Questions Asked on
November 10, 2010

Social Studies
Hi Jiskha!! I have been researching the Civil war and wanted to know it you can add to this. No this is not my work it is essays and summary's i found on the computer, this is what I found: Summary of the Civil War: Fought 18611865, the American Civil War
asked by Erin 
PHYSICS
A 27.0 kg child on a 3.00 m long swing is released from rest when the swing supports make an angle of 31.0° with the vertical. Neglecting friction, find the child's speed at the lowest position.
asked by clueless 
chemistry
What is the net ionic equation for the reaction of formic acid, HCOOH, with NH3? A. H+(aq) + NH3(aq) → NH4+(aq) B. H+(aq) + OH–(aq) → H2O(l) C. HCOOH(aq) + NH3(aq) → NH4+(aq) + HCOO–(aq) D. HCOO–(aq) + H+(aq) + NH3(aq) → NH4HCOO(aq) E.
asked by Jake 
chemistry
A 100.0 ml sample of 0.300 M NaOH is mixed with a 100.0 ml sample of 0.300 M HNO3 in a coffee cup calorimeter. Both solutions were initially at 35.0 degrees celcius; the temperature of the resulting solution was recorded at 37.0 degrees celcius. Determine
asked by Kristy 
chemistry
Determine the theoretical yield of C when each of the following amounts of A and B are allowed to react in the generic reaction: A+2B>3C 1) 1mol A; 1 mole B 2) 1mole A; 3 mole B 3) 2mole A; 2 mole B 4) 32mole A; 68 mole B
asked by rachel 
Chemistry
Which formula represents a molecular compound? (1) Kr 3) N2O4 (2) LiOH (4) NaI How do you know?
asked by danny123 
Chemistry
Why do magnesium, phosphorus, and zinc exhibit slightly higher first ionization energies than the general trend within each of their periods?
asked by David 
CHEMISTRY..please help..thanks
Calculate the new molarity if each of the following dilutions is made. Assume the volumes are additive. (a) 52.3 mL of water is added to 27.1 mL of 0.124 M KOH solution (b) 110. mL of water is added to 54.2 mL of 0.808 M NaCl solution ((please show work,
asked by Jasmin 
Chemistry
A solution of I2 was standardized with ascorbic acid. Using a .1000 g sample of pure ascorbic acid, 25.32 mL of I2 were required to reach the starch end point. A. What is the molarity of the iodine solution? B. What is the titer of the iodine solution?
asked by Candy 
chemistry
the value for the Ksp of silver chromate is reported to be 1.1 x 10^12. in a saturated solution of silver chromate, the silver ion concentration is found to be 2.5 x 10^4M. what must the chromate ion concentration be?
asked by Rachel 
Physics
A 2.0cm thich bar of soap is floating on a water surface so that 1.5 cm of the bar is under water. Bath oil of specific gravity 0.60 is poured into the water and floats on top of it. What is the depth of the oil layer when the top of the soap is just
asked by Daniel 
College Chemistry
please help! You are given an unknown, colorless, solution that may contain only one salt from the following set: NaA, NaB, NaC. In solution each salt dissociates completely into the Na+ ion and the anion A, B, or C, whose properties are A is green, B
asked by Marcus 
physics
A student (m = 68 kg) falls freely from rest and strikes the ground. During the collision with the ground, he comes to rest in a time of 0.04 s. The average force exerted on him by the ground is +18000 N, where the upward direction is taken to be the
asked by sean 
Chemistry ( stoichiometry )
How many grams of iron can be made from 16.5g of Fe2O3 by the following equation: Fe2O3 + 3 H2 > 2 Fe + 3 H2O.
asked by Sevi 
Math: Calculus
The velocity of a car is f(t)=7t meters/second. Use a graph of f(t) to find the exact distance traveled by the car, in meters, from t = 0 to t = 10 seconds
asked by REALLY NEED HELP!!!! 
physics
A 500 g steel block rotates on a steel table while attached to a 2.0mlong massless rod. Compressed air fed through the rod is ejected from a Inozzle on the back of the block, exerting a thrust force of 3.5 N. The nozzle is 70^\circ from the radial line,
asked by Kathleen 
College Chemistry
A buffer solution contains 0.120M acetic acid and 0.150M sodium acetate. a. How many moles of acetic acid and sodium acetate are present in 50.0 ml of solution? b. if we add 5.55 mL of 0.092M NaOH to the solution in part (a) how many moles of acetic acid ,
asked by Elizabeth 
chemistry
A biology experiment requires the preparation of a water bath at 37.0°C (body temperature). The temperature of the cold tap water is 22.0°C, and the temperature of the hot tap water is 55.0°C. If a student starts with 70.0 g of cold water, what mass of
asked by Anonymous 
Chemistry
“1.25 g of crushed limestone was added to 50.0 cm3 of 1.00 mol dm3 hydrochloric acid (an excess). The mixture was left until all bubbling stopped and was then made up carefully to 250 cm3 with pure water. A 25.0 cm3 sample of this was pipetted into a
asked by Sophia 
Chem
A sample of gas has a volume of 8.00 L at 20.0 degrees celcius and 700. torr. What will be it's volume at STP?
asked by Jeni 
Chemistry
A 100.0 ml sample of 0.300 M NaOH is mixed with a 100.0 ml sample of 0.300 M HNO3 in a coffee cup calorimeter. Both solutions were initially at 35.0 degrees celcius; the temperature of the resulting solution was recorded at 37.0 degrees celcius. Determine
asked by Kristy 
chem
How many moles of O are in 13.0 mol Fe(NO3)3? can you please find this using dymensional analysis and show me how you worked it? Thans
asked by sara 
PHYSICS
a 0.1 kg mass is suspended at rest from a spring near the Earth's surface, the distance that the spring is stretched is measured to be 1.0 cm. What is the spring constant of the spring (remember the MKS units)? A mass of 2 kg is attached to a spring with
asked by PHYSICIS HELP ASAP 
Chemistry
A solution of I2 was standardized with ascorbic acid. Using a .1000 g sample of pure ascorbic acid, 25.32 mL of I2 were required to reach the starch end point. A. What is the molarity of the iodine solution? B. What is the titer of the iodine solution?
