Questions Asked on November 15, 2014

A 50.0 g sample of lead starts at 22 degrees Celsius and is heated until it absorbs 8.7 X 10^2 of energy. Find the final
1. 1 answer
2. asked by Princess
3. 2,117 views
7 nails has a of 50g how many nails have a mass of 1/2kg
1. 1 answer
2. asked by Debbie
3. 1,046 views
a total of 400 tickets were sold for the school play, they were either adult tickets or student tickets. there were 50 fewer
1. 4 answers
2. asked by denise
3. 2,841 views
he (drink, drank, drunk) all the ice tea.
1. 3 answers
2. asked by Anonymous
3. 433 views
What is the authors main purpose in "Why Leaves Turn Color in the Fall"?A. She wants to persuade readers to stop pollution. B.
1. 43 answers
2. asked by blue
3. 11,168 views
Johhny left a glass of milk on his bedside table for a week, and it spoiled. At the end of the week, the glass contained a
1. 19 answers
2. asked by Callie
3. 2,928 views
Find the inversef(x)= -2+7
1. 1 answer
2. asked by maria
3. 334 views
Which chemical equation shows that no atoms are lost during a chemical reaction?A. 8Fe+s8-->Fe5 B. 8Fe+8S8--> 8FeS C.
1. 15 answers
2. asked by Callie
3. 4,746 views
Which sentence is a main idea of "Why Leaves Turn Color in the Fall"?A. Leaves stop making chlorophyll add summer ends. B.
1. 11 answers
2. asked by blue
3. 4,299 views
In what ways is Bohr's model of the atom similar to and different from Thomson's model?
1. 4 answers
2. asked by Laura
3. 2,127 views
a city is served by two newspapers-the Tribune and the Daily News. Each Sunday a reader purchases one of the newspapers at a
1. 0 answers
2. asked by tracy
3. 752 views
Which sequence of processes must occur for an atom of carbon to go from a human to a car?A. Respiration, photosynthesis,
1. 22 answers
2. asked by Callie
3. 3,671 views
Why does the author organize"The Seasons Curmudgeon Sees the Light,"as she does? By Mary C. CurtisA. to contrast fall weddings
1. 5 answers
2. asked by blue
3. 2,219 views
consider the 666 N weight held by two cables shown below. The left hand cable and tension 530 N and makes an angle of theta2
1. 1 answer
2. asked by sally
3. 764 views
A student made a list of reactions:Fireworks exploding Paper burning Cellular respiration How should the student title his or
1. 33 answers
2. asked by Callie
3. 4,202 views
Which of the following would likely be part of an ionic bond? Choose two that would apply.A.K+1 B.Cl2 C.F-1 D.Ne Are the answers
1. 14 answers
2. asked by blue
3. 5,658 views
A 20.0% (w/w) aqueous solution of NaOH has a density of 1.125 g/cm^3. What is the molarity (M) of this solution?
1. 1 answer
2. asked by bekah
3. 675 views
Which of the following demonstrates that reactants and profucts are chemically different?A. Zn+2HCI-->2HCI+Zn B.
1. 3 answers
2. asked by Callie
3. 1,506 views
There is a polynomial which, when multiplied by x^2+2x+3, gives 2x^5+3x^4+8x^3+8x^2+18x+9. What is the polynomial?
1. 2 answers
2. asked by Trish Goal
3. 494 views
The polynomial f(x) has degree 3. If f(-1)=15, f(0)=0, f(1)=-5, f(2)=12, then what are the x-intercepts of the graph of f?
1. 1 answer
2. asked by Trish Goal
3. 586 views
Lisa studied the models of three carbon nuclei shown below.She listed information about the carbon nuclei in a table. Name
1. 12 answers
2. asked by Callie
3. 3,391 views
Which civilization had the most fortifications?A. Cycladic B. Minoan C. Mycenaean D. Harappan I think it's C.
1. 1 answer
2. asked by Pat
3. 1,043 views
The arrows in the image show the direction in which carbon is moving. Which proces of the carbon cycle is indicated?The picture
1. 6 answers
2. asked by Callie
3. 3,103 views
How many electrons can be described by the quantum numbers n = 2, l = 1, ml = -1?a.) 2 b.) 14 c.) 6 d.) 10 e.) 0 I thought it
1. 3 answers
2. asked by Annie
3. 8,435 views
Assuming 100% dissociation, calculate the freezing point and boiling point of 0.700 mol of AgNO3 in 1.00 kg of water.
