Questions Asked on
October 4, 2011

Stoichiometry
Find the limiting reactant for the initial quantities of reactants 2k(s) + Cl2(g)> 2KCl(s) 1.8 mol K; 1 mol Cl2 I'm lost
asked by Monique 
Stoichiometry
Consider the reaction between reactants S & O2 2S(s) + 3 O2(g) ==> 2 SO3(g) If a reactant vessel initially contains 5 mol S and 9 mol O2, how many moles of S, O2 and SO3 will be in the reaction vessel once the reactants have reached as much as possible?
asked by Monique 
pysics
A projectile of mass 0.777 kg is shot from a cannon, at height 6.6 m, as shown in the ﬁgure, with an initial velocity vi having a horizontal component of 7.8m/s. The projectile rises to a maximum height of ∆y above the end of the cannon’s barrel and
asked by steve 
Chemistry
Which of the subshells in the electron configuration of Hf behave as core orbitals Check all that apply 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d
asked by Caitlin 
Stoichiometry
For each precipitation reaction, calculate how many grams of the first reactant are necessary to completely react with 17.3 g of the second reactant. 2KI(aq) + Pb(NO3)2(aq)>PbI2(s) + 2KNO3(aq) Not looking for the answer I really want to know if I did it
asked by Monique 
Chemistry
What do we call the part of the universe that is not part of the system
asked by Caitlin 
Math
Write the fact family for 3, 9, , and 12.
asked by khrys 
Chemistry
An electron moves with a velocity of 2.5 x 10^8 cm/s. What is its wavelength? (The mass of an electron is 9.109 x 10^28 g.)
asked by Anonymous 
Physics
The front 1.20 m of a 1,350kg car is designed as a "crumple zone" that collapses to absorb the shock of a collision. (a) If a car traveling 22.0 m/s stops uniformly in 1.20 m, how long does the collision last? s (b) What is the magnitude of the average
asked by Allie 
chemistry
calculate the number of gram of Al2S3 which can be prepared by the reaction of 20 gram of Al and 30 gram of sulpher . how much the non limiting reactant is in excess?
asked by sss 
chemistry
1. A sample of 10.7 g of CO reacts completely with O2 to form CO2. How many grams of CO2 will be formed? 2. Urea (NH2)2CO is prepared by reacting ammonia with carbon dioxide. The byproduct is water. 637.2 g of ammonia are reacted with 787.3 g of carbon
asked by Anonymous 
Chemistry
You are in a mountain range with atmospheric air pressure of 520 mmHg , and you wish to boil some eggs. What is the approximate boiling point of the water at this air pressure?
asked by Steph 
Calculus
A square is inscribed in a circle. If the area of the circle is 144(pi)cm*squared* sorry the square root thing isnt showing up. Then the exact perimeter of the square is... I really don't get how to solve this, but the answer is supposed to somehow be
asked by Untamed 
chemistry
sodium borohydride (NaBH4) is used industrially in many organic syntheses. one way to prepare it is by reacting sodium hydride with gaseous diborone. Assuming an 86.8% yield,how many grams of NaBH4 can be prepared by reacting 7.98g of sodium hydride and
asked by help 
english
Which of the following sentences uses parallelism effectively? A. The large planteating dinosaurs were quite slow, rather stupid, and extremely hungry. B. The Red Sox fans screamed, yelled, and were applauding wildy. C. The report was good because it was
asked by Diane 
HARD PHYSICS
A playground is on the flat roof of a city school, 5.7 m above the street below (see figure). The vertical wall of the building is h = 7.10 m high, to form a 1.4mhigh railing around the playground. A ball has fallen to the street below, and a passerby
asked by Anonymous 
physics
In terms of given quantities, by what amount of time, , does Tim beat Rick? It will help you check your answer if you simplify it algebraically and check the special case . Express the difference in time, in terms of , , and .
asked by Amy Love 
EnglishCommas,Check
The horse ran down the hill and through the meadow. a. Correct 2. (Points: 2) The restaurant has openings for waitresses bus boys and fry cooks. b. Incorrect 3. (Points: 2) Whenever I hear the opening measure of Beethoven's Fifth Symphony I get goose
asked by HM 
Chemistry
How much 1,2dibromocyclohexane should be obtained by adding bromine in carbon tetrachloride to 1g of cyclohexene
asked by john 
Algebra 2 (Linear Programming)
An airline will provide accommodations for a minimum of 2000 firstclass, 1500 tourist, and 2400 economyclass passengers. Airplane P1 costs $12,000 per miles to operate and can accommodate 40 firstclass, 40 tourist, and 12 economyclass passengers.
asked by Peter 
Physics
In a scene in an action movie, a stunt man jumps from the top of one building to the top of another building 3.5 m away. After a running start, he leaps at an angle of 14 with respect to the flat roof while traveling at a speed of 5.6 m/s. The
asked by Travis 
Government US
2. Which of the following statements best describes the relationship today between government and the economy in the United States? a. The economy is largely selfregulating. b. The government subsidizes economic interests but otherwise leaves them to
asked by HM 
chemistry
Give the mass in grams of diphosphorus pentoxide that contains 2.0 x 10^(24) oxygen atoms.
asked by miriam 
Chemistry
Write the correct symbol in standard form for the isotope of platinum that contains 118 neutrons.
asked by Haile 
Physics
An unmarked police car traveling a constant 80 is passed by a speeder traveling 145 .Precisely 2.50 after the speeder passes, the police officer steps on the accelerator; if the police car's acceleration is 1.80 , how much time passes before the police car
asked by George 
Physics
A rope attached to an engine pulls a 240 Newton crate up an 14.7 degree ramp at a constant speed. The coefficient of kinetic friction for the surfaces of the crate and ramp is .32. What is the magnitude of the force that the rope exerts on the crate
asked by Rachel 
Physics
A highspeed photograph of a club hitting a golf ball is shown in the figure below. The club was in contact with a ball, initially at rest, for about 0.0037 s. If the ball has a mass of 55 g and leaves the head of the club with a speed of 2.7 102 ft/s,
asked by Allie 
math
the arcade has three pinball machines and five video games.If a person wants to play one pinball machine and one video game,how many different combinations of games could that person play?
asked by felix 
chemistry
Write a balanced chemical equation for the reaction that occurs when the hydrocarbon styrene, {\rm C}_{8}{\rm H}_{8}(l), is combusted in air.
asked by seema 
math
A movie theater runs two films continuously. One film runs for 85 minutes and a second film runs for 100 minutes. Both movies begin at noon. When will the two films start again at the same time?
asked by shelly 
chemistry
Calculate the pH at the point in the titration of 25.00 mL 0.108 M HNO2 at which 10.00 mL 0.162 M NaOH have been added. For HNO2, Ka=5.1 x 10^4 and: HNO2 + OH > H2O + NO2 I know that HNO2 is a weak acid and NaOH is a strong base. Help given to me
asked by Holly 
chemistry
The density of a 2.45 M aqueous methanol solution is .976 g/ml. what is the mass of water present in 1.00 liter of this solution
asked by kyle 
chemistry 12
For the acidbase neutralization reaction of Carbonic acid, H2CO3(aq) and lithium hydroxide, LiOH(aq), write the blanced: a)complete equation b) Ionic equation c) Net ionic equation.  i got a) H2CO3(aq) + 2LiOH(aq) = 2H2O(l)
asked by Robyn 
Chemistry
a) Calculate [H3O^+] in a 0.15M solution of benzonic acid, HC7H5O2(aq) having K of 6.4x10^5. b) Calculate the per cent ionization of the HC7H5O2. I got.. A) 0.16M but i did it again and got 7.2M so i'm very stuck as to the very different answers i got. B)
asked by Sarah 
Physics
A 79.0kg fullback running east with a speed of 4.00 m/s is tackled by a 93.0kg opponent running north with a speed of 3.00 m/s. (a) Why does the tackle constitute a perfectly inelastic collision? (b) Calculate the velocity of the players immediately
asked by Allie 
Just for "Ms.Sue"
Hey, "Ms.Sue". Ms.Sue you have been very helpful. But I keep getting stuck. 5th grade math is a challenge especially after my teachers stroked and we were out of school for almost all of September and no one in my house understands this new math either. I
asked by Candy Corn 
Stoichiometry
Find the limiting reactant for the initial quantities of reactants 2k(s) + Cl2(g)> 2KCl(s) 1.8 mol K; 1 mol Cl2 I'm lost
asked by Monique 
Chemistry
If 200. mL of 2.00 M H3PO4 solution is added to 600. mL of 2.00 M NaOH solution, the resulting solution will be ____ molar in Na3PO4.