asked by Candy 
8th grade
Suppose that the veterans of the Korean War and the veterans of WWII are mutually exclusive. Together, the veterans of the Korean War and the veterans of WWII, account for X% of the veterans in the United States in 2009. The number of veterans of the
asked by Anonymous 
Physics
A ski gondola is connected to the top of a hill by a steel cable of length 620 m and diameter 1.5 cm. As the gondola comes to the end of its run, it bumps into the terminal and sends a wave pulse along the cable. It is observed that it took 14 s for the
asked by Tim 
physics
a 0.1 kg mass is suspended at rest from a spring near the Earth's surface, the distance that the spring is stretched is measured to be 1.0 cm. What is the spring constant of the spring (remember the MKS units)? A mass of 2 kg is attached to a spring with
asked by derek 
AP physics
A 66 kg diver steps off a 13 m tower and drops, from rest, straight down into the water. If he comes to rest 4.4 m beneath the surface, determine the average resistance force exerted on him by the water.
asked by kaitlyn 
chemistry
What total volume (in lhter at 600 C and 1atm.) could be formed by the decomposition of 16g of NH4NO3 ?
asked by Ajay Gope 
math
a pronghorn antelope can travel 105 miles in three hours.if it continuedntraveling at the same speed,how far could a pronghorntravel in 11 hours
asked by Anonymous 
Physics
A 0.145 kg baseball pitched at 37.5 m/s is hit on a horizontal line drive straight back toward the pitcher at 48.0 m/s. If the contact time between bat and ball is 3.50×10^−3 s, calculate the average force between the ball and bat during contact.
asked by Linda 
math
kyle had 36 books in hislocker. some were library books, some were textbooks, and the rest were telophone books. the number of library books and textbooks combined equal twice the number of textbooks. the number of textbooks and telephone books combined
asked by Katherine 
physics
Two loudspeakers, A and B, are driven by the same amplifier and emit sinusoidal waves in phase. The frequency of the waves emitted by each speaker is 172 \rm Hz. You are 8.00 \rm m from speaker A. Take the speed of sound in air to be 344 \rm m/s. What is
asked by sarah 
chemistry
which of the folllowing species is not isoelctric with any of the others? a)V3+ b)Ca2+ c)Ar d)CL e)S2
asked by lavonne 
Chemistry
Ethane (C2H6) burns with oxygen to produce carbon dioxide and water. A sample of ethane was burned completely and the water that formed had a mass of 1.61g. How much ethane, in moles and in grams, was in the sample?
asked by Shabear 
ap physics
Starting from rest, a 10.2 kg block slides 2.90 m down a frictionless ramp (inclined at 30.0° from the floor) to the bottom. The block then slides an additional 4.80 m along the floor before coming to a stop. Determine the coefficient of kinetic friction
asked by clueless 
physics
During a transatlantic flight, you drink a bottle of water and tightly close its lid again. Back on the ground during taxiing to the terminal, you notice that the thin plastic bottle is crushed, and you eyeball it to be only about 70 percent of its
asked by Maree 
Chemistry
What mass of benzene(C6H6, molar mass=78.11g/mol) is required to produce 1500 kJ of heat according to the following reaction? 2C6H6(l)+15O2(g) > 12CO2(g) +6H2O(g) delta H= 6278 I must have tried this so many times. Can you please show me how this is
asked by Nikky 
Chemistry
If the pH of grapefruit is 3 and the pH of beer is 5, how many times more acidic is the grapefruit juice than the beer? According to the logarithmic scale
asked by Ash 
ENGLISH
An angel, robed in spotless white, Bent down and kissed the sleeping Night. Night woke to blush; the sprite was gone. Men saw the blush and called it Dawn. Paul Laurence Dunbar I have a few questions on this poem which I do not understand and would like if
asked by Teressa 
Physics
You are the design engineer in charge of the crashworthiness of new automobile models. Cars are tested by smashing them into fixed, massive barriers at 51 km/h (32 mph). A new model of mass 1900 kg takes 0.18 s from the time of impact until it is brought
asked by Linda 
Chemistry
Ethane (C2H6) burns with oxygen to produce carbon dioxide and water. A sample of ethane was burned completely and the water that formed had a mass of 1.61g. How much ethane, in moles and in grams, was in the sample?
asked by Shabear 
chemistry
What total volume (in lhter at 600 C and 1atm.) could be formed by the decomposition of 16g of NH4NO3 ?
asked by Ajay Gope 
College Algebra
The population of the Earth is approximately 6 billion people and is growing at an annual rate of 1.9%. Assuming a Malthusian growth model, find the world population in 45 years. (Round your answer to one decimal place.)
asked by Lexi 
College Physics
A child swings a yoyo of weight mg in a horizontal circle so that the cord makes an angle of 30 degrees with the vertical. Find the centripetal acceleration.
asked by Brianna 
Physical Chemistry
Calculate the standard reaction Gibbs energy of the oxidation of ammonia to nitric oxide according to the equation 4 NH3g) + 5O2(g) → 4 No(g) + 6 H2O(g).
asked by KC 
Physics
Eight books, each 4.1 cm thick with mass 1.8 kg, lie flat on a table. How much work is required to stack them one on top of another?
asked by Linda 
Physics
Calculate the force exerted on a rocket, given that the propelling gases are expelled at a rate of 1800 kg/s with a speed of 3.8×104 m/s (at the moment of takeoff).
asked by Linda 
chemistry
What is the molarity of a potassium hydroxide solution if 38.65 mL of the KOH solution is required to titrate 25.84 mL of 0.1982 M hydrochloric acid solution?
asked by Anonymous 
accounting
herman company received proceeds of $188,500 on 10year, 8% bonds issued on january 1, 2009. the bonds had a face value of $200,000, pay interest semiannually on june 30 and december 31, and have a call price of 101. herman uses the straightline method
asked by debbie 
business math
What is the probability that a 8digit phone number contains at least one 5? (Repetition of numbers and lead zero are allowed).
asked by cmb 
Science
How many atoms of aluminum can be produced by the decomposition of 47.1 g of Al2O3? (Hint: Write and balance the equation first.) The products are oxygen gas and aluminum metal (Al) A) 1.11 X 10^24 Al atoms B) None of these C) 1.39 X 10^23 Al atoms D) 5.56
asked by Tim 
chem
for a combination reaction, it was calculated that 7.59g of A would exactly react with 4.88g of B. these amounts were reacted, and 9.04g of product was isolated. what was the percentage yield of reaction??
