Questions Asked on
November 5, 2014

physics
while cruising along dark stretch of highway at a speed of 25 m/s you see that bridge ahead has been washed out. you apply the breaks to and come to a stop in 4.0 sec construct the position vs time graph and acceleration vs time graph and motion graph for
asked by mathew 
English
Which of the following sentences both a direct and indirect object? A. My psychology professor has written several books. B.My pyschology prefessor is one of the best lecturers on campus. c.my psychology professor requires his students to quite a bit
asked by Anonymous 
Calculus I
Any help on how to solve this? The range of a projectile launched at an angle θ from the ground with velocity v0 is given by R(θ) = [v0^2 sin 2(θ)]/9.81 . If the projectile is launched at an angle of θ = π/6, use differentials to approximate the
asked by Anonymous 
calculus
How do I use the product rule to find the derivative of the following. y=(x+1)(3square root x+7) y'= Please help
asked by Duane 
English
1. He is an actor. 2. She is an actor. 3. She is an actress.  Is Sentence 2 grammatical?
asked by rfvv 
college statistics
how many ways can a 3 person committee be formed from 12 people
asked by robin 
English
1. I left my cell phone at home, and suddenly I realized it. 2. Suddenly I realized that I had left my cell phone at home.  Does #1 mean #2? Are the tenses used in each sentence grammatical?
asked by rfvv 
arithmetic
if the internal diameter of a cylindrical iron piep is 2.8 cm . If the pipe is melted uniformly by 1 mm then it formed a cylindrical rod ,find the diameter of the new rod?
asked by Anonymous 
English
1. If it had not been for your call, I would have been late for school. 2. But for/Without your call, I would have been late for school. 3. Had it not been for your call, I would have been late for school. 4. If you had not called me, I would have been
asked by rfvv 
statistics
can you explain this to me please? Consider the binomial distribution where n = 11 and p = 0.05. Find the mean and standard deviation of this binomial distribution.
asked by MissPatte 
pe
"Being an athlete takes more brains than brawn. It takes time and effort. It takes endurance and commitment. It takes an athlete who can stay in the air for 2.5 seconds while shooting a goal; an athlete who knows which laws of physics keep him there."
asked by nn 
statistics
Waiting times at a doctor office are normally distributed with a mean of 35 minutes, and a standard deviation of 10 minutes. What is the chance a patient would have to wait over 50 minutes?
asked by Cecy 
Probability
What is the probability of passing a 10item multiple choice quiz, if there are 4 choices, A to D for every question, and if the passing mark is 8/10, assuming that you guessed the answers to all the questions?
asked by Mely 
physics
the speed of a train is reduced uniformly from 10 m/s to 5 m/s while covering a distance of 150 m. What is the acceleration of the train? how much farther will it travel before coming to rest, assuming the same acceleration ?
asked by Anonymous 
physics
A truck moves with a constant acceleration and covers a distance between two points 180 apart in 10 seconds. The velocity as it passes the second point is 30 m/s. Whats the acceleration of the truck ? whats the velocity in the first point ?
asked by Anonymous 
Chemistry please help
A 1.516 M soltion is made by dissolving 1.570 g of the compound in 0.2238 mol of water. Determine the molar mass and apparent molecular formula of the compound.
asked by Anonymous 
geometry
we have atriangleABC given: segment AB and AC are congruent BE is the median to AC CD is the median to AB PROVE THAT AG is the perpendicular bisector of BC?
asked by kiko 
statistics
What would be a nondirectional hypothesis for this statement. Older drivers are safer than younger ones. I have this not sure if it is correct. There will be a difference between older and younger drivers.
asked by angela 
chemistry
what is the procedure for determining the boiling point of 1 M solution of sugar,urea,glucose,NaCl,BaCl2,AlCl3
asked by mrunal 
English
Is this a good persuasive essay ? If not can you help me change it? Everyday people come in contact with illegal aliens in some way or form, but they don’t know it. It is often hard to tell because illegal immigrants look just like the average person.
asked by Sarah 
Algebra
Y = 1/2 (2x^3  3x + 5)
asked by Don't know how to solve 
Physics
someone please answer these Physics Q answers no explanation 1 What is the opposite force to gravity 2 an example of a contact force 3 an example of a noncontact force 4 What effect does ‘mass’ have on inertia 5 two examples of forces that could slow
asked by Ashlee 
trigo
a bicycle has a front wheel with a diameter of 24cm and a back wheel with a diameter of 60cm. through what angle does the front wheel turn if the back wheel turns through 12 radians
asked by anna 
Math
Show me how to work out 131/2
asked by Begging 
Grammar.Usage. and Micanics
Which words in this sentence are an independent clause? The forest that they are uncovering once held flowers that fell during a fire and were cooked until they became charcoal. A. that they are uncovering B. that fell during a fire C. until they became
asked by Brianna Garrett 
Algebra
I have a graph that shows on the Y  axis Just the word speed (no numbers given) And on the x  axis is time (no number given) The graph itself shows a decline in speed But then the line goes up sharply I am suppose to write a scenario for the graph PlEASE
asked by Don't know how to solve 
science
which of these is an one of aluminum?
asked by vikas rana 
physics
A copper sheet of thickness 2.13 mm is bonded to a steel sheet of thickness 1.41 mm. The outside surface of the copper sheet is held at a temperature of 100.0°C and the steel sheet at 24.3°C. a) Determine the temperature (in °C) of the coppersteel
asked by Anonymous 
physics
An aircooled motorcycle engine loses a significant amount of heat through thermal radiation according to the StefanBoltzmann equation. Assume that the ambient temperature is T0 = 24.5°C (297.65 K). Suppose the engine generates 11.5 hp (8.58 kW) of power
asked by Anonymous 
physics
A cryogenic storage container holds liquid helium, which boils at 4.20 K. Suppose a student painted the outer shell of the container black, turning it into a pseudoblackbody, and that the shell has an effective area of 0.791 m2 and is at 2.95·102 K. What
asked by Anonymous 
physics
It has been said that sometimes lead bullets melt upon impact. Assume that a bullet with an initial temperature of 301 K receives 73.9 % of the work done on it by a wall on impact as an increase in internal energy. (The melting point of lead is 601 K, the
asked by Anonymous 
Algebra
I have a graph that shows on the Y  axis Just the word speed (no numbers given) And on the x  axis is time (no number given) The graph itself shows a decline in speed But then the line goes up sharply I am suppose to write a scenario for the graph PlEASE
asked by HELP! 