asked by Fran 
Chemistry
Silver nitrate (AgNO3) reacts with sodium chloride as indicated by the equation AgNO3 + NaCl ! AgCl + NaNO3 . Howmany grams of NaCl would be required to react with 518 mL of 0.543 M AgNO3 solution? Answer in units of grams
asked by Broy 
Physics
A car can slow down at 5.10 m/s2 without skidding when coming to rest on a level road. What would its acceleration be if the road were inclined at 12o uphill? [Ask yourself – What is the same about the situation on the level road and on the incline?]
asked by william 
Physics
You are pulling your little sister on her sled across an icy (frictionless) surface. When you exert a constant horizontal force of 113 N, the sled has an acceleration of 1.3 m/s2 If the sled has a mass of 6.6 kg, what is the mass of your little sister?
asked by Jessica 
~History~
Write an essay that compares and contrasts the ways in which China and Japan responded to the West. Describe how each nation’s decision to respond to the West affected its domestic and foreign affairs in the years that followed. (i researched a lot on
asked by *Anna* 
DR.BOB HELP CHEMISTRY!
How many milliliters of a 0.3 molar HCl solution are needed to react completely with 8 grams of zinc according to the following equation? ? HCl + ? Zn → ? ZnCl2 + ? H2 Answer in units of mL
asked by Rara 
sport
what are the legal factors and regulatory bodies that influence health and safety in sport thank you.
asked by elizabeth 
science
Suppose you are standing on the sidewalk. Describe the direction of your motion relative to the car and plane. answer my motion would seem slower than the car but faster than the plane. I know there has to be a better answer, any suggestions?? Thank you.
asked by jill 
chemistry 12
Identify the two conjugate acidbase pairs in each of the following: A) H2PO4^(aq) + HSO4^(aq) = H3PO4(aq) + SO4^2(aq) B) HI(aq) + CN^(aq) = HCN(aq) + I^(aq) i got a) H2PO4^ , HSO4^ and SO4^2 b) CN^ and I^ But i don't think that these are right,
asked by Robyn 
calculus
For what values of x does the graph of f(x)=x+2sinx have a horizontal tangent?
asked by Shelley 
Lati
What's the accusative case for 1. magna urbs 2. rex fortis 3. navis longa 4. matres laetae 5. omnes puellae
asked by Ashley 
physics
You head downstream on a river in a canoe. You can paddle at 5.2 km/h and the river is flowing at 2.2 km/h. How far downstream will you be in 30 minutes?
asked by Eddie 
trig
if cot 17 degrees = 3.2709, find tan 73 degrees
asked by james 
chemistry
How many moles of carbon, hydrogen, and oxygen are present in a 100g sample of ascorbic acid?
asked by Anonymous 
Chemistry
What are the molecular and net ionic equations for potassium chloride + ammonium phosphate
asked by Chris 
physics
A boat heads directly across a river 39 m wide at 3.9 m/s. The current is flowing downstream at 2.4 m/s. (a) What is the resultant velocity of the boat? m/s (magnitude) ° (direction) (b) How much time does it take the boat to cross the river? s (c) How
asked by Eddie 
physics
A projectile of mass 0.777 kg is shot from a cannon, at height 6.6 m, as shown in the ﬁgure, with an initial velocity vi having a horizontal component of 7.8m/s. The projectile rises to a maximum height of ∆y above the end of the cannon’s barrel and
asked by steve 
Government US
33. Which of the following is correct about environmental policy? a. The national parks are subject to a dual use policy of preservation, recreation and exploitation of the rich natural resources. b. The Environmental Protection Agency was elevated to
asked by HM 
maths
what single discount is successive discounts of 30% and 50% equivalent to?
asked by haryot 
calculus
A street light is at the top of a 16 ft tall pole. A woman 6 ft tall walks away from the pole with a speed of 4 ft/sec along a straight path. How fast is the tip of her shadow moving when she is 30 ft from the base of the pole?
asked by Anonymous 
Physics
A hot air balloon is rising at a constant velocity of 13.3 m/s. When the balloon is at a height of 15 m, a heavy object is dropped overboard. IF air resistance on the object is neglected, how long does it take for it to reach the ground?
asked by Jessica 
USA PoliScience
Select a two interest groups that are on opposite side of some issue or policy goal. I was thinking I should write about American Freedom Agenda But does the question mean we have to find two groups against each other? Or one group on an issue.. and is my
asked by HM 
chemistry
How many moles of carbon, hydrogen, and oxygen are present in a 100g sample of ascorbic acid?
asked by julia 
physics
the weight of a solid is 80g in air and 50g in liquid of relative density 1.5. calculate the relative density of the solid.
asked by pavatharani 
chemistry
An unknown mixture containing KClO3 was added to an ignition tube weighting 41.960g, The tube and mixture was then found to weight 43.772g. After the first heating, the tube and its contents weighed 43.621g. After the second and third heatings, it weighed
asked by help 
statistics
below is the test scores for students in a statistics class.80,65,79,83,60,79,90,77,84,93.the professor assigned a grade of c to students whose test scores were within 5 points of the mean in either direction .how many students got cs?list their test
asked by ron 
Physics
Tarzan, who weighs 899 N, swings from a vine through the jungle. How much work is done by the tension in the vine as he drops through a vertical distance of 4.45 m?
asked by Suzy 
Physics
A rigid tank having a volume of 0.100 m3 contains helium gas at 150 atm. How many balloons can be inflated by opening the valve at the top of the tank? Each filled balloon is a sphere 0.300 m in diameter at an absolute pressure of 1.30 atm.
asked by Jim 
Social Studies 9
HELP!!!! How did voltaire use irony to insult rousseau. i really need to know !!.
asked by Stephanie 
college chem
Ethanol (C2H5OH) boils at a temperature of 78.3oC. What amount of energy, in joules, is necessary to heat to boiling and then completely vaporize a 20.0 g sample of ethanol initially at a temperature of 13.6oC. The specific heat of ethanol is approximately
asked by john 
chemistry
how much heat is needed to convert 8.75g of 100c water to steam?
asked by Anonymous 
chemistry
Will a precipitate form when an aqueous solution of (NH4)4CO3 is mixed with Fe(NO3)3
asked by Anonymous 
Physics
We consider the case shown in the figure below. Two objects with masses m and M are connected with a taut string running over a pulley. The pulley rotates without friction. The two masses are given as M = 6.23 kg and m = 2.54 kg. A second taunt string
asked by Kristen 
Chemistry
A 36.0mL sample of 1.20 M KBr and a 56.0mL sample of 0.700 M KBr are mixed. The solution is then heated to evaporate water until the total volume is 60.0mL. What is the molarity of the KBr in the final solution?
asked by Cecelia 
Chemistry
How many moles and number of ions of each type are present in the following aqueous solution? 113 mL of .490 M aluminum chloride.
asked by Tyler 
5th Grade Math
Hector's bean plant grew 14 inches in 3 months. Which shows how many inches the plant grew each month? F)3/14 inch G) 3 1/4 inches H) 3 2/3 inches J) 4 2/3 inches And how do i get the answer?
asked by Nicole 
physics
A spy in a speed boat is being chased down a river by government officials in a faster craft. Just as the officials' boat pulls up next to the spy's boat, both reach the edge of a 7.7 m waterfall. If the spy's speed is 19 m/s and the officials' speed is 29
asked by faviola 
calculus
A mass on a spring vibrates horizontally on a smooth level surface. Its equation of motion is x(t)=8sint, where t is in seconds and x in centimeter. a. Find the velocity and acceleration at time t b. Find the position, velocity, and acceleration of the
asked by bob 
Math
Determine whether the following statement makes sense or does not make sense, and explain your reasoning: By modeling attitudes of college freshmen from 1969 through 2006, I can make precise predictions about the attitudes of the freshman class of 2020. A)
asked by Kara 
chemistry
What is the pH of a solution prpared by mixing 50.0 ml of .200 M HCLO4 with 10.0 ml of .100 M KOH
asked by Rachel 
Chemistry
2. Why is it easier to remove excess acetic acid from the products than excess isopentyl alcohol?
asked by Anonymous 
Word Problems!!!!