asked by julia 
Chemistry
Discuss how to prepare 250.0 ml of an ammoniumammonia buffer (pkb = 4.70), ph = 9 and total concentration of 0.05M using 0.10 M ammonium chloride and 0.10M aqueous ammonia
asked by Elizabeth 
chemistry
I did a lab using an electrochemical cell to establish a relationship between cell potential and concentration. I derived two equations from lines of best fit. One is Cell potential of Ag vs. Cu Concentration: y = 0.04520x+0.5515. The other is cell
asked by Morgan 
To Cally, linie, mutze, or whoever 
You've been posting under a bunch of different names tonight, including one that borders on the unacceptable. Your posts are currently being blocked to give you time to think of one screen name that IS acceptable, and you can try again tomorrow. Thanks for
asked by Writeacher 
College Chemistry
Substances A, B, and C can all act as oxidizing agents. In solution, A is green, B is yellow, and C is red. In the reactions in which they participate, they are reduced to A, B, and C ions, all of which are colorless. When a solution of C is mixed with
asked by Lisa 
physics
A person is riding a bicycle, the wheels of a bicycle have an angular velocity of +20.5 rad/s. Then, the brakes are applied. In coming to rest, each wheel makes an angular displacement of +12.0 revolutions. (a) How much time does it take for the bike to
asked by sean 
calculus
Boat A leaves the dock at 12pm heading due South at a constant speed of 20 km/h. Meanwhile, at 12pm Boat B, a pirate ship, is 15 km due West of the dock where boat A started, and is sailing due East at a constant speed of 15 km/h. If the pirates get within
asked by Anya 
Physics
A 2.0cm thich bar of soap is floating on a water surface so that 1.5 cm of the bar is under water. Bath oil of specific gravity 0.60 is poured into the water and floats on top of it. What is the depth of the oil layer when the top of the soap is just
asked by Daniel 
physical chemistry
Calculate the equilibrium constant (K) for the ammonia synthesis reaction at 25°C and show how K is related to the partial pressures of the species at equilibrium. Consider that the overall pressure is low enough for the gases to be treated as perfect.
asked by KC 
math 5TH GRADE
This number of tiles will make a rectangle that is 6 tiles wide.
asked by arjel 
chemistry
Determine the chloride ion concentration in a solution containing 50.0 g MgCl2 dissolved in 1500 mL of solution. a. 0.350 M b. 0.700 M c. 1.40 M d. 3.17 M e. 6.34 M
asked by princess 
math
"a 6 ft adult has a shadow of 3.6 ft. long. How long is the shadow of a 5ft child standing next to the adult"
asked by lb 
Physics
A 600kg weather ballon is designed to lift a 4000kg package. What volume should the ballon have after being inflated with helium at standard temperature and pressure so the total load can be lifted up? The problem asks for volume. Take it a step
asked by Daniel 
Physics
A 23 g bullet traveling 220 m/s penetrates a 4.2 kg block of wood and emerges cleanly at 140 m/s. If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges?
asked by Linda 
A thanks to Writeacher
THANK YOU lol thank you very much i now understand wat shes sayin myteacher don't really get it either lol wen i asked him in class so thank you very very much
asked by Angel 
physics
A girl 36 kg occupies a seat of a swing that this subject by two chains 20 m in length each. If someone drops the girl from an 8 m position below the highest of the swing. What strength exercises it on the girl when she passes through the point lower?
asked by paul 
Physics
Suppose you are standing in the aisle of a bus traveling along a straight road at 100km/h, and you hold a pencil still above your head. Then relative to the bus, the velocity of the pencil is 0km/h, and relative to the road, the pencil has a horizontal
asked by Anne 
Chemistry
How do I predict whether the equilibrium lies to the right or left of an Acidbase equation? O[2](aq) + H2O(l) OH[] + OH[]
asked by Ana 
Physics
The longer a straw, the harder it is to drink from. If the air pressure is 93300 Pa, and if you could create a perfect vacuum in your mouth, what is the maximum length of a straw that you could still drink from? Density of water: 1000kg/m3. Ignore
asked by Maree 
Physics  Mechanics and Ocsillatory Motion
An 8.70 kg block slides with an initial speed of 1.56 m/s up a ramp inclined at an angle of 28.4 with the horizontal. The coefficient of kinetic friction between the block and the ramp is 0.62. Use energy conservation to find the distance the block slides
asked by Sara 
chem
so i posted this question yesturday and got some help. which is the stuff below. can you look at the last thing i said which was the answer i got by doing what DrBob222 said to do and tell me if its correct.(the question is the first section) thanks chem 
asked by hannah 
Chemistry
I keep calculating the square root of 3RT/M, and am not worrying about the temperature. I keep using 238 and 235 as my M when I do calculate it for both isotopes. Then I end up getting 1.00 as my final answer. That can't possibly be correct, can it? The
asked by Jess 
Chemistry
Aluminum and chlorine gas react together to make Aluminum chloride. What is the limiting reactant if 20.0g of Al and 30.0g of Cl2 are used?how much aluminum chloride was formed?
asked by Linie 
physics
A woman stands on a scale in a moving elevator. Her mass is 71.0 kg, and the combined mass of the elevator and scale is an additional 815 kg. Starting from rest, the elevator accelerates upward. During the acceleration, the hoisting cable applies a force
asked by megan 
MATH
The ratio of the perimeter of triangle KLM to the perimeter of triangle PQR is 5/3 and LM is 4 less than twice QR. Find LM and QR, if Triangle KLM~Triangle PQR. Can someone solve this in ratio and proportion method? Thanks.
asked by Kevin Loed 
physics
A delivery truck with a mass of 1700 kg is stopped in the street w/o its brakes on, when a small car hits it from behind. The care has a mass of 650 kg, and is traveling at 3.7m/s immediately before it hits the truck. Both the car and the truck have good
asked by aok 
AP physics
A 2.10x10^3 kg car starts from rest at the top of a 5.8 m long driveway that is sloped at 25° with the horizontal. If an average friction force of 4.0X10^3 N impedes the motion, find the speed of the car at the bottom of the driveway. im using the
asked by RNH 
Chemistry
What mass of sodium chloride is produced when 10.0g of sodium is reacted with 20.0g of chlorine?
asked by Cally 
College Physics
An 8.67kg block slides with an initial speed of 1.50 m/s down a ramp inclined at an angle of 27.1° with the horizontal. The coefficient of kinetic friction between the block and the ramp is 0.65. Use energy conservation to find the distance the block
asked by Sharon 
Math
Write the slope intercept equation for the line that passes through (14,2) and is perpendicular to 7x10y=18
asked by Lisa 
physics
A girl 36 kg occupies a seat of a swing that this subject by two chains 20 m in length each. If someone drops the girl from an 8 m position below the highest of the swing. What strength exercises it on the girl when she passes through the point lower?
asked by paul 
Chemistry
What volume of 0.200 N H2SO4 is required to neutralize a solution containing 8.00 equivalents of NaOH?
asked by Joe 
physics
Frosty the Snowman was a jolly happy soul of mass 85 kg. If his initial temperature was 19C , how much heat did he absorb till he was at 25C ?
