 5.0%, how much longer would the jump be? 2.______ m
asked by jake 
Math
1/4=32x1/x+2..so far i have 8x^219x+4=0 do i use quadratic formula to solve the rest of the way?
asked by Roger 
Physics
The roadrunner leaves Pittsburgh at 7:15 in the morning at 10mph. He is headed toward Cleveland which is 131 miles away. If the coyote leaves 15 minutes later, what speed will he have to travel to get there at the same time as the road runner?
asked by Anna 
math
round 3.0083217 to the nearest hundredth
asked by gam 
chemistry h/w
Hi, this is my first lab in 2nd semester of chemistry, and im not sure about my answers in the assignment can someone give it a quick look to check them? this is my phase diagram: tinypic. com/view.php?pic=1605yev&s=7 p.s. ignore the lone red dot its
asked by Jessie 
6th grade social studies
What caused the end of the Old Kingdom? My answer is from my reading the chapters is Pharaohs losing power as nobles battled one another caused the end of the Old Kingdom. Is this correct?
asked by Reed 
economics
How does the federal government implement its fiscal policies? Given economic conditions today, do you suggest expansionary fiscal policy or contractionary fiscal policy? How would your suggestions affect production and employment? Why?
asked by uop 
english
indentifying predicate nominatives and predicate adjectives in this sentence.. Do the strawberries on this vine look ripe to you?
asked by brittany 
Algebra
Perform the indicated division 2x^27x13/x5
asked by Joe 
Algerba 2
Find H(2)if H(x)=xto the third + 1
asked by Kaitlin 
statistics
if there 60% math major are women, 15 were random. what probility 12 women were are selected and what are the mean and variance. Show ne how to work the problems
asked by landa givens 
ENGLISH
I am having a hard time finding something on our president and the Texas Assessment of Knowledge and Skills can anyone help me. Do you know if he has ever said anything about the test or if the test will be stopped.
asked by RT 
Algebra
Perform the indicated division 2x^27x13/x5
asked by Joe 
physics
An artillery shell is launched on a flat, horizontal field at an angle of α = 31.5° with respect to the horizontal and with an initial speed of v0 = 266 m/s. What is the horizontal distance covered by the shell after 9.44 s of flight?
asked by emma 
Calculus
Show that the limit for [x^2cos(1/x)]=0 as x approaches 0. How would I solve this algebraically?
asked by John 
accounting
what kind of source documents do we collect for accounting information systems?
asked by Cindy 
Math
Chad's property tax is 646.07 and is due April 20. He does not pay until Aug 29. 9.8 % Simple interest on unpaid tax. Find the penalty. can you please explain how we do this. thank you.
asked by thommini 
Algebra
I have the qustion 2x+5=7, and I've figured out that I have to subtract 5 from both sides. However, now I'm left with a plus sign that I don't know what to do with? What do I do next? HELP! THIS IS COMONG FROM A BALLERINA, AND I HATE MATH!
asked by Brenda 
physics
an object is launched horizonally from the top of a lab table that is .90 meters tall. it lands 2.75 meters away. what was the initial horizontal launch speed of the devise? the launcher is now angled 12 degrees below the horizontal. this raises the
asked by payal 
6th grade
I keep mine on a bookshelf my dad and I built ourselves. I, mine, my, I=pronouns bookshelf, dad=nouns I have to identify all of the nouns, pronouns and adjectives.
asked by Summer 
math
In a local college, 60% of the math majors are women. Fifteen math majors are chosen at random.
asked by michelle 
algebra
explain how to compare 8,563 and 8,699?
asked by javon 
Math
Writing to Explain: How can you use models to show and name the number 1,400in two different ways? Expalin.
asked by Amanda 
math
1. state the domain of f(x)= x2/x^2x6 2. given that f(x)=x^2+1 and g(x)= 3x+2, find all values of x such that f(g(x))= g(f(x)) 3. if f(x)= x^33x^22x+5 and g(x)=2, fin the value of g(f(x))
asked by Amy 
Spanish
I need help placing accent marks where they belong in this short story. !Hola, Andres! ?Como estes? Fantastico, Carmen, ?y tu? Horrible. ?Por que? El profesor Gomez me indico ayer que yo tendre que sacar por lo menos una B en el examen manana para salir
asked by Jennifer 
grammar
I need help with an appositive worksheet that my teacher gave me, but i forgot it so need trouble help!