Physics
Half life of radium is 44 years.The sample will reduce to 50% of its orignal value ater how many years?
asked by M.Junaid 
verb in each of the following sentence
I get up 6 o clock. Tell me tences
asked by ashiyani dhan 
MATH
Use the matrix method to solve the system of equations 2x + 4y = 8 and 6x + 3y = 3.
asked by lOVEJOY 
Bio
A locomotive train is on its way from Chicago, IL to Madison, WI. The trip is said to last 3.15 hours. When the train arrives in Madison the conductor notices it actually took them 3.26 hours. The train company prides itself on always having its trains to
asked by Lilo 
World History (Ms. Sue)
How did the Schlieffen Plan contribute to the outbreak of World War I?
asked by Victoria 
World History Answer Check (Ms. Sue)
What was the effect of total war on ordinary citizens? A: Because of total war, ordinary citizens underwent rationing of goods.
asked by Victoria 
Math
2 fractions equal to9/9
asked by Noor 
statistics
Siegel found that elderly people who owned dogs were less likely to pay visits to their doctors after upsetting events than were those who didn’t own pets. Similarly, consider the following hypothetical data. A sample of elderly dog owners is compared to
asked by marie 
English
Compare and contrast the topics and themes of writers from the Americas and European writers.
asked by Hannah 
algebra
What is the sum of the first 700 consecutive odd numbers?
asked by Sherri 
Science
brain central nervous system human being nerve tissue neurons Organize the parts of this body system in the CORRECT order according to the levels of organization in a multicellular organism, simplest to most complex..
asked by Anonymous 
Math
Betsy is making a flag, she can choose three colors from red, white, blue, and yellow. how many choices does Betsey have?
asked by Ali 
Finance
If you open an IRA at a commercial bank and deposit $1000 in the account per year, how much will be in the account after 20 years if the funds earn 7%?
asked by Anonymous 
chemistry
A weather balloon is filled with 0.295 m3 of helium on the ground at 18 °C and 756 torr. What will the volume of the balloon be at an altitude of 10 km where the temperature is 48 °C and the pressure is 0.14 atm?
asked by jun 
math
Tammy wants to get change for 30c. The only coins she can get are quarters, nickels and dimes. How many different ways can she get 30c using only these coins?
asked by ashley 
physics
A parachutist descends vertically a distance of 380 m at a constant speed of 2.9 m/s. The mass of the parachutist is 70 kg. What is the work done on the parachutist by the net force during this descent?
asked by Jina 
Math, algebra
Can someone help me with functions? I'm studying for my test tmrw and I need help
asked by Belle 
physics
The rope of a swing is 3.1 m long. Calculate the angle from the vertical at which a 77kg man must begin to swing in order to have the same kinetic energy at the bottom as a 1430kg car moving at 1.05 m/s (2.35 mi/hr).
asked by Jina 
MATH
Does this tale represent a function? x y 0 1 1 2 2 3 3 3
asked by :) 
physics
What is the work done by the two forces together in moving an object a distance of d = 5 m as shown in the diagram? The magnitude of each force is 19 N. Diagram: (The two forces, F1 and F2, have the same magnitud but F1 is 45º over de the x axis, and F2
asked by Jina 
Science
In an atom, electrons ____. a. are located in the nucleus b. travel outside the nucleus c. are paired with neutrons d. are always in the same place in an atom
asked by Katt<3Bob\by 
MATH
Does this tale represent a function? x y 0 1 1 2 2 3 3 3
asked by :) 
Thermodynamics
12 kg of water in an insulated container is at 30 C. Initially, only 18 percent of the water is in the liquid phase. An electric heater, connected to a 120V source and 9 A, is used to heat the system. Determine the time required to vaporize the entire
asked by Anonymous 
physics
A staging that weighs Wstaging supports a painter weighing 350 N. The reading on the left scale is 600 N and the reading on the right scale is 240 N. What is the weight of the staging?
asked by Anonymous 
Chemistry
Cs(s)+H2O(l)→ ? i thought it was H2+CsOH but the computer says that's wrong.
asked by Anonymous 
Math
Consider the function y = –2(x – 12)^2 + 18. a) What is the axis of symmetry of the graph of the function.(1 mark)
asked by Alex 
psychology
Infants generally sit up without support at a.9 months b.3 months c.6 months d.birth
asked by Anonymous 
Computing Python (simpleish stuff)
Hi, I'm working on this piece of code: numLaptops = 7 laptopCost = 599.50 price = numLaptops * laptopCost print("Total cost of laptops: $%.2f" % price) But the question wants me to explain the output if I put 2.5 instead of .2, 8.2 instead of it and 3.1
asked by James 
science, chemistry
OBJECTIVE: to find out which of two indicators, methyl orange or phenolphthalein, gives more reliable and consistent results in the titration of H3PO4 with NaOH. REQUIREMENT: (1). Phosphoric acid solution of unknown concentration. (2). Standard NaOH
asked by elijah 
Math
My locker combination has three digits. None of the digits are 0. What is the probability that the first digit of my locker combination is less than 3?
asked by Becca 
Math
Seth had a bag with 4 green, 5 yellow, and 6 blue marbles in it. If Seth draws a yellow marble and does not replace it, what is the probability that the second marble he draws is yellow?