asked by Maree 
Calculus 2
An underground tank full of water has the following shape: Hemisphere  5 m radius. at the bottom Cylinder  radius 5 m and height 10m in the middle Circular cone radius 5 m and height 4 m at the top The top of the tank is 2 m below the ground surface and
asked by Amy 
physics...again :/
A skier starts from rest at the top of a hill that is inclined at 9.9° with the horizontal. The hillside is 160 m long, and the coefficient of friction between snow and skis is 0.0750. At the bottom of the hill, the snow is level and the coefficient of
asked by clueless 
hypothesis testing and CI
A hypothesis test for a population mean is to be performed at the 5% level of significance. The population standard deviation is known. The hypotheses are H0: ƒÊ = 80 Ha: ƒÊ ‚ 80. A 95% confidence interval for ƒÊ is also constructed. True or
asked by lubna 
chemistry
The poison strychnine is a weakly basic compound with Kb = 1.8 „e 10ƒ{6. What is the pH of a 0.058 M solution of strychnine? a. 3.49 b. 7.30 c. 8.26 d. 10.51 e. 12.76
asked by miller 
English (Romeo and Juliet)
Where juliet says: "O romeo, romeo!Wherefore art thou Romeo? Deny thy father and refuse thy name; Or if thou wilt not,be sworn my love, And ill no longer be a Capulet" i don't understand what she is sayin and i don't understand what she means
asked by Angel 
geometry
You have isosceles triangle WXY and segment WZ is the perpendicular bisector of segment XY. You have to prove triangle WXY isosceles in only three steps using the theorem: If a point is on the perpendicular bisector of a segment, then it is equidistant
asked by Michele 
College Chemistry
I DO NOT understand the following! Please HELP :) 1st Part Substances A, B, and C can all act as oxidizing agents. In solution, A is green, B is yellow, and C is red. In the reactions in which they participate, they are reduced to A, B, and C ions, all
asked by Lisa 
chemistry
How much boiling water would you need in order to raise the bath to body temperature (about 37\rm {}^\circ C)? Assume that no heat is transferred to the surrounding environment.
asked by John 
british literature
compare and contrast the characterizations of the wanderer and beowulf? i need to know about the characters not the poems.. i been this question for like weeks so and help would be great!! Thank You!!
asked by whit 
Chemistry
For each reaction, complete and balance the equation and give the net ionic equation. a) KOH(aq)+ZnCl2(aq)> KCl2+ZnOH The second half of the equation is how i had done on the exam but he said its not balanced. How do I balance this? How would it look. I
asked by Jess 
english
What literary tradition immediately preceded the novel tradition? short story? romance? fable? i think its a fable?
asked by danny 
college chem
Write a chemical equation to express the fact that, at 0 °C, ice melts by absorbing 334 J of heat per gram of ice.
asked by Brittney 
Physics II Honors
A 23.0 kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 79.0 N and is directed at an angle of 30.0° above the horizontal. Determine the coefficient of kinetic friction.
asked by Anonymous 
chemistry
An aqueous solution of phosphoric acid, H3PO4, contains 285 g H3PO4 in 400 mL solution, and has a density of 1.35 g/mL. Calculate a. the weight % H3PO4 in this solution. b. the concentration in mol/L of this solution
asked by princess 
Physics last question
A charge of 23.6 is located at (4.37 m, 5.94 m), and a charge of 10.7 is located at (4.53 m, 6.77 m). What charge must be located at (2.19 m, 2.91 m) if the electric potential is to be zero at the origin?
asked by rudi 
physics
A 2.10 103 kg car starts from rest at the top of a 5.8 m long driveway that is sloped at 25° with the horizontal. If an average friction force of 4.0 103 N impedes the motion, find the speed of the car at the bottom of the driveway.
asked by RNH 
Calc 3
Find the parametric equations for the tangent line to the curve with the given parametric equations at specified point. x= e^t y=te^t z=te^(t^2) (1,0,0)
asked by Rebecca 
British Literature
"O hear a pensive prisoner prayer" has example of A)an allusion B)parallelism C)alliteration D)internal rhyme i think is C.. just not for sure!
asked by whit 
biology (multiple choice!)
Evolutionary adaptations that help diverse animals exchange matter with the environment include a. gastrovascular activity, twolayered body, and torpedo shape. b. large volume, long tubular body, and wings. c. complex internal structures, small size, and
asked by Sarah 
British literature
compare and contrast the themes and strutures of Edmunds Spenser sonneet to william shakespeare sonnet 18?? Help PLZ!!! thank you!!
asked by whit 
Spanish 1
51. "¿Puedes jugar fútbol?" "_______." a. Sí, quires b. Sí, puedes c. No, no puedo d. No, no necesito jugar C? 52. "¿Te gustaría ir conmigo?" "______." a. !Claro que sí! b. El otoño c. De nada d. Hasta luego A? 53. Beatriz y yo _____ a la
asked by mysterychicken 
Math: Calculus
Consider the function f(x) whose second derivative is f''(x) = 8x + 4sin(x). If f(0) = 2 and f'(0) = 2, what is f(x)? I got... f'(x)=4(x^2  cos[x]) and f(x)=(4(x^3  3sin[x]))/3 but it's wrong. Can anyone explain to me how to solve this.
asked by REALLY NEED HELP!!!! 
10th grade
its werid finiding 8x  13 and 7x + 11 but idk if i should add and equl to 360 its paralleograms and finding x its a triangle please help
asked by luis 
college chemistry
The rate of the following reaction: 2 NO2 2 NO + O2, is characterized by the rate constant k = 0.775 L·mol1s1. What is the halflife for this reaction at the same conditions when the initial concentrations are 0.0115 M? (Round your answer to 3
asked by sparkle 
physics
Two particles of mass m1 = 1.0 kg and m2 = 2.6 kg are traveling with velocities v1 = 4.9, and v2 = 2.5 as shown in the figure below. What is the total momentum of this system? Be sure to give the magnitude and direction of the momentum. magnitude 1 kg ·
asked by cody 
12th grade Trig
What are the period and 2 consecutive asymptotes? 1. y= 3tan pi x 2. y= 2 sec 4 x 3.y= csc x/3 4.y = 3cot pi x/3
asked by Rose 
Physics
Suppose you are drifting on a lake in a boat that measures 1 m high, 1 m wide, and 3 m long. The water level reaches halfway up the boat. 1. What is the volume of water that is displaced by the boat? (density of water = 1000 kg/m^3 or 1.00 g/cm^3). 2. What
asked by Anonymous 
Math  Calculus 2
An underground tank full of water has the following shape: Hemisphere  5 m radius. at the bottom Cylinder  radius 5 m and height 10m in the middle Circular cone radius 5 m and height 4 m at the top The top of the tank is 2 m below the ground surface and
asked by Amy 
Spanish 1
54. ¿Cuándo vas al centro comercial? a. seis de febrero b. las dos c. el jueves d. son las cuatros Not sure... 56. Me gustaría jugar tenis ____ las clases hoy. a. por b. después c. después de d. los fines de semana C? 57. Mañana vamos ______ parque
asked by mysterychicken 
physics
A massive steel cable drags a 15.0 kg block across a horizontal, frictionless surface. A 85.0 N force applied to the cable causes the block to reach a speed of 4.10 m/s in 1.90 s.