asked by Victoria 
algebra
Can you please explain how to solve this? How far an airplane would fly in 3h if its speed is 800km/h
asked by Jessica 
math
the frist grid is not a magic square. Change some of the numbers so the sum of each row, column and diagonal is the same number. Change no more than two numbers.
asked by Aitza 
Computer Graphics
How do you make animated computer graphics, ya know, the ones that move? :S Please answer!!! xD With love, Pancake
asked by The Official Pancake Queen 
CIS 105
Here is the assignment: Use information and data obtained from at least four reliable internet sources to produce a 12 to 15slide PowerPoint® presentation about multimedia tools that aid classroom instruction. Include details about how each might
asked by Kiana 
maths
32 divides n6 and 64 does not divide n6.find the highest power of 2 dividing n+2 and n+6?
asked by chandra 
Economics
What is a quaternary industry? Answers are very helpful. xD Thank ye for the help!!! xD Loads of love from Pancake
asked by The Official Pancake Queen 
Microeconomic
Are there any books out there that can show you how to conduct an economic case analysis?
asked by Marcel 
Math
Info Sean is buying a new DVD player for 315. the store offers him an interestfree payment plan that allows him to pay in monthly installments of $25. Ques. Use n to stand for number of payments and a for the amount still owed. Write an equation for
asked by Zoe 
physics
A supply plane traveling 200 KM/hr need to drop supllys to a target 110 meters below. How many seconds before they are over the target do they have to drop the supplies?
asked by Anonymous 
Spanish
Indicate the relationships between the family members listed below Modelos: yo / mi tía Yo soy el (la) sobrino(a) de mi tía. mis abuelos / mi padre Mis abuelos son los padres de mi padre 1.mi madre / mi hijo(a) 2.mis primos / mi mamá I have the rest of
asked by christopher 
english/nursing
Why is nursing considered a professional career? I have to write a paper on professionalism and how nurses represent this.
asked by Angela 
Algebra
72+24x=288? What to do with the plus sign after I subract 24 from each side?
asked by Courtney 
math
x.y=30 and x+y=10.3 ,what is x & Y. final answer is x=5.15+1.86i and y=5.15186i, this way is by try and error (logic). but can somebody please show me how you do it by aljebra, please, thank you.
asked by layth 
Chemistry
Why do you believe electrons exist?
asked by angela 
algebra word problem
We need help!. insurance plan A is $130 plus 25% cost to the patient. Plan B is $180 plus 20% of the cost to the patient. For what amount of medical bills will plan B save the patient money. Assume the patient has over $180 in bills. We are getting stuck
asked by Team A 
math
What is the least common multiple of 32 and 45?
asked by Anonymous 
Algebra
Simplify the rational expression. (45y9xy)/(x^2y25y) I got an answer of 9y/y(x+5) but it seems to be wrong Could anyone see what I did wrong. Thank you
asked by Anonymous 
English
I really need to have these sentences checked for tomorrow. Thank you very much in advance. Comprehension test on the abridged edition of Conrad’s “Heart of Darkness” Answer briefly the following questions 1.What was the first company trading post
asked by Franco 
math
factor: 1. 6x^2y+4xy^3+10x^4y^4 2. 27m^38 3. 6n^811n^410 4. nx^2+x^29n9
asked by Amy 
English
Can you please tell me if the following sentences are possible? I really don't know how to say it in English. Thank you. 1) I do the shopping at the market every Saturday. (Should I consider it a mistake if the sentence started with "every Saturday"?) 2)
asked by Franco 
algebra
m+3n=7;n=2,0,1
asked by Anonymous 
algebra 1
Which statistical method best represents this set of data? 1,2,5,2,3,7,300,5,3,3 a.mean b.median c.mode d.standard deviation I'm pretty sure it's B or C, but they are both the same number.
asked by Lily 
trig
HOW DO YOU SOLVE THIS PROBLEM, sin theta>0,cos theta>0
asked by THOMAS 
algebra
explain why 1,734 is greater than 175?
asked by nancy 
Computer Science
Is anyone familiar with JAVA?
asked by Fayetta 
Geography
What is the second longest river in North America?
asked by Emily 
geography
Rivers bring water for ______ and ____. ?????? Fill in the blank with no options.