Help with the following problems: 1. Leah bought 2 boxes of cookies. She ate 3 and found that she had 21 left. How many cookies were in each box? 2. Arturo built 3 sandcastles with 6 towers each. Paco built 5 sandcastles with 4 towers each. Who built more
asked by Candy Corn 
physics
You head downstream on a river in a canoe. You can paddle at 5.2 km/h and the river is flowing at 2.2 km/h. How far downstream will you be in 30 minutes?
asked by Eddie 
math
a bird flies due north 2 miles then east 3 miles then north 4 miles then east 5 miles how far is the nest from the ocean
asked by mary 
physics
While flying due east at 130 km/h, an airplane is also carried northward at 41 km/h by the wind blowing due north. What is the plane's resultant velocity? (Draw vector diagram to solve problem.) Magnitude km/hDirection (north of east) 72° 18° 18° 72°
asked by Eddie 
Algebra 2
A bicycle builder makes two models. The basic model requires 2 hours of frame construction, 4 hours of assembly, and 1 hour of finishing. The deluxe model requires 3 hours of frame construction, 3 hours of assembly, and 2 hours of finishing. Each day 36
asked by Peter 
phusics
A car can slow down at 5.10 m/s2 without skidding when coming to rest on a level road. What would its acceleration be if the road were inclined at 12o uphill?
asked by william 
Math: Linear Programming
Describe the linear programming situation for this system of inequalities. x≤1 , y ≥0 , 3x+y≤5 infeasible unbounded an optimal solution alternate optimal solutions Describe the linear programming situation for this system of inequalities where you
asked by HC 
Social studies
What were the earliest civilizations in Mesopotamia? What would be a physical description of Mesopotamia? Cultural description of southwest Asia?( main language, religion, resources,etc)
asked by Ansley 
Algebra Help!!
Find an example of scientific notation in real life Explain why the number was written in scientific notation. Create a multiplication problem with scientific notation
asked by Katie A 
Calculus
If f(x)=[(x−1)/(1+5x)], there are two points on the graph of y=f(x) at which the tangent lines are parallel to the line x−2y=2. Type in the x values of these points. Type the smaller number first, then the larger number.
asked by Joe 
math
Bethany has 40 apples. Write a subtraction story about the apples that would require regrouping. Then write the answer in a complete sentence.
asked by Amanda 
physics
a rock was thrown at the height of 50.0 m above the ground with an initial velocity of 20.0 m/s straight upward.
asked by hd 
Government US
28. Which of the following statements is true? a. X The national debt was eliminated in 1998. b.X The Chair of the Fed creates the president’s budget on an annual basis. c. Keynes advocated deficit spending to counteract an economic downturn. d.X The
asked by HM 
Physics
After the Sun exhausts its nuclear fuel, its ultimate fate may be to collapse into a white dwarf state. In this state, it would have approximately the same mass as it has now, but its radius would be equal to the radius of earth. (a) Calculate the average
asked by bob 
5th Grade Math
what fraction is the largest? 3 2/3 or 3 3/4 or 3 1/2 or 3 3/5?
asked by Nicole 
Math
Pretty Please help me undderstand ratios and rates. I have been to a buncha other sites trying to figure them out and I just don't get them. I would really apprieciate it if some one could help. Pretty please with whip cream and cherries on top :)
asked by Alice 
Physics
A dockworker loading crates on a ship finds that a 19kg crate, initially at rest on a horizontal surface, requires a 70N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 60 N is required to keep it moving
asked by Ricky 
physics
Identical +1.39 µC charges are fixed to adjacent corners of a square. What charge (magnitude and algebraic sign) should be fixed to one of the empty corners, so that the total electric potential at the remaining empty corner is 0 V?
asked by ashley 
Calculus
Find dy/dx by implicit differentiation: x^22xy+y^3 = c Thank you!
asked by Linda 
Physics
A mass of 18 kg is being pushed up a frictionless incline with a constant force of 20 Newtons directed parallel to the incline, up the incline. At the top of the incline the mass is moving at 23 m/s up the incline. If the angle of inclination is 58 degrees
asked by Tina 
Identify Topic Sentence
Read each of the following paragraph and underline the topic sentence. Many plant foods naturally contains toxins in small amounts, so through they're generally safe to eat, consuming them in very large amounts could be harmful. Potatoes that have been
asked by ME 
physics
You head downstream on a river in a canoe. You can paddle at 5.2 km/h and the river is flowing at 2.2 km/h. How far downstream will you be in 30 minutes?
asked by Eddie 
mathematics
the london eye in england is the biggest big wheel in the world. it rotates with people on it so that they can get a view of the city of london from high up. there are 32 cabins attached to the wheel that carry passengers and it takes one approximately 30
asked by mahlodi 
Socials
Nationalism Imperialism Autonomy Definition of all these three. Nationalism means supporting your own country. Imperialism means supporting Britain always. Autonomy means Independence. If you could add to these definitions that would be great. Also for the
asked by Mysterious 
english
for the article "DON'T LEAVE ME HERE TO DIE" i need to ask tought questions as a interviewer, what kind of tough questions could i ask? one of my question is: Did you have guilt over not saving Fran? can I please have questions.
asked by Anonymous 
Physics
A spring has a spring constant of 42 N/m. How much work is required to stretch the spring 1.5 cm from its equilibrium position?
asked by Kels 
physics
How do we compensate for thermal expansion /contraction in the construction of railway tracks? How do we compensate for thermal expansion /contraction in the construction of steel bridges? How do we compensate for thermal expansion /contraction in the
asked by anil 
5th Grade Math
Marissa and her friends have 3 pizzas. they eat 2 1/4 of the pizzas. which model shows how much of the pizza they ate? On the pic they have they have each pizza having 8 slices each, so what would the pies that have been eaten look like?
asked by Nicole 
Physics
A man drags a table 4.25 m across the floor, exerting a constant force of 54.0 N, directed 28.0° above the horizontal. I have found the work done by the applied force to be 202.6 J but I can't find the second part of the question which is below. (b) How
asked by Cindy 
math
decimal number patterns rules 4.8, 9.6, 8.9, 17.8, 17.1
asked by Peter 
Chemistry
A 36.0mL sample of 1.20 M KBr and a 56.0mL sample of 0.700 M KBr are mixed. The solution is then heated to evaporate water until the total volume is 60.0mL. What is the molarity of the KBr in the final solution?
asked by Cecelia 
math
Find b such that (8x+1/b)2=x has a solution set given by {3}. b =
asked by Lesley 
Writing
Does Feature Writer means a creative writer ?
asked by Laruen 
Physics
Diane rows a boat at 8.3 m/s directly across a river that flows at 5.6 m/s. (a) What is the resultant speed of the boat? m/s (b) If the stream is 250 m wide, how long will it take Diane to row across? s (c) How far downstream will Diane be
asked by Eddie 
physics
An airplane flies toward 124° at 525 km/h. What is the component of the plane's velocity (a) toward 90°? km/h (b) toward 180°? km/h
asked by Eddie 
5th grade math
Pete looked at the colors of the shoes worn by his classmates. He found that 1/5 of the class wore white shoes, 3/20 wore blue shoes, 2/5 wore black shoes, and 1/4 wore red shoes. what color shoes did the most students have on? And how would i show the
asked by Nicole 
English
I urgently need to know if the following questions are correct? As they refer to Macbeth's plot, do you think I should use the simple present? 1)What is (was) Lady Macbeth’s plan? 2)Who is (was) the real Macbeth? 3)Who is blamed for Duncan’s death in
asked by Henry2 
physics
At what temperature is the density of water MAXIMUM ? Why does water have a maximum density ( Other liquids do not)
asked by anil 
physics
In the equation y squaared minus 1/4 g squared t cubed, y is the displacement, t is the time, and g is the gravitational acceleration. The right hand side of the equation has units of?