asked by mauz 
hypothesis testing by mean levels
hi everyone... i have this homework.. i tried to solve it... can anyone check if it's right or not, please?? Question: The maximum acceptable level of a certain toxic chemical in vegetables has been set at 0.2 parts per million (ppm). A consumer health
asked by lubna 
chemistry hw, please help
If you titrate 12.6 mL of an unknown monoprotic (one H) acid with 13.0 mL of 0.140 M NaOH, what will be the concentration of the acid? If you add 23.5g of NaCl to 1.2 kg of water, what will be the boiling point and the freezing point of the new solution?
asked by Jasmin 
Physics
1. Freefall: A ball is thrown vertically upward. What are its velocity and acceleration when it reaches its maximum altitude? What is its acceleration just before it hits the ground?
asked by Aaron 
7th grade social studies.
hi my name is sadaf. i have problems studying and understanding social studies. i don't know what to do my grades are too low. can you please give me some tips and ideas on how i can work on it?
asked by anynomous 
Calc 3
Find the parametric equations for the tangent line to the curve with the given parametric equations at specified point. x= e^t y=te^t z=te^(t^2) (1,0,0)
asked by Rebecca 
physics
YOU PUSH A REFRIGERATOR WIT HA FORCE OF 50N AND IT MOVES 3 METERS ACROSS THE FLOOR
asked by MARIAH 
Physics
You have probably seen films of astronauts floating weightless in orbiting satellites. People often get the idea that the astronauts are weightless because they are so far from the gravity of the earth. Let us see if that explanation is correct. Typically,
asked by Carmen 
grade 12 chem
use the activity series to predict if a reaction will occur, complete and and balance your equation. Zn(s)+ Cu(NO3)2
asked by sailor 
math
I need help with helping my 11 year old daughter with her homework. She needs to create a easily identifiable 3 sided polygon which would be the perfectly productive polygon. HELP PLEASE!!
asked by Desiree 
math
If I were taking a trip and it took me three hours to get there and 5 hours to get back, what would be speed have been on the way there if I traveled at 16k/h?
asked by Francine 
math
Terms of sequences 15,22,31,42,55 find next 3 terms and the formula also for the sequence
asked by sara 
chemistry
In a buffer solution, if [Aƒ{] < [HA], which of the following must be true? a. pH < pKa b. pH = pKa c. pH > pKa d. pH < 7.00 e. pH > 7.00
asked by miller 
social studies
1. what was the incan capital called? 2. what was the Incan emperor called? 3. who built the cahokia city?
asked by 7th grade 
social studies
Some analysts maintain that the United States is poorly served by a Congress that is often beset by inaction and localism. Supporters of the Congress maintain that the institution is a superior deliberative and representative institution. Which argument is
asked by Anonymous 
French
Can you check this thanks. Un Voyage Directions: Faites une question en utilisant l'inversion. 1. Robert a fait un voyage à Avignon l'année dernière. (que) Answer: Estce que un voyage Robert a fait? 2. Il est allé à l'aéroport avec ses copains.
asked by miami 
chemistry
suppose 10 g of sulfur is reacted with 48 g of fluorine gas to make SF6, and after the reaction is complete, the temperature in the flask is 125 C. Find the partial pressure of SF6 in the flask and the mole fraction of SF6 in the 6L flack after the
asked by kevin 
World Geograpghy
Fill in the blank... a. The alphabet we use today is based on the one conceived by the ancient ______ of the eastern Mediterranean.
asked by Austin 
english
The novel followed the drama as a major form in England. true?
asked by danny 
Statistics
Variables in the dataset dietstudy Variable name Variable description id Patient ID Basetg Pre measurement lev Final tg Post Measur. Level Base wt pre measure level Final wt Post measure level A researches has collected data to investigate a research
asked by veeone 
science
what does the statement mean "the properties of salts are diferent from the properties of the elements that go into making them" mean
asked by Anonymous 
English
1. Do not make repairs on the brakes yourself. 2.Maura said that the word lassco comes from a Spanish word that means "snare". 3. The Cherokee Phoenix was the first newspaper printed in an American Indian language. Identify the prepositional phrase and
asked by Amy 
Physics
A mass of 1.66 kg stretches a vertical spring 0.312 m. If the spring is stretched an additional 0.136 m and released, how long does it take to reach the (new) equilibrium position again?
asked by Tim 
Physical Chemistry
A 100 amino acid folded protein (F) is in equilibrium with it’s unfolded (U) (or denatured) form. Let ΔrH(std) =+347 kJ mol1 and ΔrS(std) =1010 J K1 mol1 for the equilibrium (F U) at 25℃. (a) Calculate the concentration of protein in each form if
asked by KC 
Science
In our 7th grade Commprehensive science class we are learning about heat. So our project is about how animals adaptions for thermoregulation. And we choose the hooded Seal. We have found three adaptions sso far but the requirements are five. So far we have
asked by Kayla 
Physics
A 3600 kg open railroad car coasts along with a constant speed of 11.0 m/s on a level track. Snow begins to fall vertically and fills the car at a rate of 3.70 kg/min. Ignoring friction with the tracks, what is the speed of the car after 80.0 min?
asked by Linda 
Chemistry help
Cupper (II) sulfate reacts with hydrogen iodide to produce copper iodide, sulfuric acid, and iodine gas. If 10.4g of copper (II) sulfate is used, calculate the number of grams of HI needed and the number of grams of each product produced.
asked by Mütze 
3rd grade
There are 32 more apples than oranges at a fruit stand. How many apples and oranges could there be?
asked by JT 
biology
i would like to know if you could help me figure out the blanks of this question. The pH scale ranges from __ to __.Pure water is ___. An acid is ______ 7 and a base is __________ 7. If you could let me know that would be great thanks
asked by virginia 
math
a soccer player scored 41 goal in 84 games.express the payers scoring rat as a unit rte rounded to the nearest thousandth
asked by danashia 
english
what does this quote mean? “You can’t go on with just three music companies organizing and distributing 85 percent of the music in the world”.