asked by Becca 
chemistry
Calculate the percent deviation from ideal behavior for 0.85 mol of CO2 gas in a 1.20 L container at 45.0°C, which exerts a pressure of 19.2 atm.
asked by Tamika 
mecancs
a projectile is fired with an inteal speed of 53m/s.find the angle of projection such that the maximum hight of a projectile is equal to its horizontal range.
asked by yibeltal 
physics
If a 648 N body on a carpeted surface has a μs of 0.86 and a μk of 0.68, what amount of force will be required to start dragging the body across the floor? Make sure to report your answer with the correct number of significant figures
asked by Linda 
physics
A 755 N diver drops from a board 10.0m above the water's surface.Find the diver's speed 5.00 m above the water's surface. Then find the diver's speedjust before striking the water.
asked by hannah 
Algebra
The formula v=8square root of h gives the relationship between velocity, v (in feet per second and height, h (in feet). What is the maximum velocity of a roller coaster that is 203 feet high? Can the question be solved using the equation t^22t11=0?
asked by Anonymous 
chemistry
A student obtained an average PV value of 42,000 in column (f) of the data table. If the syringe had been able to be adjusted to a volume of 35.0 mL, what would the pressure be inside the flask?
asked by john 
MATH HELP!!!!!ONE QUESTION!!!!!!!!!!!!!!!!!!!!!!!!
which equation represents the relationship shown in the table below? x  0  1  2  3  __________________ y  3  1  1  3  a.) y = x  3 b.) y = x  3 c.) y = 2x  3 d.) y = 2x + 3
asked by Surferlover 
Civics
What motivated the Founding Fathers to include the phrase "We the People" in the Preamble of the U.S. Constitution? So far I have: The Founding Fathers did this because they wanted to show that the Preamble of the U.S. Constitution was made by the people
asked by Baxie 
math Help!!!!!!
What is square root 25/square root 64? A. 5/8 B. 12/32 C. Square root 5/square root 8 D. 5/8 C? Thanks
asked by callie 
Art
In the painting Bourgeois by Alfred Jacob Miller,about an early American settler, it would likely inspire a writer to create a story based on all the following historic information except A. the clothing worn by the individuals B. the background scenery
asked by anyone 
algebra
What is the maximum velocity of a roller coaster when the height is 203 feet. Can the problem be solved by factoring the following equation? t^2 2t11=0?
asked by Anonymous 
physics
Speed in air is 340m.s Siren of ambulance emits waves of frequency 980Hz A detector at the scene measures the frequency as 1050Hz h0w d0 I w0rk this 0ut 1050 = 340 / 340  vs (980) 1050 = 1  vs (980) 1050 = vs (980) 1050 + vs = 980 1050/1050 + vs = 980 /
asked by angel 
English
I have to create a piece of descriptive writing about a good day at a beach, but I am unsure on how to describe the atmosphere of the beach. Please help! Here is what I have so far: It's the morning of somerset beach. Seagulls haver over waiting for
asked by anonymous 
math Help!!!!!!
If a number is not a rational number, then it is A. An integer B. An irrational number C. A whole number B? Thanks
asked by Callie 
Chemistry
Determine which ions have noblegas configurations: Cd2+ Ru3+ P3− As3− Ag+ Zr4+ Thanks for any help. (I tried As3 and Zr4+, but that was wrong, so maybe i'm just missing one.
asked by GDogg 
Art
How are artists and writers most similar? A.both tell stories through their creations. B.both have trouble getting published. C. both are censored in what they can produce. D. both use mathematics to create their products. Is the answer A?
asked by anyone 
US Gov't
Which Roman contribution to political theory was adapted by the Founding Fathers?
asked by Selena 
math Help!!!!!!
George has a square sandbox in the backyard. The sandbox has an area of 160 square feet. To the nearest foot, what is the length of one side of the sanbox?(Hint: A=s^2 A. 11 ft B. 12 ft C. 40 ft D. 80 ft. Is the answer B? Thanks
asked by Callie 
Math
Hey People!! I need the answers to these questions really bad!!! OK so here we go.... Which side lengths form a triangle that is similar to triangle ABC? 30, 21,45 20, 14, 28 40,30,60 17,20,25 Find the missing length for the pair of similar figures. 1.125m
asked by Trinity 
math Help!!!!!!
Which of these nonterminating decimals can be converted into a rational number? A. 0.626226222... B. 0.020220222... C. 0.123123123... D. 0.898998999... C?
asked by Callie 
Art
In the picture of the cheshire cat up in the tree on the movie Alice in Wonderland what does the artist's work in this image help the reader understand? A. how the trees looked in winter B. the idea of a cat fading away C. what the cat is looking at D.
asked by anyone 
English
I know with a dependent clause in front of the sentence, then an independent clause separated by a conjunction I use a comma. If u have two independent clauses with a conjunction do I use a comma. Example The class will take a trip when school is over. It
asked by Karen 
Physics
If a 648 N body on a carpeted surface has a μs of 0.86 and a μk of 0.68, what amount of force will be required to start dragging the body across the floor? Make sure to report your answer with the correct number of significant figures am I doing this
asked by sarah 
Math
A rectangle is to have a perimeter of 18m. the graph below shows the relationship between the area of the rectangle and its width. What is the width of the rectangle with the largest area?
asked by Anonymous 
Calculus
If 2300 square centimeters of material is available to make a box with a square base and an open top, find the largest possible volume of the box. Volume = i know it's in cubic centimeters. but i'm getting my values wrong
asked by Alessandra 
Math Help
Triangle ABC has coordinaes A(1,4); B(3,2); and C(4,2). Find the coordinates of the image A'B'C' after a reflection over the xaxis. My answer A'=(1,4) B'=(3,2) C'= ( 4,2) Am I correct? Thank you.