asked by Amanda 
Prob and Stats
If X is a random variable with distribution X~N(350,110) find (a)P(X
asked by Kathryn 
physics
A 29 kg child, with a 4.5 kg backpack on his back, first stands on a sidewalk and then jumps up into the air. Find the magnitude and direction of the force on the sidewalk from the child when the child is (a) standing still and (b) in the air. Now find the
asked by ayla 
Physics HELP
A student has six textbooks, each with a thickness of 4.0 cm and a weight of 30 N. What is the minimum work the student would have to do to place all the books in a single vertical stack, starting with all the books on the surface of the table?
asked by Kels 
chemistry
What mass in grams of an aqueous hydrochloric acid solution that is 37.0% by mass hydrogen chloride is needed to supply 2.000 moles of hydrogen chloride?
asked by Li 
Physics
You find it takes 230 N of horizontal force to move an unloaded pickup truck along a level road at a speed of 2.4 m/s. You then load up the pickup and pump up its tires so that its total weight increases by 42% while the coefficient of rolling friction
asked by Kyle 
11 Anthropology
Repression: banishing the _______:banishing old, bad memories, or even current things. Regression: Moving _______ to an earlier stage Displacement: Moving an _____ from one object (target) to another can someone help me fill in the blanks?
asked by Rebecca 
Math word problem(algebra)
Diana buys 20 apples at x cents each&40 oranges&sells the bags for 20x cents each.Find out the amount that Diana paid for each apple if she obtained a total of RM 24 from selling all the fruits
asked by kimi 
physics
cannon is on top of the hill which is 60 meters from the ground. A cannonball is being blast with an initial velocity of 25 meters per seconds. What the maximum height it can reach?
asked by Anonymous 
chemistry
Will a precipitate form when an aqueous solution of (NH4)4CO3 is mixed with Fe(NO3)3
asked by Anonymous 
General
Is there anyone on here that has been part of the Pennfoster program? I need advice
asked by anonymous 
English
The horse ran down the hill and through the meadow. Is this correct?
asked by HM 
English
Whenever I hear the opening measure of Beethoven's Fifth Symphony I get goose bumps. I think this is incorrect. Is it ?
asked by HM 
Identify Topic Sentence
Read each of the following paragraph and underline the topic sentence. Many plant foods naturally contains toxins in small amounts, so through they're generally safe to eat, consuming them in very large amounts could be harmful. Potatoes that have been
asked by ME 
MBA – I/ Semester – I math
Differentiate following with respect to x. (3x2 – 5ax + a2)4
asked by anil 
HCA
Is this the proper order for Alphabetic filing? Norman BaileyJones o Norman Bailey Jones o Robert D’Angelo o Robert D. Angelo o Robert DeAngelo o Judith delaCroix o Judith Dela Croix o Franklin M. Haney o Franklin Mac Haney, Jr. o Franklin MacHaney, Jr.
asked by jim 
CalculusReiny
V = Radical The expression: V2(V512V3)V3(V82V30) can be written in simplest form aVbcVd, where a, b, c ,d are all positive integers. The value of a + b + c + d is ________. So after solving all this out, I arrived at 7V10  14V6. That  is beside the
asked by Untamed 
Chemistry
A solution of sodium hydroxide is standard ized against potassium hydrogen phthalate (KHP, formula weight 204.2 g/mol). From the following data, calculate the molarity of the NaOH solution: mass of KHP 1.654 g; buret reading before titration 0.23 mL;
asked by Broy 
Math
The smallest real number in the solution set of 2x > 6 is 4. A) True B) False  The smallest real number in the solution set of 2x > 6 is 3. C) False  The smallest real number in the solution set of 2x > 6 is a number greater than 3. For example, 3.01 is
asked by Mary 
Biology
how many mL of concentrated (15 M) hydrochloric acid (HCL) are required to prepare 500 mL of 6 M hydrochloric acid?
asked by Neika 
HISTORY
In the development of the Roman Empire, the Romans treated citizenship as A. meaningless because the Roman Empire was tyrannical. B. something to be shared with conquered people. C. belonging only to native Romans. D. a benefit worthy only of peoples who
asked by katelynn(pennfoster student) 
5th Grade Math
Eduardo and his friends niked 7/4 miles. What mied number shows the distance they hiked?
asked by Nicole 
To Reiny
Reiny could you please check my Calculus post below, it says CalculusReiny.
asked by Untamed 
Physics
A stone is thrown horizontally at 30.0m/s from the top of a very tall cliff. Calculate its horizontal position and vertical position at 2s intervals for the first 10.0 s.
asked by Ruth 
MBA – I/ Semester – I math
Differentiate following with respect to x f(x) = (3x^2 – 5ax + a^2)^4
asked by anil 
Calculus
If f(x)=[x−1/(1+5 x)], there are two points on the graph of y=f(x) at which the tangent lines are parallel to the line x−2y=2. Type in the x values of these points. Type the smaller number first, then the larger number.
asked by Jack 
COMPUTERSEXCEL 2007
which one of the following formulas accurately describes the meaning of this formula: (A5*B5)+10 A)add 10 to B5 and multiply the resulting value by A5 B)multiply A5 bY B5,then add 10 to the resulting value C)divide B5 into A5,then add 10 to the result D)
asked by vedrana 
5th Grade Math
I just wanted to Thank you Ms. Sue for the help my son is in 5th grade and some of his homework i don't understand, and i don't want him to turn it in wrong. So if i have more of an understanding then i can help him more with his homework so he gets a
asked by Nicole 
chemistry
What is the specific heat capacity of a metal if it requires 176.1 J to change the temperature of 15.0 g of the metal from 25.00°C to 30.00°C?
asked by j 
Pre Algebra
use the discriminant to determine whether the following equations have solutions that are: tow different rational solutions; two different irrational solutions; exactly one rational solution; or two different imaginary solutions. 25x^2=10x1
asked by dianne 
physics
A stone falls from a cliff. It lands on the ground below the cliff after 4.2 seconds. The height of the cliff can be calculated to be what?
asked by Amanda 
statistics
in a sample of 1000 people ,113 are left handed.the results of the sample are shown in the table.find the probability that a randomly selected person is a left handed,given that she is a woman.
asked by ron 
science
what is a machine?
asked by sara 
English
Shall I use the simple past only for the following two questions (which refer to history)? I included other doubts. Thank you. 1) Who were the King's Men? 2) Who was the real Macbeth. 3)What does Malcolm tell his soldiers to do when the army reaches (or
asked by Henry2 
Algebra
The larger of two numbers is 23. if three times the number is 5 more than eight times the smaller, find the smaller number.
asked by Jessica 
Physics
Question Part Points Submissions Used A 45.0kg girl is standing on a 160kg plank. The plank, originally at rest, is free to slide on a frozen lake, which is a flat, frictionless surface. The girl begins to walk along the plank at a constant velocity of
asked by Allie 
5th Grade MATH!
in Which set is 2/3 of the numbers composite? a. 21,29,15,9,27,30 b.18,5,19,33,23,20 c.10,28,21,35,19,11 d.34,12,16,32,22,8
asked by Anonymous 
chemical experiment
If a 200mm test tube is substituted for the gas buret in a Aluminum Analysis experiment ( collect H2 from the sample ,and measure its pressure and volume , then, find out its number of moles and Aluminum's percent in the sample) ,indicate the additional
asked by lamis 
english
five litrary terms
asked by akinlo 
physics
A box of box is at rest on the floor. Identify the forces acting on the box by drawing a freebody diagram.