asked by Anonymous 
english
Mikes car needs a new muffler and new brakes. (Which word needs an aposterphy?)
asked by ricky 
Math
In the triangle ABC, angle ABC is x, angle BCA is x+40, and angle CAB is 2x. What is the measure of the largest angle (in degrees) ?
asked by sadf 
english
write an essay about failures are the stepping stones to success
asked by suresh 
science
what is concentration please say it in an easy to understand answer thank you!
asked by help 
English
1. The flower shop is on the restaurant. 2. The flowe shop is above the restaurant. 3. The flower shop is over the restaurant. (Thank you. Do we have to use only 'above' when on the first floor, there is a restaurant, and there is a flower shop on the
asked by rfvv 
math
sketch the curve using the domain, intercepts, symmetry, asymptotes, local max and min and concavity. y= x /(√(x^2)  1)
asked by Sasha 
algebra
The perimeter of a rectangle is 96m.The length is 6m more than twice the width. Find the dimension.
asked by Kayla 
CHEMISTRY..please help..thanks
If you add 23.5g of NaCl to 1.2 kg of water, what will be the boiling point and the freezing point of the new solution? (Kf=1.86, Kb=0.52) (Please show work, I appreciate everything)
asked by Jasmin 
windows xp command line
create a batch subdirectory on the homework disk and any batch files frome the root directory into the batch subdirectory
asked by divyesh 
physics... last one
Two blocks, A and B (with mass 50 kg and 100 kg, respectively), are connected by a string, as shown in Figure P5.63. The pulley is frictionless and of negligible mass. The coefficient of kinetic friction between block A and the incline is µk = 0.23.
asked by clueless 
Math
Can someone please please help me understand how to go about solving this? (not really answering it, but actually explaining itpretty please?) "The zipper and the safety pin were invented in the 14th century. The safety pin was invented 44 years before
asked by Nikki 
chemistry
25 ml HCl x 1L/1000mL x .200HCl/1L = .005 mol HCl. Using the balanced equation from this, how many moles of NaOh will you need to completely neutralize the HCl?
asked by Zac 
physics
A rocketpowered hockey puck has a thrust of 4.70 N and a total mass of 2.40 kg. It is released from rest on a frictionless table, 4.80 m from the edge of a 3.00 m drop. The front of the rocket is pointed directly toward the edge. How far does the puck
asked by yeah 
ALGEBRA PLEASE HELP!!
Hello. Three quick questions that I have worked on just need confirmation. 1. I need to find the intercepts and then use them to graph the equation. 2y6=2x; I have x = 0 for y  intercept; 2y6=2(0); 2y6 = 0; 2y = 6; y = 3. I set y at 0 also. 2 (0)  6 =
asked by Amy 
physics
A delivery truck with a mass of 1700 kg is stopped in the street w/o its brakes on, when a small car hits it from behind. The car has a mass of 650 kg, and is traveling at 3.7m/s immediately before it hits the truck. Both the car and the truck have good
asked by aok 
Physical Chemistry
The equilibrium constant for a reaction was measured at several temperatures and the data plotted at right. The slope and yintercept of the plot are +3.25 kK and 4.04, respectively. Calculate ΔrH(std), ΔrS(std), and ΔrG(std) using this information.
asked by KC 
CollegeBusiness Investments
An investor bought 100 shares of Copier Corp. for $65 a share. The firm paid an annual dividend of $2 a share. Commissions were $75 to purchase and $75 to sell. The price of the stock rose to $100 and the investor sold. What is the percentage earned on the
asked by Asia 
8th grade
four families bought popcorn at a game.The Wilson's bought half the bags of popcorn plus one. the Martinez's bought half of the remaining bags plus one. the Brightfeather's bought half of the remaining bags plus one. The Wilberly's bought half the
asked by unknown64 
Science
What are 2 examples of natural chemical changes and 2 examples of human caused chemical changes? Thanks.
asked by Pratigya 
science
if CH4, He, O2, and N2 are at the same temperature then which one is the least dense
asked by Anonymous 
kwantlen
calculate the number of moles in 15.og of Na2Cl
asked by dhaliwal 
Math: Calculus
Given f''(x) = 4x  3 and f'( 3) =2 and f( 3)=1. Find f'(x) =______ and find f( 1) =_____
asked by REALLY NEED HELP!!!! 
Statistics
How do you construct a frequency distribution table for the indicated data set? Month Precipiation (inches) January 2.01 February 2.08 March 2.39 April 2.85 May 6.21 June 9.33 July 5.70 August 7.58 September 7.63 October 5.64 November 2.66 December 1.83
asked by Matthew 
Chemistry
The standard free energy of activation of one reaction is 94.3 kj/mol^1 (22.54 kcal/mol^1). The standard free energy of activation for another reaction is 76.4 kJ/mol^1 (18.26 kcal/mol^1). Assume temp of 298K and 1 M conc. By what factor is one faster
asked by Tokey 
Math
How do you solve 3/4x+1/2y=10 and 3/2xy=4?
asked by Katie 
7th grade Math
I did tips for math i need HELP!!
asked by Anonymous 
Science
which bird cannot move its eyes at all? ( answer the riddle) It is known for being wise. It makes a sound described as a hoot. The bird is called an ___________. i think it's an owl but i am not sure about this question
asked by Evelyn 
Math
one out of every three seats on an aiplane is empty. There are 72 passengers on the plane. How many empty seats are there on the airplane?
asked by sadf 
physics
Transverse waves propagate at 17 {\rm m/s} on a string whose tension is 15 {\rm N}. What will be the wave speed if the tension is increased to 50 {\rm N}?
asked by Anonymous 
scienc
what does the statment"the properties of salt are diffrent from the properts of the elements that go into making them"mean? i don't get what they are asking.
asked by marisa 
9th grade Social Studies
i also have problems studying and understanding social studies. i don't know what to do my grades are way low. can you please give me some tips and ideas on how i can work on it?
asked by Angel 
Gr.12 Data Management
These 2 questions have to do with permutations answer to #126 answer to #23439 1. In how many ways can you form a 3 digit number, using only the digits of the number 21 150? 2. How many natural numbers less than 10 000 include at least one nine. please
asked by nini 
English
The Chinese restaurant is on the fire station. (When the fire station is on the second floor, and the restaurant is on the first floor, can we use this expression?)
asked by rfvv 
Chemistry
Explain how shielding contributes to the atomic radius trend within a group.