asked by Callie 
Calculus
A fence 3 feet tall runs parallel to a tall building at a distance of 7 feet from the building. What is the length of the shortest ladder that will reach from the ground over the fence to the wall of the building?
asked by Alessandra 
Calculus: Help Me
The manager of a large apartment complex knows from experience that 120 units will be occupied if the rent is 294 dollars per month. A market survey suggests that, on the average, one additional unit will remain vacant for each 7 dollar increase in rent.
asked by Alessandra 
Math
Jill and Chad grew sunflowers in each of their gardens. The tallest sunflower in Jill's garden was 360cm. The tallest sunflower in Chad's garden was 4 meters. Whose sunflower was taller? Prove your answer.
asked by Amy 
Math Help
Harriet needs to ship a small vase. The box she will use has a volume of 216 cubic inches. If the side lengths are the same, what is the length of each side of the box. My answer Square root of 216=14^2=196 The length of each side of the box is 14 iches.
asked by Callie 
Math
Angela and Doreen each want to by the same comb. Angela still needs 58cents to by the comb and Doreen still needs6cents. If they were to combine their money, they still do not have enough. What is the most the comb could cost?
asked by Meena 
English
1. Shall we go where there is a shop? 2. We can get where there is water. 3. We have to walk where we can take a rest. 4. We drove where we can see many kinds of trees.  Are the sentences all grammatical? Would you correct errors? Thank
asked by rfvv 
biology
What does the word cycle tell you about the chemical reactions of the Calvin cycle?
asked by Lucas 
Physics
If a 648 N body on a carpeted surface has a μs of 0.86 and a μk of 0.68, what amount of force will be required to start dragging the body across the floor? Make sure to report your answer with the correct number of significant figures Is this correct?
asked by sarah 
Math
Chris has a square garden with an area of 38.a m squared. He decreases the length of each side by 1.7 m to make a smaller garden. What is the perimeter of the smaller garden. {Hint find the length of each side of the bigger garden first, then decrease the
asked by Cindy 
math
Wanda is shopping for a pet carrier for her cats one small Carrie I can hold 240 ounces her cat weighs 12 pounds can the carrier hold the cat
asked by Angie 
algebra
Solve for v: 62.7 = 3.65 v^2 + 0.0875 (v^2 / 0.09)
asked by Misaki 
math
an average sized dog weighs about A. 15 grams B. 50 grams C. 5,000 grams D. 15,00 grams I don't know the answer, please help
asked by Anonymous 
Math Help
Which of the images above represents a proof of the Pthagorean Theorem? Explain your choice, and them explain how the figure proves the Phythagoream Theorem. Figure A The hypotenuse of the right triangle is 64 units^2 One leg is 36 units^2 The bottom leg
asked by Callie 
statistics
Suppose you are given data from a survey showing the IQ of each person interviewed and the IQ of his or her mother. That is all the information that you have. Your boss has asked you to put together a report showing the relationship between these two
asked by Ann 
physics
An ice hockey puck slides along the ice at 15 m/s . A hockey stick delivers an impulse of 4.8kg/m/s causing the puck to move off in the opposite direction with the same speed. what is the mass of the puck?
asked by sam 
History
1. Which of the following groups would most likely not want to remain loyal to Great Britain during the preRevolutionary period? (1 point) Scots from St. Andrew’s parish government officials Anglican ministers Indian traders 2. Which was a benefit
asked by HELP MEEEEE 
physics
In a Little League baseball game, the 145 g ball enters the strike zone with a speed of 13.0 m/s. The batter hits the ball, and it leaves his bat with a speed of 21.0 m/s in exactly the opposite direction. 1. what is the magnitude of the impulse delivered
asked by sam 
physics
A small, 250\g cart is moving at 1.50m/s on a frictionless track when it collides with a larger, 4.00kg cart at rest. After the collision, the small cart recoils at 0.890m/s . What is the speed of the large cart after the collision?
asked by sam NEED HELP! 
physics
A man standing on very slick ice fires a rifle horizontally. The mass of the man together with the rifle is 70 kg , and the mass of the bullet is 10 g If the bullet leaves the muzzle at a speed of 500 m/s, what is the final speed of the man?
asked by sam NEED HELP! 
science
what is the similarity of renewable and inexhaustible resource?
asked by Anonymous 
chemistry
Is the number of moles of an element reacted equal to the number of moles of an element produced? Let's say for example, 5g of copper. So the molar mass of copper (according to my textbook in which I need to use those numbers) is 63.55g/mol So 5g /
asked by J 
Math Help
Which of the images above represents a proof of the Pthagorean Theorem? Explain your choice, and them explain how the figure proves the Phythagoream Theorem. Figure A The hypotenuse of the right triangle is 64 units^2 One leg is 36 units^2 The bottom leg
asked by Callie 
Physics Science
Mary mixes 5.00 lb of water at 200°F with 7.00 lb of water at 65.0°F. Find the final temperature of the mixture. Specific Heat of water is 1.00 BTU/lbs°F
asked by Ben 
lee
Which of these shows the correct balanced halfreaction for the following? The reaction takes place in acidic solution. C2O42–(aq) → CO2(g)
asked by sad 
Physics  Method Of Mixtures
Mary mixes 5.00 lb of water at 200°F with 7.00 lb of water at 65.0°F. Find the final temperature of the mixture. Specific Heat of water is 1.00 BTU/lbs°F
asked by Ben 
physics
no idea how to do this problem A kid at the junior high cafeteria wants to propel an empty milk carton along a lunch table by hitting it with a 3.0g spit ball. If he wants the speed of the 40g carton just after the spit ball hits it to be 0.30 m/s, at what
asked by Levin Need help for test! 
physics
A firecracker in a coconut blows the coconut into three pieces. Two pieces of equal mass fly off south and west, perpendicular to each other, at 25 m/s. The third piece has twice the mass as the other two. 1. What is the speed of the third piece? 2. What
asked by Levin Need help for test! 