asked by Emily 
Physics
Brett Favre is traveling from Minneapolis to Green Bay at 40mph. Aaron Rodgers is traveling from Green Bay to Minneapolis at 50mph. If they leave at the same time, how far from Minneapolis will they meet? Green Bay and Minneapolis are 260 miles apart.
asked by Sammy 
11th grade
Having problems with proving segment relationships in paragraph proof forms in geometry.
asked by Colt 
basic chemistry
how do I find the ratio of when to solutes completely react?
asked by dee 
physics
how long do waves of frequency 7 hz and wavelength 5cm take to travel across a pool breadth 3.5 metres
asked by Chris Grant 
sociology
which research technique (survey, observation,experiment, existing sources) would you find most useful when you have been asiigned to do a study of homelessness
asked by Anonymous 
geometry
how do you find the measure of angle t if if the measure of angle t is 20 more than four times the measure of its supplement
asked by quin 
science
what happends when we burn magnesium metal
asked by rebecca 
college math
solve absolute value 2x20 absolute value=absolute value 9x+ ansolute value 15 2x20=9x+15
asked by Anonymous 
Algebra
I need to division which is (x^26x27)/(x+3) when I do it I get an answer of (x9)27/x+3 but it seems to be wrong. Can someone see what mistake I did... THANKS
asked by Joe 
Math: Inequalities
for this inequality: (x1)(x2)(x3)
asked by Amy~ 
Math
How do you write the rule for a function with the table x=0,2,4,5 y=4,6,8,9 ?
asked by Ryan 
mathfactoring
(test next period) PLEASE HELP!! x413X2+36 how DO YOU FACTOR THIS I TRIED EVERYTHING HELP!!!
asked by racheal 
chemistry
would like to know the complex ion of H2SO4
asked by kary 
MATH
Perform the indicated division 2x^27x13/x5
asked by Joe 
Science
Why do you believe electrons exist?
asked by angela 
physics
an object is launched horizonally from the top of a lab table that is .90 meters tall. it lands 2.75 meters away. what was the initial horizontal launch speed of the devise? the launcher is now angled 12 degrees below the horizontal. this raises the
asked by payal 
Math
are these right? im suppose to use like terms. 5z + 2(x + 3)  z dont solve it just simplify it. please give me a step to step process?
asked by BrXce 
physics
thank you bobpursley
asked by john 
chemistry
what is a atom??? i get confused
asked by anonymous 
Algebra
Perform the indicated division 2x^27x13/x5
asked by Joe 
college
Do you believe electrons exist and why or why not?
asked by angela 
algebra 1
i don't know how to solve the following: 3(x+2y)+$(3x+y)
asked by bianca 
math
3/4  y/2 = 1/4 solve for y
asked by Joe Joe 
science
Why is the sun classified as a G2?
asked by Jim 
statistics
60% of math major are women 15 were random and what probability that 5 are women.
asked by landa givens 
science
sedimentary rock is formed from bits and pieces of dirt, clay and sand that have been carried. a) on the earth's crust b) underground c) in rivers and streams d) over mountaintops
asked by pam 
Chemistry
Why would it be better to titrate a solution rather than just dilute it?
asked by Jane 
PHYSICS
The roadrunner leaves Pittsburgh at 7:15 in the morning at 10mph. He is headed toward Cleveland which is 131 miles away. If the coyote leaves 15 minutes later, what speed will he have to travel to get there at the same time as the road runner?
asked by Anna 
Math  Algebra
How to solve ;; xy
asked by RIMA 
Algebra
factor: 1. 6x^2y+4xy^3+10x^4y^4 2. 27m^38 3. 6n^811n^410 4. nx^2+x^29n9
asked by Anonymous 
Algebra
Perform the indicated division 2x^27x13/x5
asked by Joe 
math
in which number does 4 have the greatest value 9499 4391 2240 1944
asked by joel 
Algebra
How do you do these type problems?: 1/5+M=2/5 6x+8=32 4(1/2X+1/2)=2X+2 3Y=X (Is ^ 3 on both sides?)
asked by Laura 
Physics
two long separated friends, june and bill, spot each other in an airport terminal from a distance of 25m. they start to run towards each other. bill accerlates at a constant rate of 1.5m/s2, and june at a constant rate of 1.2m/s2. how far from junes inital
asked by Sam 
english
Make a list of expressions that are followed by the 'ing' form
asked by julia 
Physics
Suppose I measure the velocity of an object at two different times, t1 and t2. If I tell you that the uncertainty in velocity is 0.1 m/s for each point, then calculate the uncertainty in acceleration if t1 = 0.0 s and t2 = 0.01s.