asked by yvone. 
pre algebra
the ratio of boys to girls in an art class is 3.5. there are 12 boys in the class. how many girls are in the class?
asked by jeffrey 
Statistics
If someone gives you a sample mean and a standard deviation, you can find a confidence interval. But what if someone gives you the confidence interval instead and asks you to find the sample mean? How can you do that? Here's an example: a 95% confidence
asked by Hope 
Chemistry
How many number of ions of each type are present in the following aqueous solution? 113 mL of .490 M aluminum chloride.
asked by Chris 
math
if Charlie earns 3/4 of what joan earns. and together they earn 490.00 a week. How much does charlie make?
asked by gilbert 
Algebra 2 (Linear Programming)
The Carbon coal company has 2 mines, a surface mine ad a deep mine. it costs $200 per day to operate the surface mine and $250 to operate the deep mine. Each mine produces a medium grade and a mediumhard grade coal, but in different proportions. This
asked by Peter 
Econ
The nominal interest rate is 12 percent per year in Canada and 8 percent per year in the United States. Suppose that the real interest rates are equalized in the two countries and that purchasingpower parity holds. A friend proposes a getrichquick
asked by Anonymous 
Physics
When a block is placed on top of a vertical spring, the spring compresses 4.40 cm. Find the mass of the block, given that the force constant of the spring is 1600 N/m.
asked by Bernie 
chemistry
In sugar production, a process involves seeding of a supersaturated solution (sugar as solute) by adding 'ground sugar with few amounts of isopropyl alcohol'. My question is, why must the ground sugar be wetted with isopropyl alcohol? thanks in advance.
asked by Namie 
Chemistry
Write the correct symbol in standard form for the isotope of platinum that contains 118 neutrons.
asked by Haile 
geometry
Given a line l, let A be a point on l, and B another point not on l. a. prove all the points of the line segment AB, except for A lie on the same side as B.
asked by Ashley 
Science
1. What are the impacts of Electromagnetic treatments? 2. Name one biotechnology and its impact on society.
asked by Crissy XD 
calculus
Find the points on the curve y=(cosx)/(2+sinx) at which the tangent is horizontal.
asked by bob 
Math
find the equation to the tangent to the curve y = (4x + 3)^5 at the point (0.5, 1), giving your answer in the form y = mx + c
asked by Rory 
Math
Wat is 34*(n*2)=680
asked by Shena 
calculus
Find ther derivative of the functions. a. f(x)=(4xx^2)^100 b. f(x)=(1+2x+x^3)^1/4
asked by Anonymous 
History
I need to think of some political, social, and economic issues of the late 19th century. I'm a little confused because some things can go in more than one category, like Labor laws could be all 3, right? Would women's and blacks right to vote be political
asked by Em 
6th grade english
I'm helping out my sister with her english homework and I am confused on what to do. Underline the independent clauses once and the dependent clauses twice. Circle the phrases. Our football team is proud because the team is undefeated. The part that i
asked by David 
chemistry
Will a precipitate form when an aqueous solution of (NH4)4CO3 is mixed with Fe(NO3)3
asked by Anonymous 
Algebra
Produce a third degree polynomial that has exactly the roots 3 and 5 with yintercept 1350. I understand I could start with (x+3)(x5)^2, but i don't know how to get the yintercept 1350 with the same conditions. Please help. thank you.
asked by Nilan 
English
Steve refused to write a term paper; therefore, he failed the course. Is this incorrect?
asked by HM 
Understanding Paragraphs
Read each of the following paragraph and underline the topic sentence. Many people assume that the law is based on the consent of citizens, that is treats citizens equally, and that it serves the best interest of society. If we simply read the U.S
asked by ME 
Understanding Paragraphs
Read each of the following paragraph and underline the topic sentence. Although color is generally the most conspicuous characteristic of a mineral, it is considered a diagnostic property of only a few minerals. Slight impurities in the common mineral
asked by ME 
Physics 1
A mass of 5 kg lies on a frictionless, horizontal floor. A force of 135 Newtons is applied to the mass at an angle above the positive x axis and a force of 14 Newtons is applied to the mass at an angle of 22.8 degrees below the negative x direction (see
asked by J 
psychology
In Pavlov's classical conditioning experiments, the neutral stimulus that comes to elicit a conditioned reponse is known as the: A) unconditioned stimulus B) conditioned stimulus C) reinforced stimulus D) unreinforced stimulus I believe the answer is A or
asked by Tisha 
College Chemistry
Calculate the concentrations of the following solutions, assuming the volumes are exact measurements: a. 18.64g of sodium hydroxide in 350mL of solution b. 8.97mL of 18M hydrochloric acid in 250mL of solution
asked by Bekah 
Statistics, Finance
If the distribution of returns for an asset has a variance of zero, then covariance of returns between that asset and the returns any other asset must equal zero. True or False
asked by John 
Math
The revenue R from selling x number of phone widgets is given by , and the cost C of producing those widgets is given by . Find the number of widget it requires to break even.
asked by Liz 
Mathematics
Calculate the side of the square base.if the diagonal of the base of a square prism is 8,49 cm and the height is 12 cm
asked by Nomvuyiso 
home economics
10 careers that home economist can do.
asked by Olawepo 
Economics
The nominal interest rate is 12 percent per year in Canada and 8 percent per year in the United States. Suppose that the real interest rates are equalized in the two countries and that purchasingpower parity holds. A friend proposes a getrichquick
asked by Anonymous 
math ASAP
please explain how to use doubles plus 1 and doubles minus 1
asked by eduardo 
College Algebra
Which of the following is equivalent to (2x3)^2=25 ? A) 2x  3 = 5 B) 2x  3 = 5 C) 2x  3 = 5 and 2x  3 = 5
asked by Nolan 
statistics
Suppose that the population standard deviation (ó) for a normally distributed standardized achievement test (ACT) is 6. What would the standard error of the sample mean (óxbar) be if we were to draw a random sample of 36 test scores?
asked by Anonymous 
physics
A 30 kg child steps to a dock from a 60 kg boat,giving the boat an acceleration of 2m/s^2. Neglecting water Resistance, the acceleration experienced by the child is?
asked by Brittney 
5th Grade Math
Brad filled in 24 out of 40 words on a crossword puzzle. Stewart filled in 15 out of 25 words on a different crossword puzzle. Which correctly compares the fractions of the puzzles that Brad and Stewart completed. a)2/3>3/5 b)3/53/5 d)3/5=3/5
asked by Nicole 
mathematics
the london eye in england is the biggest big wheel in the world. It rotates with people on it so that they can get a view of the city of london from high up.there are 32 cabins attached
asked by nellicia 
physics
Name Two solid materials having very low linear expansivity ?
asked by anil 
physics
At what temperature is the density of water MAXIMUM ? Why does water have a maximum density ( Other liquids do not)
asked by anil 
Mathematics
6+m/3=18 What does m equal.
asked by Thomas 
chemistry
what would the equation be for: heating of iron III hydroxide crystals > iron III oxide + water vapor
asked by Kitsune 
physics
a cannonball is fired straight up at 60m/s. how long does the flight last?
asked by Maggie 
Math
AAA Company currently sells radios for $ 80 less 25 % . Their competitors are now selling the same product for $ 48 . AAA must offer an additional discount of _____ in order to meet their competitor's price. A single discount of _____ will give the same
asked by Anonymous 
Government US
15. What happened in 1998? b. The U.S. government had its largest budget deficit in history. c. The national debt was eliminated. d. The U.S. government shut down on three occasions. e. The U.S. government had a balanced budget. i eliminated all the wrong
asked by HM 
Algebra 2
42x^269x+20=7x^28
asked by Swaggg 
MATH PLEASE HELP
a) How much will the monthly payment on a five yr car loan that changes 8.1% interest (compounded monthly) if the amount borrowed is $12,000? b) How much total interest will be paid over the life of the loan for A i think it's 300?