Chemistry, Check 1 easy question!!!
What type of bond will a metal cation most likely form? I think its Iconic bond
asked by 1 Question! 
math
Two numbers have a sum of 32. If one of the numbers is  36, what is the other number?
asked by Rella 
chemistry
K(s)+NH3(g)→ ?
asked by Anna 
Math
Whats 9+10?
asked by Anonymous 
algebra
A bacteria population splits in 3 every 4 hours. There were initially 8 bacteria in a dish, how many will there be after 12 hours?
asked by Ariel 
Math
Is this the same a(bc)=(ab)(ac)
asked by Molly 
History
which answer below best describes why georgia was slow to rebel against great britain? a georgia's many exposed frontiers made it vulnerable to indian attacks. b most georgians liked to royal governor and felt he helped georgia become econmically
asked by HELP MEEEEE 
math
what does rose mean/fell
asked by mary 
math
360/4 = c
asked by mia 
Elementary manth
Jose said that the square root X=3 has no solutino since the square root is a negative, is this true. I think it does has a solution
asked by Molly 
Physics
A runner moving at a speed of 7.7 m/s rounds a bend with a radius of 21 m. What is the centripetal acceleration of the runner? My teacher doesn't explain anything very well and I don't understand how to figure it out.
asked by Crystal 
Help please
is a(bc)=(ab)(ac)
asked by Molly 
Math HELP!
Estimate the value of square root 60 to the nearest integer. A. 7 B. 8 C. 9 D. 10 Is the answer B? Thanks
asked by Callie 
Physics
A 250 g piece of tin at 99°C is dropped in 100 g of water at 10°C. If the final temperature of the mixture is 20°C, what is the specific heat of the tin?
asked by Ben 
Math
At the water park, Beth and Amy decided to race each other down a waterslide. Amy won by .25 seconds. If Beth's time was exactly 7.8 seconds, how long did it take for Amy to down the slide?
asked by Rella 
Math HELP!
Sylvia made a poster shaped like the triangle shown below. The hypotenuse is 26in. one like is is 24 in. and the bottom leg is blank. What is the length of the the third side of the triangle? A. 10 in. B. 12 in. C. 14 in. D. 16 in. Is the answer D? Thank
asked by Callie 
physics
A 22N force, parallel to the incline, is required to push a certain crate at a velocity of 6.1 up a frictionless incline that is 55° above the horizontal. The mass of the crate is:
asked by Ahmad 
Physics Science
How many grams of water at 20°C are necessary to change 800g of water at 90°C to 50°C?
asked by Ben 
prealgebra
The number of cells in a lab sample triples every 4 hours. Write an expression to represent the number of cells after 24 hours. I think it might be x cubed times 6
asked by Dana 
Math HELP!
The length of the hypotenuse of a right triangle is 15 ft. The length of one leg is 9 ft. Find the length of the other leg. A. 6 ft. B. 21 ft. C. 12 ft. D. 18 ft. Is the answer C? Thank you
asked by Callie 
Math
Chris has a square garden with an area of 38.4 m squared. He decreases the length of each side by 1.7 m to make a smaller garden. What is the perimeter of the smaller garden. {Hint find the length of each side of the bigger garden first, then decrease the
asked by Brianna 
Business Math
I'm wondering if I got this question right. A car salesman receives a commission of 10% of the selling price of a car. Find the commission the salesperson earns for selling a car for $12,300. The answer I got was $12,3000.
asked by Bradley 
Math
Joan picked 9 pounds of strawberries in one hour. How long does she take to pick 72 pounds of strawberries?
asked by Carla 
Math HELP!
Find the length of the hypotenuse of a right triangle with legs of 12 ft and 16 ft. A. 11 ft B. 18 ft C. 20 ft D. 28 ft Is the answer C? Thank you
asked by Callie 
organic biochemistry
Calculate the number of moles of ZnCl2, in 100. mL of 0.600M solution.
asked by hannah 
math
Beth and Lewis buy the same amount of fish pellets. If Beth feeds her goldfish 14 fish pellets each day, a container of pellets will last 20 days. If Lewis feeds his goldfish 8 fish pellets each day, how many more days will the container of pellets last
asked by Carla 
Chemistry Physics
How many grams of water at 20°C are necessary to change 800g of water at 90°C to 50°C?
asked by Albert 
Math HELP!
Ted determined that the length of the diagonal of his squareshaped lawn was square foot 83 feet. Which is the closest to the length in feet of the diagonal of Ted's lawn? A. 8 B. 9 C. 41 D. 166 Is the answer B? Thank you
asked by Callie 
Help please Math
is a(bc)= ( ab) (ac)
asked by Dawn 
math
At a school fair, a fifthgrade class sold 25 liters of orange juice. The orange juice was sold in cups containing 200 milliliters and 300 milliliters. An equal number of cups containing 200 milliliters and 300 milliliters were sold. How many cups of
asked by Carla 
Economics
Mallory's total income last year was $24,000, but she could deduct $12,000 for various reasons. If she had to pay 15 percent of her taxable income in federal income tax, what was her total tax payment?
asked by Taner 
physics
A 74.0 kg ice skater moving to the right with a velocity of 2.14 m/s throws a 0.12 kg snowball to the right with a velocity of 24.2 m/s relative to the ground. (a) What is the velocity of the ice skater after throwing the snowball? Disregard the friction
asked by Dequan Davis 
math
what is equal to 3.7
asked by Anonymous 
Math
A gardener grows roses, tulips, and sunflowers in an 18acre public garden. This year, she wants to plant twice as many acres of sunflowers as acres of tulips. She also wants wants to plant 6 more acres of roses than of sunflowers. How many acres of each
asked by Mira 
Math
Carson drives to school the same way each day, and there are two independent traffic lights on his trip to school. He knows that there is a 30% chance that he will have to stop at the first light and an 80% chance that he will have to stop at the second
asked by Show Steps Please 
math
jasmine mixes 1250 milliliters of syrup with twice as much water to make lemonade. she then pours the lemonade equally into 15 glasses.How much lemonade does each glass contain.