asked by Sarah 
Math
1. if f(x)= 2x^2+ Ax^2 + 4x5 and f(2)=5, what is the value of A? 2. state the domain of f(x)= x2/x@x6
asked by Amy 
health
What are the ethicl considerations in obtaining a persons DNA?
asked by Allie 
Chemistry  urgent
The following is part of a procedure for a limit test for sulphates in an NaOH sample: Dissolve 3.0g of NaOH in 6ml of deionized water, adjust to pH 7 with HCl (approx.7.5ml) and dilute to 15ml with deionized water. Please explain how to perform this
asked by candy 
math
I can't find the definition and a picture example of distancetimerate of speed. Help!
asked by Julia 
science
What are the description of ecosystem of the procambarus carkii
asked by cookie 
Math
How to solve this: ((x3)(x+2))/((x1)) < 0 I don't understand since theres x1 in the denominator
asked by Amy~ 
english
i am doing a book report and i havent done one since the 5th grade and now i am in 7th HELP!!!!!!!!!!!!!!!!!!!!!!!!!
asked by samantha 
math
what is 6 to the second power
asked by Kelly 
physics
what is the charge of +11mC
asked by john 
Math
Jethro is an employee at the New Capitol T Shirt shop makes $16.00 per hour, measured in quarter hours. If he begins work at 9.30 AM, what time it will be when Jethro has earned $100.00 ? ( can you please write the steps. thankyou )
asked by thommini 
physics
what is the equation for acceleration?
asked by Anonymous 
2nd grade
i need a sentence with the word slid
asked by aaron 
Algebra
How do I solve the quadratic equation 3x^2 + 5x + 2 =0 Please explain the stepsI really don't get this
asked by Anita 
11th grade
An automobile with an initial speed of 4.56m/s accelerates uniformly at the rate of 2.4m/s2. Find the final speed of the car after 4.4 s. Answer in units of m/s.
asked by Taylor 
6th grade
What is the simple and complex for this sentence. Making a bad grade on such an easy spelling test is such an embarrassment.
asked by Ashleigh 
math
y/12  2/3 = 1/4
asked by Joe Joe 
writing
what does it mean to " wright a tale that might have grown from it"?
asked by evil 
Spelling
What are blending words?
asked by Anthony 
Math
How is 3x2 different from 3 to the 2nd power ?
asked by Rose 
math
how do you model 624 without using hundreds?
asked by Anonymous 
spelling
I need a sentence with the word squib
asked by Kiyanna 
science
please can you write a summary of maintaining an enviroment through conservation.
asked by Jolomi skinn 
science
A MODEL OF A RESPIRATORY SYSTEM AND HOW U WENT ABOUT IT AND THE METHODS OR DESCRIPTINONS WITH THYE USE OF CORKS BALLONS SYTRAW AND OTHER THINGS.
asked by Jolomi skinn 
Science
What are the three classification of rock?
asked by Jim 
math
19/15 and y  intercept is 04
asked by Anonymous 
science
how can you tell the element of another
asked by yuku 
5th grade
write a real word problem where you would multipy 120 and 75
asked by kori 
Calculus, need help again...
If the function f is defined by f(x)=x^22x, find limit h>0 (f(3+h)(f(3h))/2h
asked by Leanna 
math
find the other endpoint (x,11) of a segment given the endpoint (5,4) and a distance of 17.
asked by confused 
math
94
asked by davis 
math
4/5  2/y = 2/15
asked by Joe Joe 
maths
how much greater is one quarter than one half
asked by packman 
English
I want to ride. What parts of speech are to ride in this sentence.
asked by Keith 
math
soltion for 3( 6)+(4)(2)
asked by davis 
I.C.T
what does RAM stad for????
asked by chelsea 
math
(6)2 (4)2
asked by davis 
Math
what is the first step of figuring out what 5=8+5f?
asked by Erika 
3 grade
explain why 24,005 is greater than 8,999.
asked by Anonymous 
math fraction
11/12x 40
asked by Anonymous 
math
what are the properties of a polygon
asked by cherrio 
Math
k+40=6
asked by Anonymous 
Math (Algebra Grade 8)
2x+5=7?
asked by Erika