asked by Nick 
ENGLISH
An angel, robed in spotless white, Bent down and kissed the sleeping Night. Night woke to blush; the sprite was gone. Men saw the blush and called it Dawn. Standing by my bed in gold sandals Dawn that very moment awoke me Moon fades into dawn... an ivory
asked by Teressa 
math
Find each percent of increase from 48 ro 60 so 25% of 48 is 12 x= 25 % increase?
asked by lilly 
math
from 87 to 108 would the answer be 26% decrease?
asked by lilly 
Spanish 1
43. Sí, _____ semestre es fácil. a. el primero b. el primer c. la primera d. la una A? 47. ____ enseña cinco clases. a. El señor Blanco y la señorita Martin b. Profesor Diaz c. Señor Jimenez d. La señora Garcia D? 49. ¿Necesitan marcadores Paco y
asked by mysterychicken 
Math
I have two different questions. what is the set built notation of 11x24
asked by Lisa 
Chemistry
Spilit acidic acid into half reactions CL03^ + I2 yields IO3^ + CL^
asked by Anonymous 
math
How can you tell if an equation of a relation represents a linear relation?
asked by I NEED HELP NOW!!:) 
British Literature
Discuss the dramatic irony in Twelfth Night. Provide at least two examples in your essay? i don't have an answer yet, i was wanting some help.
asked by whit 
Math 111 URGENT
Find the vertical asymptotes of the following function: f(x)={x3}/{(x3)(x^24)}. The equation(s) of the vertical asymptote(s) of f is/are___ & ____
asked by Jessica 
Physics 11th grade
I have to determine the muzzle velocity of a toy gun by treating it as a horizontal projectile. What could be a possible hypothesis when a toy gun is shot 5 meters away from the bucket and the ball which was loaded in it is supposed to fall in?
asked by Dwina 
algebra
1)3/4+x>1 answer:x>1/4 2)103x5/3 3)7x>2 answer:x>5 x
asked by i need help now!! 
Math
8=1/3x+x
asked by Hannah 
anatomy and physiology
what cellular process involves mitosis?
asked by Lisa 
math
A computer that cost $1099 last year costs $9999 this yeat would it be 1099 from 9999 ?% of 1099 is 9999 right??
asked by lilly 
physics 2a
from solid sphere, solid cylinder and thinwalled cylinder.All three start from the same position and they all have the same kinetic energy a) which oblect will go the farthest b) does the result depend on the mass, radius of the object
asked by poisson 
8th grade math
According to the U.S. Census Bureau, in 2009 men comprised an estimated 93.2% of the veterans in the United States. What is the number of women veterans in the United States in 2009? Express your answer to the nearest whole number.
asked by Anonymous 
college
How effective is the formal social control system in the U.S.?
asked by Julia Corbett 
science
Which part of the brain is responsible for the maintenance of muscle tone and the coordination of muscle movements? A. Midbrain C. Hippocampus B. Hypothalamus D. Cerebellum
asked by muse 
algebra
write an equation in the form of y=x,that would demonstrate the given transformation. a shift to the left one space and up one space>
asked by draven 
range and domain
whats the domain and range of the equation 2x^2+2y^220=0
asked by asim 
Physics
In a very simple model of the lower atmosphere, air has a constant density of 1.22 kg/m3. How much would the air pressure change over a height difference of 100 m?
asked by Maree 
math
of the 43 presidents 15 were elected to 2 terms. what fraction of us presidents in simplest form was elected to serve two terms and it's not 15/43 what am I missing
asked by pat 
math
from 6.5 to 4.8
asked by lilly 
Chemistry
The second half of the equation is how i had done on the exam but he said its not balanced. How do I balance this? How would it look. I keep trying but not getting. I would appreciate it if you could do this question so I can use as a guide for other
asked by Jess 
Math
If a CD spins at 75 revolutions per minute, hoe long, in seconds, does it take for the CD to rotate through an angle of 1125 ?
asked by sadf 
world history
how successful was Napoleon's invasion of russia?
asked by 000 
English grammar
I am confused on how to identify a sentence as a complex sentence or a simple sentence. The sentence is "The first recorded trip to the Yellowstone geysers was made in 1807 by John Colter." I think it is simple...but am not sure if there is a subordinate
asked by Carolyn 
Chemistry HELP
Hey guys can someone help me with calculating masses of reactants and products ..... And also calculating limiting and excess reagents , I can't remember all the steps so I wanna know is there an easy way to remember it, I allways get confused and unit
asked by Saria 
Physics HELP HELP
(for some reason I keep getting this wrong. I put 90 for c, 5.6 for h and 22 for M(x), Then I took the natural log of both sides, but I keep getting it wrong) The mass of a radioactive element at time x is given by the equation below, where c is the
asked by Anonymous 
physical science
net force 50n+ 30n =
asked by jared 
Math
If a stone is tossed from the top of a 230 meter building, the height of the stone as a function of time is given by h(t) = 9.8t2 – 10t + 230, where t is in seconds, and height is in meters. After how many seconds will the stone hit the ground? Round to
asked by Jacque 
algebra
If 5T:9 = 1:2 what would t equal?
asked by Jessica 
math
All our streets run northsouth or eastwest, and the shop is 6 blocks east and 8 blocks north.I lost both races.The first tim, i rode directly east for 6 blocks and then directly north for 8 blocks.the next time i tried zigzagging.both times he was
asked by bobpursley please help me 
English
Can you please tell me which of the following alternatives are possible? 1) Which is the lowest mark a student can be given in the USA? (I really need to know the answer to this question). 2) If I catch you cheating, I'll give you the lowest possible (?)
asked by Franco 
please check
1)3/4+x>1 answer:x>1/4 2)103x5/3 3)7x>2 answer:x>5 x
asked by Math asap 
Math
2nd grade math question. Kara's shirt has 3 more tens than ones. The value of the ones is greater than 4 and less than 6. What is the number?
asked by matthew 
6th Grade Math
Estimation division. Problem: 28,622/921 My estimated problem: 27,000/900 Is this right?? If not, please explain. Thanks!
asked by Meg 
english
what does this quote mean “The main difference now in favor of American culture is the importance of technology telephone, internet, and films, all that did not exist in ancient Greece”.
asked by Anonymous 
science
what is the definition of "Element Symbol?"
asked by Erin 
math
If a cardboard box measures 1 1/2 feet on each side what expression will represent the volume of the box
asked by Ashley 
physical science
a sample of metal has a mass of 100 g and a volume of 2mL what is its density?
asked by Max 
Math
Mimi was 36 inches tall two years ago. If she is 17% taller this year, how tall is she. Round your answer to the nearest inch.