asked by Carla 
Global terrorism
What effect has the 1991 gulf war had on current day terrorism ?
asked by Maria 
physics
A man skis down from the top of a hill 1500.0 m high, starting from rest. If he loses 50% of his initial mechanical energy to friction during his descent, what is his speed in m/s at the base of the hill?
asked by fun 
math
Mikhail used 220 inches of wire to make this figure. this figure is made up two identical triangles,a 15 inch by 12 inch rectangle and a square of side 19 inches.Whatis the length of one side of each triangle if allthe sides of the triangles are equal in
asked by Carla 
chemistry
Using Table 9.4, calculate an approximate enthalpy (in kJ) for the reaction of 1.02 g gaseous methanol (CH3OH) in excess molecular oxygen to form gaseous carbon dioxide and gaseous water.
asked by john 
chemistry
Use Table 9.4 to calculate an approximate enthalpy or heat of reaction for the combustion of one mole of methane gas (CH4) to form gaseous H2O and CO2. What Volume (in L) of methane is needed to produce 3287 kJ of heat for methane gas at 11 oC and 3.40 atm
asked by john 
math Help!!!!!!
Which of these nonterminating decimals can be converted into a rational number? A. 0.626226222... B. 0.020220222... C. 0.123123123... D. 0.898998999... Is the answer C?
asked by Callie 
Math
Chris has a square garden with an area of 38.4 m squared. He decreases the length of each side by 1.7 m to make a smaller garden. What is the perimeter of the smaller garden. {Hint find the length of each side of the bigger garden first, then decrease the
asked by Anonymous 
physics
Two blocks connected by a string are pulled across a rough horizontal surface by a force applied to one of the blocks, as shown. The acceleration of gravity is 9.8 m/s Block 1 has a mass of 5 kg while block two has a mass of 8 kg. A string is tied to the 8
asked by Anonymous 
Math, please help
A matte of uniform width is to be placed around a painting so that the area of the matted surface is equal to the area of the painting. If the dimensions of the painting are 15 cm and 10 cm, find the width of the matte. The answer is supposed to be 2.5 cm
asked by Isabelle 
Physics
A simple pendulum of length 2.00m is made with a mass of 2.00kg. The mass has speed of 3.00 m/s when the pendulum is 30 degrees above its lowest position. What is the maximum angle away from the lowest position the pendulum will reach? What is the speed
asked by Alex 
statistics
Waiting times at a doctor office are normally distributed with a mean of 35 minutes, and a standard deviation of 10 minutes. 25% of the patients have to wait less than how many minutes?
asked by Cecy 
Physics
A girl coasts down a hill on a sled, reaching a level surface at the bottom with a speed of 6.7 m/s. The coefficient of kinetic friction between runners and snow is 0.038, and the girl and sled together weigh 603 N. The acceleration of gravity is 9.8 m/s2
asked by Kayla Johnson 
ingles
homework:unscramble the words on writing division exampie(the family,mother)
asked by Anonymous 
Physics
A large flatbed truck hauls a heavy wood crate as shown. The crate is not tied down and simply rests on the metal bed of the truck. Find the maximum acceleration the truck can have if the crate is not to slide along the truck bed. (Static friction is 0.5
asked by Sara 
Physics
A mass of 2.0kg traveling at 3.0 m/s along a horizontal plane hits a relaxed spring 20cm away from it. The coefficient of kinetic friction is 0.3. The mass is slowed to zero velocity when the spring has been compressed. By how much the spring has been
asked by Max 
physics
how do I solve for angular momentum if the weight its 700 g and the angular v is (1m=r, 120rmp). I get 12.56 for the v. But i don't know how to solve for the monentum. Also is my v correct?
asked by Levin Need help for test! 
chemistry
Does one mole of copper have the same mass as one mole of iron? Explain.  I say no since: 1 mol Cu = 63.55g/mol 1 mol Fe = 55.85g/mol So 1 mol of copper is 63.55g, while 1 mol of iron is 55.85g. So they have a different mass because their molar masses are
asked by J 
Math
Sara has to buy two tops from her pocket money. She can choose two colors from pink, red, white, and black. How many different color combinations does she can choose?
asked by Minisha 
Physics
An object of mass 1.00 kg is attached to a vertical spring with spring constant 100 N/m. The object is held at rest in a position such that the spring is stretched upward a distance 1.00 cm beyond its undisturbed length. If the object is released, how far
asked by Joe 
Math Help
Which of these nonterminating decimals can be converted into a rational number? A. 0.626226222... B. 0.020220222... C. 0.123123123... D. 0.898998999... Is the answer C? I think that C is the answer because, A,B, and D are nonrepeating decimals Rational
asked by Callie 
Statistics
a Rollercoaster's auditors estimate that the average daily loss from those illegally riding without tickets is at lease (greater or equal) $295, but wants to determine the accuracy of this statistic. The company researcher takes a random sample of losses
asked by Calyssa 
Math
Sara has to buy two tops from her pocket money. She can choose two colors from pink, red, white, and black. How many different color combinations does she can choose? a. 9 b. 6 c. 2 d. 4
asked by Minisha 
Math HELP!
Write a translation rule that maps point D (7,3) onto point D' (2,5) Explain your answer I have no idea how to do this can someone please help me.
asked by Callie 
chemistry
3Cl2 +6KOH>KClO3 +5KCl =3H2O write a conversion factor that could be used to convert between moles od potassium hydroxide and moles of potassium chlorate
asked by Wendy 
Math
Create a scenario in which you must use linear functions to solve.
asked by M 
Physics Help Please!