1. 1 answer
2. asked by Anonymous
3. 2,974 views
You are creating a carbon cycle poster. Which object could you add to the image as another example of combustion of fossil
1. 4 answers
2. asked by blue
3. 2,338 views
Which of the following is true about the atom shown Choose two that apply.The picture shows one big red one in the middle with
1. 11 answers
2. asked by Callie
3. 5,366 views
What is 8 and 2 over 20 minus 6 and 8 over 208 2 - 20 8=? 2=? 20=?
1. 1 answer
2. asked by Andrea
3. 395 views
In the Doric order, which of the following are alternating panels in the frieze, which are sometimes sculpted?A. Metopes B.
1. 2 answers
2. asked by Pat
3. 2,165 views
In regards to decisions affecting foreign policy, how did Jefferson’s actions as President validate or contradict his
1. 1 answer
2. asked by Julie
3. 649 views
The heat of neutralization of HCl (aq) by NaOH is -55.9Kj/mol H2) produced. If 50ml of 1.6M NaOH at 25.15 celsius is added to
1. 1 answer
2. asked by Annie
3. 1,345 views
helpthe positions of two particles A and B are P1 (3,4) in meters and P2 ( -3, -4 ) meters respectively. Meters the position A
1. 1 answer
2. asked by David
3. 466 views
In what ways is Bohr's model of the atom similar to and different from Thomson's model?I still need someone to help me.. I don't
1. 1 answer
2. asked by Laura
3. 1,358 views
The maker of an automobile advertises that it takes 11 seconds to accelerate from 15 kilometers per hour to 90 kilometers per
1. 1 answer
2. asked by Jessica
3. 925 views
So for this question: The number of bacteria present in a culture is given by the following model B=1000e^0.276t; where t= time
1. 1 answer
2. asked by Micki
3. 1,287 views
Condense the expression to the logarithm of a single quantity.5lnx-6ln(x+2)
1. 1 answer
2. asked by Fiona
3. 568 views
Give your mom a day off.------------------------- In this sentence,is 'a day off' a noun phrase? Or is 'a day off' is made up of
1. 1 answer
2. asked by rfvv
3. 411 views
PROJECT FILE ON POLLUTION
1. 2 answers
2. asked by OMDUTT
3. 404 views
1. Tired, he went to bed earlier.2. Being tired, he went to bed earlier. 3. As he was tired, he went to bed earlier. (Are they
1. 1 answer
2. asked by rfvv
3. 469 views
What is the molarity of a solution prepared by dissolving 820. g of sodium phosphate, Na3PO4, in water and diluting to 2.89
1. 1 answer
2. asked by Anna
3. 564 views
1. The hospital is for certain people.2. He has a certain problem. 3. He has a sure problem. 4. He is certain that the boy is
1. 1 answer
2. asked by rfvv
3. 403 views
I do not understand this. Can you please explain it to me and how I am suppose to get the answer?Find the probability that a
1. 1 answer
2. asked by MissPatte
3. 454 views
1. Even if the sun were to rise in the west, I would never change my mind.2. Even though the sun were to rise in the west, I
1. 1 answer
2. asked by rfvv
3. 1,281 views
Determine the moment of inertia for three children weighing 64.0 lb, 44.0 lb and 83 lb sitting at different points on the edge
1. 0 answers
2. asked by Ashely
3. 441 views
A force,F = (6x̂ + 7y hat) N, is applied to an object at a point whose position vector with respect to the pivot point is r =
1. 0 answers
2. asked by Ashely
3. 444 views
the joseph company has a stock issue that pays a fixed dividend of 3.00 per share annually. Investors believe the normal
1. 0 answers
2. asked by betty
3. 435 views
The speed of a transverse wave on a stretched string can be changed by adjusting the tension ofthe string. A stationary wave
1. 1 answer
2. asked by Clement
3. 746 views
find the value of the variable that would make the equation true..1.) 5x = 15 2.) -3x = 21 3.) 9x = -27 4.) -7x = -12 5.) 2/3 x
1. 5 answers
2. asked by Anonymous
3. 1,537 views
is it reasonable to expect that these models will change again in time? Explain.Like the bohr diagram and etc;
1. 3 answers
2. asked by Laura
3. 2,772 views
Two brothers, Sam and Jim, were fighting over the division of their ancestral property. After ten years of legal battle, a
1. 6 answers
2. asked by Matt
3. 1,067 views
find the area of the region bounded by the parabola y^2= 16x and its latus rectum
1. 0 answers
2. asked by Tony
3. 566 views
a man 5 ft tall casts a shadow of 6 ft. The angle of elevation f the sun is?