asked by MathHelp 
5th Grade Math
Kate baked 3 pies for a family reunion. She cut each pie into 8 slices. the family ate 2/3 of the pies. How many slices of pie were eaten? And how would i show it if i had to show the pies?
asked by Nicole 
physics
Name Two solid materials having very low linear expansivity ?
asked by anil 
Mechanics
When a problem is statically indeterminate, what additional equations do you need to solve?
asked by Jessica 
alan b shepard
If charles wants the area of the trapezoid to be 65 square feet, what should be the measure of the second base?
asked by yasmine sonora 
calculation
Figure 1 represents the first 6 inches of a standard scale, or ruler. What is the distance represented between the lines indicated by the number 1 arrow?
asked by Anonymous 
early childhood education
1)People who understand the characteritics of children at various ages are more likely to develop activities and experiences for them that are a)developmentally appropriate b)within time constraints c)educational d)easy to do my answer is c 2)which of the
asked by eustace 
college physics
Human skin (choose all that apply) 1. emits radiation well. 2. absorbs radiation well. 3. does not emit radiation well. 4. does not absorb radiation well. 5. has an emissivity of 0.
asked by ice cream 
English
Could you please check these last sentence? 1) I believe people shouldn't be discriminated against just because of the colour of their skin. 2) In my opinion, we should all be treated as equal and should be given the same opportunities in life. 3) We
asked by Henry2 
American government
Outside lobbying does not include the use of: a. Campaign contributions to legislators who favor the interest group. b. Face to face exchanges between lobbyist and policymakers. c. Targeting group resources on key election races. d. The news media to
asked by Casey 
English
Could you check the following sentences on indirect speech, too? Thank you. By the way, how do you pronounce "Keruac", the surname of the famous American writer? 1)He invited me to go for a walk. 2)One of the guests apologized for breaking the vase. 3)He
asked by Henry2 
chemistry
3 moles each H 2 and I 2 are introduced into 1 lit box at temperature of 490'c. find concentration of H 2 in box at equilibrium is established?
asked by Anonymous 
Algebra 2 (Linear Programming)
A bicycle builder makes two models. The basic model requires 2 hours of frame construction, 4 hours of assembly, and 1 hour of finishing. The deluxe model requires 3 hours of frame construction, 3 hours of assembly, and 2 hours of finishing. Each day 36
asked by Peter 
American Government
The Federal Reserve System b. is run by a congressional committee. c. regulates only national banks. e. None of these answers is correct. I would say C..
asked by HM 
math
what is 33% of 61
asked by robert 
Math
How can I change 9 2/11 and 1 7/15 into improper fractions?
asked by Anonymous 
critical thinking please help
True or false: It is the case that if an argument is inductively correct then the conclusion is factually correct as well
asked by allie 
physics
Two children on racing bikes start from the same reference point. Child A travels 5.0m/s{right} and child B travels 4.5m/s{right}. How much farther from the point of origin is child A than child B after 5.os? pls I really really need help. I do not
asked by ted 
math
A person takes out a monthly installment loan of $2000 with an annual percentage rate of 13.0% if the person can afford no more than $70 per month, then which of the following terms are feasible? a) 8 months b ) 12 months c) 18 months d) 24 months e) 36
asked by MathHelp 
Math word problem
if the sum of three consecutive numbers is 72,what is tge largest number?
asked by kimi 
Math word problem
The length&breadth of a rectangle are (x+5)cm&3cm respectively.Find the length if the area of the rectangle is 42 cm2.
asked by kimi 
Math
What is the opening direction of the parabola x = –2y2. A.left B.right C.up D.down
asked by Alexis 
mba
Differentiate following with respect to x. (3x2 – 5ax + a2)4
asked by anil 
social studies
how do i get ahold of Ms. Sue?
asked by anonymous 
chemistry
What is the pH of a solution prpared by mixing 50.0 ml of .200 M HCLO4 with 10.0 ml of .100 M KOH
asked by Anonymous 
Understanding Paragraphs
Read each of the following paragraph and underline the topic sentence. Although color is generally the most conspicuous characteristic of a mineral, it is considered a diagnostic property of only a few minerals. Slight impurities in the common mineral
asked by ME 
Physics
A 2.4 kg object attached to a horizontal string moves with constant speed in a circle of radius R on a frictionless horizontal surface. The kinetic energy of the object is 95 J and the tension in the string is 315 N. Find R.
asked by Allie 
social studies
Tim is extremely anxious about a merger his company has in the works with a larger corporation. Over the next few weeks, he becomes more highstrung and demanding at work. His secretary and other subordinates grow anxious, although they know nothing about
asked by missy 
chemistry
.850L of .410M of H2SO4 is mixed with .800L of .200M of KOH. what is the concentration of sulfuric acid
asked by cox 
English please help!!!!!
In the book The Pearl By John Steinbeck. The rich and powerful usually dominate the poor and uneducated. In the book who was rich?who did they dominate? Please give me alot of information
asked by karan 
Finance
How much is a 9 month CD worth that started out at $1,000.00 at 4.40% worth after 15 years
asked by MJ 
social studies
Dante is given his first kitten. While holding it and feeling how soft her fur is, he puts her up to his face. In a playful gesture, the kitten taps his face with her paw and her nails scratch Dante's nose. Frightened, he drops the kitten. His decision to
asked by missy 
Finance  Required Return from a Beta
Hi, I need to learn how to explain and solve the following Finance problem. I don't understand this at all!!!, please show all solutions... Calculate the required return on an asset that has a beta of 1.25, when the expected return on the market portfolio
asked by Dantes 
Math
What is the answer to 7d+5=26, and 4t+1=25, 6r3=15. Thanks! (missing letter)
asked by Candy Corn 
Chemistry
A .1360 g sample of a mixture of magnesium and calcium carbonates when treated with HCL evolves 32.25 cm cubed of carbon dioxed measured dry at STP. Calculate the percent of magnesium carbonate in the mixutre.
asked by Rachel 
calculus  limits
Does the limit lim 2011t/3(squareroot)t+9 exist ? t0
asked by Whitney 
science
The lanthanide metal europium (Eu) forms a crystalline solid with a cubic unit cell of edge length 3.854 Å. The density of europium is 4.408 g cm3. The crystal structure of solid europium is a. bodycentered cubic b. simple cubic c. facecentered cubic
asked by ice cream 
chemistry  help
In sugar production, a process involves seeding of a supersaturated solution (sugar as solute) by adding 'ground sugar with few amounts of isopropyl alcohol'. My question is, why must the ground sugar be wetted with isopropyl alcohol? thanks in advance.
asked by Namie 
statistics
(Blood Test Problem) Suppose 100 people are waiting for blood test for a kind of disease. The probability that for one person the test result is positive equals 0.1. Two test methods are as follows: Method 1: Test one by one. Then we have to do 100 tests.
asked by Anonymous 
algebra
There are 50 questions to answer in a triva contest. Each player starts with 100 points. He or she earns ten points for each correct answer but will lose four points for each incorrect answer. Each player must answer all 50 questions. What is the fewest
asked by Anonymous 
arithmetic
Cheri's time in the bobsled race was 1 min, 38.29 sec. What is the word form and the value of the 9 in Cheri's time?
asked by reena 
business entr 101
gig started giganeers to earn a profit but by working hard and increasing his market shares , he was able to create jobs for others. this is an example of ________ concept.
asked by james 
physics
liquids in general expand on heating but when water in an ordinary glass flask with a narrow neck is heated the level is found to first fall and then rise. why?