A block of mass is moving along the horizontal frictionless surface with a speed of 5.70 m/s. If the slope is 11.0° and the coefficient of kinetic friction between the block and the incline is 0.260, how far does the block travel up the incline? Show step
asked by Kimberly 
L.A.Help!!!!!!
Which of the following words is similar in meaning to the word passively? A. lazily B. uninterestingly C. Inactively D. emotionally Is the answer D?
asked by Callie 
math
We are two integer brothers apart by 7 on the number line.if you take 5 times of me and add 2 times my brother you'll get 42. Can you find my value? I believe there are two answer. ... first answer is 5x + 2(x+7)=42 therefore x=4 and 5(8)+2(1)=42 Both
asked by devon 
math
A car travel 300 miles on 15 gallons of gas, what is the unit rate?
asked by simone 
Statistics
Daily water intake (including water used in drinks such as coffee, tea and juice) for Canadian adults follows a normal distribution with mean 1.5 litres and standard deviation 0.31 litres. (d) Using the 689599.7 Rule, approximately 95% of samples of 22
asked by C 
Chemistry
Calculate the rate constant, k, for the reaction 2H2O2(l) > 2H2O(l) + O2(g) Using the rate,  0.02 mol/L.min H2O2, and the initial concentration, [H2O2] = 0.5 mol/L Question 7 options:  25/min 25/min  0.04/min 0.04/min
asked by Tamera 
Language arts Help
Which persuasive technique is used in the following senence? Four out of five people prefer cantaloupe to honeydew melon. A. Repetition B. Appeals to reason C. Appeals to emotion D. Appeals to authority Is the answer b?
asked by Anyone 
Math
Steve plants ten trees every three minutes. If he continues planting at the same rate, how long will it take him to plant 2500 trees? Express your answer as a decimal in terms of hours.
asked by Rella 
math
a tub takes 4 minutes to fill and holds 28 gallons of water. At this rate, how long would it take to fill a bathtub that held 63 gallons of water?
asked by tina 
Math help? It's really quick!! :D
Is this a function? Why or why not? x y 0 1 1 2 2 3 3 3
asked by :) 
Intro to Accounting
Jimenez Enterprises issued 8%, 9year, $2,486,400 par value bonds that pay interest semiannually on October 1 and April 1. The bonds are dated April 1, 2014, and are issued on that date. The discount rate of interest for such bonds on April 1, 2014, is 8%.
asked by Jose 
math? Ms. Sue please help!
Is this a function? Why or why not? x y 0 1 1 2 2 3 3 3
asked by :) 
Math
3y=15 Solve for y=mx+b form y=5?? How will I put that in y=mx+b
asked by M 
Math
5x2y=0 Solve for y
asked by M 
Math
x+3y=9 Solve for y y=3?
asked by M 
Math
y(1)=1/2(x2)
asked by M 
English
What could the main idea of Through The Tunnel be, in a sentence?
asked by Anonymous 
ecnomics
4.During the energy crisis of the 1970s, and again in the last 5 years, Congress bemoaned the “price gouging” and “windfall” profits of the major oil companies. In the 1970s Congress imposed an “excess profits tax” on these companies. It did
asked by Cynthia 
math
trina works after school and on weekends. she always works three days each week. this week she worked 2 3/4 hours on monday, 3 3/5 hours on friday and 5 1/2 hours on saturday. next week she plans to work the same number of hours as this week, but will work
asked by fiona 
math
a picture framer has a board 10 1/12 feet long. the framer notices that 2 3/8 feet of the board is scratched and cannot be used. the rest if the board will be used to make small picture frames. each picture frame needs 1 2/3 feet of a board. at most, how
asked by fiona 
math
5g6 for g= 2
asked by paul winters 
Chemistry
if you are given the equation 2NO(g)+o2(g)>2NO2 and you are given the volume of NO is 150mL. how do you find what the volume of O2 is required (at the same pressure and temperature)?
asked by Gene 
Chemistry
A person’s blood alcohol (C2H5OH) level can be determined by titrating a sample of blood plasma with a potassium dichromate solution. The balance is 16H+ (aq) + 2Cr2O72 (aq) + C2H5OH (aq) 4Cr3+ (aq) + 2CO2 (g) + 11H2O (l) If 35.46 mL of 0.05961 M
asked by Wilfredo 
Math HELP!
Which persuasive technique is used in the following senence? Four out of five people prefer cantaloupe to honeydew melon. A. Repetition B. Appeals to reason C. Appeals to emotion D. Appeals to authority Is the answer b?
asked by Anyone 
math
Evan told his class that the people in his family have 14 legs altogether.Quinton said that there must be 7 people in Evan's family.Is Quinton correct?Explain.
asked by lakevia 
Six Grade Math
Mary makes 2 gallons of punch for her party. How many cups of punch did she make? Is 32 cups the answer?
asked by Javonte 
Algebra II
Hi! I really need help with my homework, but I don't have anybody to ask. The problem asks me to find the vertex, focus, and directrix of the parabola: x^212x48y+276=0. All help is apprectiated! Thank you.
asked by Kayla 
Chemistry
In the reaction 2HgO(s) > 2Hg(l) + O2(g) we measure the evolution of gas to determine the rate of reaction. At the beginning of the reaction (at 0 minutes), 0.02 L of O2 is present. After 20 minutes the volume of O2 is 0.36 L. What is the rate of
asked by Tamera 
Physics Science
How many grams of water at 20°C are necessary to change 800g of water at 90°C to 50°C? so its setup like (20*1.00)*(9050)+(20*1.00)*(9050) = 1600g?
asked by Digby 
chemistry
a 111.4mg ore sample containing iro with acid , filtered and diluted to 200.0ml in volumetric flask. a 1000ml aliquot is transferred to a 100.ooml volumetric flask containing hrdroxylamine hydrochloride, sodium acetate and 1,10 phenanthroline and diluted
asked by grey 
Math
Carl has 5/6 yard long, 1/4 yard long, and 2/3 yard long of cable wire. After Carl used 1 yard how much cable wire would he have?