asked by lilly 
math
The population of Alaska was about 128,535. That was about 20.5% about how many people lived there? how would the proportion go? 20.5/100 = x/128535 or 20.5/100 = 128535/x?
asked by lilly 
algebra
12  3b = what? for b = 4.3
asked by Abby 
psychology
Consider the divied consciousness. Write 12 page discussing how hypnosis and meditation fosters health.
asked by brenda 
PreCalc
Simplify the ratio of factorials. (n+2)!/(n1)!
asked by B 
phy
A pendulum has a period of 0.75 s on Earth. What is its period on a planet where the acceleration of gravity is about 0.41 that on Earth?
asked by ami 
anatomy and physiology
When you swallow a peanut, the peanut first comes in contact with the?
asked by Lisa 
Calculus
t 3 5 7 9 11 13 V(t) 0 30 23 19 12 6 A. What is the largest number of subdivisions that can be used to estimate the definite integral ∫313V(t)dt? Answer: n=
asked by Erika 
algebra
what is the perimter of a rectangle. the length is 6 more than the width and the perimeter is 44
asked by Tina 
english
contemporary:fashionable ::ancient : normal correct formal natural obsolute
asked by hhhhh 
math
I need to find the sqrt of a number that has a greater mean absolute devieation that 2.53.
asked by Aria 
math
A computer that cost $1,099 last year cost $999 this year. Would it be about 9 or 9.1?
asked by lilly 
social studies
what are three methods to survey an area in archeological process?
asked by samantha 
algebra
Write the slopeintercept equation for the line that passes through(4,3) and has slope 5/4
asked by franklin 
Math
If you have 21tiles and there are twice as many blue than red and twice as many red than green how many red green and blue are there.
asked by Jose 
english
what type of verb tense is this? After reading about the successful steps to planning I am going to create a budget?
asked by marcus 
2nd grade
The sum of my ones digit and tens digit is 10. My tens digit is les than my ones digit and both my digits are prime. i am a prime number. what number am i?
asked by damien 
english
supplicate means appeal convert subjoin anoy borrow
asked by hhhhh 
4th grade
name 67,000 in two different ways
asked by kenadi 
12 Math
Graph the results of a coin toss: Toss Coins 0 20 1 12 2 5 3 1 4 0 State an equation that best fits the results (use n to represent the number of the toss). What physical phenomenon does this model? I was able to graph this, I just do not understand how to
asked by Ali 
math
Solve for x 1= (1/x) +(1/(x^2))
asked by Sasha 
math
What is a set of 5 numbers with a mean 0f 100, a range of 500, and a median of 100.
asked by Henry 
CHEMISTRY
Hello, Can you please tell me how a fisher chart differs from a traditional chart?
asked by DAVID 
math
from 80 to 95 would it be 18.75 or negative 18.75??
asked by lilly 
algebra
C=mx+b b flat monthl rate m represents cost in dollar perminute x number of minute used in month 73 minute
asked by Teresa 
science
what is the difference between a control and a variable
asked by help 
Pre cal
How do i find the point on a graph of y=(x^21)^(1/2) that is closest to the point (1,0)?
asked by Jessie 
math
Find each percent of increase from 48 ro 60 so 25% of 48 is 12 x= 25 % increase?
asked by lilly 
math
from 27 to 72 would the answer be 166.66666 = 166.7 increased?
asked by lilly 
12th grade
which of the following contributed most to the fish population dying during the 1970's?
asked by Da'shay 
hist from 1945
whatwould be the implications in comparing Nixon's policies of engagement with foreign policy strategies used during the Early Cold War.
asked by cristee 
math
suppose square was not a word used in mathematics. How would you descibe the shape that the word represents?
asked by bb 
5th grade
Explain the type of solution formed when steam from boiling water evaporates into the air
asked by Anonymous 
science
Can a solution be made by mixing a solid,liquid,and gas?
asked by 5th physical prop of matter 
math
need answer to this problem Scientific Notation S * 8^R
asked by Anonymous 
math
x/ 2 cm = 5 1/4 m/3 m
asked by lilly 
chinese
what does genius translate into madarin
asked by jhoin 
Data Management
These 2 questions have to do with permutations answer to #126 answer to #23439 1. In how many ways can you form a 3 digit number, using only the digits of the number 21 150? 2. How many natural numbers less than 10 000 include at least one nine. please
asked by Anonymous 
math
from 96 to 78 if I rounded to the nearest tenth would it be 18.8?
asked by lilly 
math
About 47 years to about 77 years. Find the percent of increase to the nearest percent. would the answer be 64%?
asked by lilly 
College Physiology
At the venular end of the capillary, the hydrostatic pressure is? A) higher than the osmotic pressrue B) lower than the osmotic pressure C) equal to the osmotic pressure D) higher than the hydrostatic pressure at the arteriolar end of the capillary
asked by shanice 
physics
How much spring elasticity would be needed to make a 50 pound child jump higher
asked by Bob 
Chemistry Honors
Hello, Can you please tell me how a fisher chart differs from a traditional chart?
asked by DAVID 
physics
A ball (m=53g) is projected vertically with an initial speed of 9.2m/s. If the ball rises to a maximum height of 3.6m, how much kinetic energy is dissipated by the drag force of air resistance? I know it is .373J How much higher would the ball have gone in
asked by dale 
US History
'Take a poll of your classmates to find out what they trust about the federal government and what they mistrust about it. Compile the answers into a list. Then use the list to make a bar graph of the top five answers.' Since I don't have classmates (.) I
asked by mysterychicken 
math
From 42 to 35 I got that the answer is 16.666666 reapeating. What would my answer be if I rounded to the nearest tenth?
asked by lilly 
keyboarding an word processing
a (Blank) is a form of written communication that is used primarily for internal communication
asked by aurora 
math
1= 3 + 4x what is the answer and how do you solve this problem?
asked by sarah12345 
English
In the play "Galileo" by Bertolt Brecht, what happens in scene 5 and what does it mean?
asked by Sarah 
history
How did the south feel about the civil war reconstruction?
asked by cierra 
math
From 77 to 13 would the final answer be 83.1 %?
asked by lilly 
math
from 96 to 78 would the final answer be 18.8 if I rounded to the nearest ten?
asked by lilly 
Statistics
The figures below represent the prices (in dollars) for both paper shredders and calculators. At the 0.10 level of significance, can it be concluded that the variance in price differs between the two types of machines? Paper shredders  Calculators
asked by Anon 
Science
What is the function of a Vesicle cell?
asked by Erin 
algebra
what is 4p+3q=36 9p+6q=78 ?
asked by katie 
college
Find the future value of $3500 at 3% compounded quarterly for 2 years
asked by Anonymous