asked by anil 
Math
Find b such that (8x+1/b)2=x has a solution set given by {3}. b =
asked by Abby 
English
What do you thing of an exercise on reporting verbs like the one that follows? I'm postin you just some examples. Put the following into the indirect speech using a suitable reporting verb. 1) "You took my money", he told Emma. 2) "I think you should do
asked by Henry2 
physics
A liquid expands on heating. Explain briefly how its density will change with rise in temperature
asked by anil 
math
12r4r=48
asked by Anonymous 
Math
Which is generally a better credit term? (a) 2 / 20 (b) 1 / 20 (c) 2 / 10 (d) 3 / 10 (e) 1 / 10 I am thinking its either b or e cause its 1 outta something and the others are 2 or 3 outta something so im not for sure how to figure out which is generally a
asked by Anonymous 
english
in the following sentence where should the comma's go.. By late fall the hours of sunlight have begun to dwindle as the shortest day of the year known as winter solstice approaches.
asked by Anonymous 
Physics
Show that there is no Brewster’s angle for s polarization.
asked by Bob 
physics
How do we compensate for thermal expansion /contraction in the construction of railway tracks?
asked by anil 
physics
Describe briefly how the volume of a given mass of water changes when it is cooled from 7 ^0 C to 1^0 C use the terms increase, decrease and maximum or minimum
asked by anil 
physics
What happens to the size of a hole in a metal plate when the plate is heated / cooled
asked by anil 
Socials
If I were to write an essay on the economic problems of developing countries, what should I write about? Please help. thanks.
asked by John 
Government US
13. Supplyside economics, during President Reagan’s administration, involved a. the supply component of the supplydemand equation. b. stressing the importance of tax cuts for businesses. c. stressing the importance of tax cuts for the wealthy. d. an
asked by HM 
Math
2(64d)= 259d plz show step by step
asked by kelly 
Math
regroup 2 tens, 2 ones; 1 ten, 12 ones Name the word that describes what was done to show the number in different ways.
asked by ashley 
math
what is solving mean
asked by memeh 
math
edward took a survey and found that 3 out of every 5 students in his class walk to school. if there are 25 students in his class, how many students can be expected to walk to school?
asked by queisha 
Health
2. This type of medicine increases alertness and is often used for people who suffer from ADHD. a. hormone b. antibiotic c. stimulant d. antacid C? 4. ______ are available overthe counter. a. Analgesics and antibiotics b. Hormones and stimulants c.
asked by mysterychicken 
math
A customer is buying a $100 drill and two $15 drill bit sets. The customer uses a gift card worth $50 to pay for a portion of their bill. How much cash will the customer pay (before taxes)?
asked by Anonymous 
math
How is dividing a decimal by a whole number the same as dividing a whole number by a whole number? How is it different?
asked by stephanie 
Math 117
write a challenging expression using exponents and scientific notation and then solve it for us.
asked by Katie A 
Conceptual Physics
you push a ton vehicle on level pavement with force of 250 N what is the vehicle's acceleration
asked by Anonymous 
Calculus STUCK
Dont know if the radicals will show up.. 2ã3(ã2432)ã2(5+7ã2) Can be expanded and simplified to the form p + qã2 + rã3. the value of p + q + r is_____ First I simplified the V243 and I got 9V3 2V3(9V32)V2(5+7V2) 18V94V35V27V2
asked by Untamed 
physics
liquids in general expand on heating but when water in an ordinary glass flask with a narrow neck is heated the level is found to first fall and then rise why ?
asked by anil 
physics
A liquid expands on heating. Explain briefly how its density will change with rise in temperature
asked by anil 
statistics
If a large number of people guess randomly on each of 100 items on a truefalse test, the mean would be expected to be ì=___*, and ó=__*. • What % of the examinees would be expected to get a score of 65 or >?
asked by Kathryn 
physics
Describe briefly how the volume of a given mass of water changes when it is cooled from 7 ^0 C to 1^0 C use the terms increase, decrease and maximum or minimum
asked by anil 
English
I'm including the questions to the answers. Thank you. 1)Her plan was to drug the soldiers guarding the king and then blame them for the king’s murder. 2)The real Macbeth was King Duncan’s general. He killed him in 1040 and ruled until 1057 when he was
asked by Henry2 
physics
What happens to the size of a hole in a metal plate when the plate is heated / cooled
asked by anil 
Chemistry
Factors that would affect recrystallization? *Temperature *Heating Rate *Pressure *Dust or hair that causes nucleation * Time (slow cooling) This is what I have, are there anymore? Thank you
asked by Jessie 
Government
The principle of selfgovernment emphasizes majority rule, whereas the principle of liberty emphasizes individual rights. These principles: a. Are universal and the foundation of all legitimate governments. b. Have no real meaning in practice. c. Are not
asked by Tonya 
english
I need to identify the adjective and adverb clause in this sentence. Humans aren't the only ones who have family trees?
asked by cayden 
algebra
what is (5x^24)+(3x^29)? thanks
asked by Dani 
Physics
A motorist travelling at 107 km/hr is being chased by a police car at 133 km/hr. If the police car starts from 3.0 km back, how long does it take to catch the motorist? Leave time in hours
asked by Jessica 
Government
All civil liberties are: a. So specific in nature that the courts have no difficulty determining how to interpret them. b. Conditional no right is absolute in practice because a right can conflict with each other rights and societys other other legitimate
asked by Tonya 
math
decompose 68 with using exponents
asked by amy 
US History
Can you please help me with these questions? After the Revolution, _______________ colonists left the states for other parts of the British Empire. George Washington’s forces were not permanently defeated by the British in the Battle for New York because
asked by Sheree 
calculus
express u(t)=Tant/1+Tant in F of G
asked by Kevin 
Math
12r4r=48 What is r?
asked by Chris 
Economics
The nominal interest rate is 12 percent per year in Canada and 8 percent per year in the United States. Suppose that the real interest rates are equalized in the two countries and that purchasingpower parity holds. What can you infer about expected change
asked by Anonymous 
Social Studies
What are some geographic features of the western states (California, Nevada, Oregon and Washington) besides mountains and valleys?
asked by Joey 
physics
If you are sitting at home in your room, the walls please help me pick one best answer of the followings. 1. emit visible light with a peak wavelength close to 0.5 micrometer. 2. emit thermal radiation in the near infrared with a peak wavelength close to 1
asked by ice cream 
PreCalculus
How do you solve this quadratic function? f(x) = −x2 + 10x
asked by Amie 
physics
Human skin (choose all that apply) 1. emits radiation well. 2. absorbs radiation well. 3. does not emit radiation well. 4. does not absorb radiation well. 5. has an emissivity of 0.
asked by ice cream 
college physics
If you are sitting at home in your room, the walls 1. emit visible light with a peak wavelength close to 0.5 micrometer. 2. emit thermal radiation in the near infrared with a peak wavelength close to 1 micrometer. 3. emit thermal radiation in the
asked by ice cream 
english
But consumers there showed little interest in sewing machines. prepostional phrase but consumers, but prepostion &consumer object? in sewing machines, in preposition and machines is the object? would that be correct?? thanks
asked by jill 
College Algebra
(2.2 x 10^3)(4.3 x 10^8) I get 9.46*10^5 is this correct?
asked by Katie A 
algebra
I do not understand how to solve this problem. 7  1/4 (j8) =6
asked by johnnie 
math
I cannot figure out how to solve this problem. 1/3 (x + 9) + 5 = x/3 + 8
asked by stephanie 
math
Help. I cannot solve this problem.\ 3(a+4)/9 = 2a  12
asked by randy 
algebra
Having a problem with solving this problem. 1 + 1/6p = 2(p + 5)
asked by maurice 
math:solving for an exponent.