asked by Anias 
Math
A jet flies at an altitude of 52,800 feet. What is the height of the jet in miles? I need help with this problem please
asked by Olivia 
Physics
a point 22 caliber rifle fires a 1.8 gram bullet at a 400m/s into a block of wood. If the bullet penetrates to a depht of 10cm find the desaceleration of the bullet. The force exerheted on the bullet, and the time.
asked by Guelmy 
Math
Find the payment necessary to amortize a 8% loan of $1700 compounded quarterly, with 11 quarterly payments?
asked by Mike 
Physics
A block of mass 0.45 kg can slide over a frictionless horizontal surface. It is attached to a spring whose stiffness constant is k = 18 N/m. The block is pulled 38 cm and let go. a)What is its maximum speed? b)What is its speed when the extension is 30 cm?
asked by Samantha 
Vertex, Focus, & Directrix of Parabolas
Find the Vertex, Focus, and Directrix of the parabola: x^2 12x48y+276=0 Thank you so much
asked by EMilee 
English
Determine success by measurement or other objective method such as the time taken. What does that mean
asked by M 
physics
A 1000 kilogram car rolling on a horizontal surface has speed v= 45 kilometer per hour when it strikes a horizontal coil spring and is brought to rest in a distance of 2.2 meters. What is the spring stiffness constant of the spring?
asked by Dee 
Math
i am thinking a number the number in the tens is less than the number in ones.
asked by Anonymous 
Algebra 2
The sum of two numbers s 96, and their difference is 17. What is the larger of these two numbers ?
asked by Bree 
Math
An ostrich. An run at a rate of 50 miles every 60 minutes. At this rate how long will it take an ostrich 15 miles?
asked by Micah 
Science
Effects of insecticide on aquatic animals?
asked by Anonymous 
chemistry
what is a sigma bond
asked by grey 
physics
A ball is shot out of a spring and into a hollow ballast which then swings upwards 2.5 cm. The ball has a mass of 0.10 kg, the ballast has a mass of 0.50 kg and the spring constant is 500 N/m. How fast was the ballastball system moving immediately after
asked by Whitney 
please help, math question
A matte of uniform width is to be placed around a painting so that the area of the matted surface is equal to the area of the painting. If the dimensions of the painting are 15 cm and 10 cm, find the width of the matte. The answer is supposed to be 2.5 cm
asked by Isabelle 
Trig
A playground slide starts 107cm above the ground and is 250cm long. What angle does the slide make with the ground? Give the answer to the nearest degree.
asked by Anonymous 
Chemistry Physics
A steel pipe 8.25 m long is installed at 45°C. Find the decrease in length when coolants at 60°C pass through the pipe
asked by Digby 
Math
You are measuring walnuts for banana walnut oatmeal and a spinach and walnut salad. You need 3/8 cup of walnuts for the oatmeal and 3/4 cup of walnuts for the salad. You have a 1/4cup scoop. Describe two different ways to find how many scoops of walnuts
asked by Jessica 
Algebra
On the opening night of a play at a local theatre, 895 tickets were sold for a total of $10,514. Adult tickets cost $14 each, children's tickets cost $11 each and senior citizen tickets cost $8 each. If the combined number of children and adult tickets
asked by Jolie 
Science, Physics
A 800kg safe is 2.3m above a heavyduty spring when the rope holding the safe breaks. The safe hits the spring and compresses it 52cm.What is the spring constant of the spring?
asked by Adrian 
Maths
Two poles 13m and 18m high stand upright on a playground if their feet are 12m apart find the distance between their tops
asked by Mona 
please help! algebra
find the next two numbers in the pattern: 12, 60, 300, 1500
asked by anon 
composition II
• What role should outside sources play in our writing? How much of an essay you write should be your original work and how much should be from a source? How can having too much material from other sources possibly lead to plagiarism?
asked by Dee365 
Chemistry
Assuming equal concentrations and complete dissociation, rank these aqueous solutions by their freezing points: Li2SO4 K3PO4 LiNO3
asked by Dustin 
physics
A cat slides off the table. Immediately before the cat leaves the table,what is the vertical velocity?
asked by Roberto 
algebra help please
2200 + (480t) what is the answer when t = 5 t = 10 t = 15 t = 20
asked by nonny 
Chemistry
How many grams of chlorine gas are needed to make 5.40 x 10 6 g or a solution that is 1.40 ppm chlorine by mass?
asked by Dustin 
math
Carl shades a row in the multiplication table the product in the row are all even the ones digits in the products repeat 0,4,8,2,6 what row does carl shades
asked by dolores 
composition II
• Where are the two main places in a paper that you should use APA Style to document sources? Are there any tools you can use to help with APA Style citations?
asked by Dee365 
statistics
Suppose that the ages of students at a particular university average 26 years with a standard deviation of 2.8 years. Consider the sampling distribution of the sample mean age of students in a sample of n = 49. The standard deviation of the sampling
asked by Anonymous 
Physics
A rubber ball with a mass of 0.130 kg is dropped from rest. From what height was the ball dropped, if the magnitude of the ball's momentum is 0.710 kg · m/s just before it lands on the ground?
asked by Nicco 
math
A sludge pool is filled by two inlet pipes. One pipe can fill the pool in 14 days and the other pipe can fill it in 22 days. However, if no sewage is added, waste removal will empty the pool in 35 days. How long will it take the two inlet pipes to fill an
asked by anonymous 
chemistry
Let's say for example I have 5g of copper in a beaker. Mass would be 5g + mass of beaker. If I add any given amount of water to the beaker containing the copper, that will change the mass of the beaker containing the copper. Am I correct so far? So then if
asked by J 
physics
A watermelon falls off of a balcony 14 meters high. How fast is it moving immediately before it reaches the ground? a increases with time b is 0 m/s c remains constant d decreases with time
asked by Roberto