I can't get the right answer, where am I going wrong? 7.0x10^9= (6.7x10^9)(2.72^r*3) 1.04 = 2.72^r*3 When I solve for this, I get ln (1.40) = 0.03922 then 0.03922 / 3 = 0.0130 So my r equals 0.0130 BUT the teacher says the answer is 0.05 = r *3 0.02 = r
asked by Sar 
Political views of Osvaldo Dragún
Was Osvaldo Dragún the author of "Historia del hombre que se convirtió en perro" a Peronist or was he against Peron?
asked by Cassie 
CalculusReiny
Im also doing this problem wrong... 2^3V4(2^3V54^3Vx) is equal to 16, then x is equal to... I simplified the 2^3V4 and got 64, and just got stuck.
asked by Untamed 
Calculus
53ã2 multiplied by its conjugate is... Its supposed to be 7, but I don't get how to do this, cause now im totally confused, i thought that the conjugate came when you were to rationalize a denominator... I did this... 15ã29ã4 15ã218
asked by Untamed 
11Anthropology
what was the connection between Louis Leakey and Dian Fossey and how did their goals become common?
asked by Rebecca 
math elementary
add. write the doubles fact used to solve each one. 0+1=1 6+7 =13 4+3=7 please explain how to use doubles plus 1 and doubles minus 1
asked by eduardo 
English
Are these two sentences possible? Thank you. I had my bedroom wallpapered and my child's bedroom whitewashed.
asked by Henry2 
Chemistry
How much energy (in kcal) is needed to convert 53.2 g of water at 55.0 C to steam at 100.0 C
asked by Martha 
physics
an 80 kg boy holding on to a helium balloon jumps off of a 20m tall building and floats to the ground. If the boant force of the balloon is 750 N upward, what is the boy's acceleration and final velocity just before he touches the ground?
asked by zahid 
english grammar. please help me
please help me to correct my resignation letter in correct format and grammar. thank you Dear Sir, I would like to inform you that I am resigning from my job effective on Oct.28, 2011 and it is extremely urgent I request to leave on Oct.30, 2011. So I hope
asked by jessie 
chemistry
How many grams of potassium permangate are needed to decolorized 1g of 2pentene in basic solution
asked by john 
Maths
*I'm a bit confused with this qn* Expand and Simplify 3(3xy)^2
asked by Gilda 
Math
What is the sum of 2 7/9 + 8/9?
asked by Arlene 
Simple Subjects
What is the complete subject and simple subject for the sentence "Many stories about the first Valentines ay exist
asked by Michael 
science
The sun shines down on a mirror. The angle between the incident rays of sunlight and the vertical is 60o. What is the angle between the reflected rays and the vertical? I think the answer is 60 am i correct
asked by Allison 
Understanding Paragraphs
Read each of the following paragraph and underline the topic sentence. First, language consists of a large number of symbols. The symbols that make up a language are commonly referred to as words. They are the labels that we have assigned to the mental
asked by ME 
Government US
Advocates of deregulation are primarily concerned with a. efficiency. c. externalities. e. political expediency. I would say E?
asked by HM 
chem
need help with the following conversion Calculate the mass in pounds of one gallon of water given that the density of water is .0 g/ml
asked by paula 
Calculus
Find the Domain of f(x)=sqrt(x^34x+1)
asked by Amy 
Business
The purpose of the General Agreement on Tariffs and Trade (GATT) is to
asked by Tara 
Science
What is the state/phase of sodium at 24 degrees celsius?
asked by Austin 
math ASAP
add. write the doubles fact used to solve each one. 0+1=1 6+7 =13 4+3=7 please explain how to use doubles plus 1 and doubles minus 1
asked by EDUARDO 
Language Arts
In the sentence ...The letter listed gifts for the wedding. Would listed be a physical action verb or a mental action verb?
asked by Brandi 
SOMEBODY HELP ME WITH MATH!!!!!!
A person wishes to borrow $20,000 and has the following options. One lending source offers the loan for 24 monthly payments at an annual percentage rate of 14%. The second source offers the loan for 18 monthly payments at an annual percentage rate of 16%
asked by MathHelp 
EnglishCommas.
This sentence is so confusing. For the life of me I couldn't find the thermos. Is it incorrect or correct?
asked by HM 
h
1. John has a book that measures 25cm x 30cm x 50cm and has a mass of 70g. What is the density?
asked by hug 
Finance
Calculating Beta... Hi I need help... I need to calculate Beta and Here is what is given. Please if you can explain how... Here's the given X's StdDev of monthly return = 12% with a 0.80 market correlation. The StdDev of Market monthly return is 6%
asked by Dantes 
Chemistry
How many milliliters of a 0.66 M HCl solution are needed to react completely with 1.9 g of zinc to form zinc(II) chloride?
asked by Anon 
Physics
How many minutes are there in 1 century?
asked by Titus Ninwillay 
Physics 1
A mass of 5.2 kg lies at the top of a frictionless incline. It is inclined at an angle such that the normal force on the mass is 29 Newtons. If the length of the incline is 78 meters and the mass is originally at rest at the top of the incline and then
asked by J 
trig
what is the hietgh difference between 2 walls 6 metres apart to get a 17.5 degree pitch
asked by Anonymous 
Math
The smallest real number in the solution set of 2x > 6 is 4. A) True B) False  The smallest real number in the solution set of 2x > 6 is 3. C) False  The smallest real number in the solution set of 2x > 6 is a number greater than 3. For example, 3.01 is
asked by Michelle 
4th grade Math
Miguel would like to figure out how many blocks he would need to build the 25th dragon without actually building it. He knows that there is a pattern to his hexagon dragons. Can you write a rule in words or a math expression that Miguel can use to figure
asked by minhtrang 
chemistry
The mass percentage of chloride ion in a 29.00 sample of seawater was determined by titrating the sample with silver nitrate, precipitating silver chloride. It took 42.42 of 0.2998 silver nitrate solution to reach the equivalence point in the titration.
asked by Cecelia 
physics
a rectangular barge with a flat bottom, has an area at the bottom of 4m squared. the weight of the barge plus its cargo is 5,000 newtons. what is the mass of the barge + cargo in kilograms?
asked by amanda 
Math
you want to buy a newly released CD . the CD costs $17. plus 6percent tax. write an expression that represents how much money in dollars you need to buy the CD . evaluate the expression
asked by Sage 
baseten blocks
think of Marie's model. for what could you trade one of the hundreds?
asked by amor 
Language Arts
In the sentence....The letter listed gifts for the wedding. Would listed be a physical action verb or a mental action verb?
asked by Brandi 
social studies
Adonis went to the Industrial Psychologist's office all confused and upset. Apparently, his new supervisor told him to stop making the peace sign in a sideways motion, saying it looked like a gangrelated gesture. Most likely, the psychologist advised the
asked by missy 
Math
regroup 2 tens, 2 ones; 1 ten, 12 ones Name the word that describes what was done to show the number in different ways.
asked by ashley 
probability and statistics
(Right Triangle Problem) Randomly cut a line segment into three pieces. What is the probability that these three pieces can form a right triangle?
asked by Anonymous 
physics
A lamp hangs vertically from a cord in a descending elevator that decelerates at 2.6 m/s2. (a) If the tension in the cord is 54 N, what is the lamp's mass? (b) What is the cord's tension when the elevator ascends with an upward acceleration of 2.6 m/s2?
asked by Rebekah 
Quantitative Methods
Read the “JET Copies” Case Problem on pages 678679 of the text of the Quantitative Methods Book. Using simulation estimate the loss of revenue due to copier breakdown for one year, as follows: 1. In Excel, use a suitable method for generating the
asked by Ashley Johnson 
math
7x(10x)=58
asked by Anonymous 
PreMedical
Can someone please tell me what the stndardized employability skills? (Standardized as in used globally)
asked by Anonymous 
physics
How do we compensate for thermal expansion /contraction in the construction of metal pipes for carrying steam?
asked by anil 
math
Put counter in left cloud
asked by Anonymous 
Math
Which of the following is equivalent to (2x3)^2=25 ? A) 2x  3 = 5 B) 2x  3 = 5 C) 2x  3 = 5 and 2x  3 = 5
asked by Christian 
science
a can potatoes has the following data: recall 49system carbs=22 fat is 10 grams and protien is 13 find the percentage of each if the calories = 275
asked by paul 
Calculus
show lim x>3 (sqrt(x)) = (sqrt(c)) hint: 0< sqrt(x)sqrt(c)= (xc)/(sqrt(x)+sqrt(c))
asked by DJ 
Language
What is Historical Fiction? Define Historical Fiction
asked by Kennel 
physics
How do we compensate for thermal expansion /contraction in the construction of steel bridges?
asked by anil