1. 1 answer
2. asked by will
3. 1,631 views
Give yoiur mother the day off on Mother's Day. Let your mother sleep in.--------------------- In the last sentence, what is the
1. 2 answers
2. asked by rfvv
3. 496 views
1. When everyting is ready, bring it to her bedroom carefully.2. When everyting is ready, take it to her bedroom carefully.
1. 1 answer
2. asked by rfvv
3. 421 views
object 380 ft above surface of globe. Horizon is 65.3 degrees from object.What is circumference of globe?
1. 0 answers
2. asked by Bruce
3. 425 views
1. finally I could decide on my future job.2. Finally I could decide my future job. -------------------- Are both grammatical?
1. 2 answers
2. asked by rfvv
3. 442 views
1. I'm so happy with my job.2. I'm so satisfied with my job. (Are both the same in meaning?) 3. We dress up and shout "Trick or
1. 2 answers
2. asked by rfvv
3. 589 views
A cylinder containing 15.0 L of helium gas at a pressure of 165 atm is to be used to fill party balloons. Each balloon must be
1. 4 answers
2. asked by Aaqib Zaman
3. 2,117 views
For a gas sample whose total pressure is 740 torr, what are the partial pressures if the moles of gas present are 1.3 mol N2,
1. 1 answer
2. asked by Aaqib Zaman
3. 1,212 views
A sample of a smoke stack emission was collected into a 1.25 L at 752 mm Hg and analyzed. The analysis showed 92% CO2, 3.6% NO,
1. 1 answer
2. asked by Aaqib Zaman
3. 731 views
A sample of a smoke stack emission was collected into a 1.25L tank at 752 mm Hg and analyzed. The analysis showed 92% CO2, 3.6%
1. 0 answers
2. asked by Aaqib Zaman
3. 675 views
One way to generate oxygen is to heat potassium chlorate, KCLO3 (the other product is potassium chloride). If 386 mL of oxygen
1. 1 answer
2. asked by Aaqib Zaman
3. 1,331 views
N2O5 is an unstable gas that decomposes according to the following reaction:2N2O3(g) ---> 4NO2(g) + O2(g) What would be the
1. 2 answers
2. asked by Aaqib Zaman
3. 3,574 views
In an experiment, a mixture of two gases occupies a volume of 3.00 L at a temperature of 22.5 degree centigrade. The mixture
1. 2 answers
2. asked by Aaqib Zaman
3. 1,080 views
if the square root of twice a number is diminished by three, the result is 5. what is the number?
1. 2 answers
2. asked by JUN
3. 1,011 views
√ ̅m+3 + √ ̅m-2 =5How do you call equation like that?
1. 1 answer
2. asked by JUN
3. 395 views
the measure of the sides of a rectangle are ( 4 √ ̅2 - √ ̅3cm) by ( √ ̅6 + 2 cm). Find the measure of its diagonal.
1. 1 answer
2. asked by JUN
3. 768 views
solve √ ̅m+3 + √ ̅m-2 =5(show step by step process of solving the equation)
1. 1 answer
2. asked by JUN
3. 498 views
find the area of the region bounded by the parabola y^2= 16x and its latus rectum
1. 2 answers
2. asked by Tony
3. 2,403 views
A-b is 50m and b-c is 120 calculate the total distance
1. 1 answer
2. asked by Lesedi
3. 409 views
Ms Sue, can you help me with psychology again? T_T
1. 1 answer
2. asked by John Doe
3. 386 views
A-b is 50m and b-c is 120 calculate how long it will take to ride fro A to C as he rides at 5m per sec?
1. 1 answer
2. asked by Happy
3. 397 views
A-b is 50m and b-c is 120 determine the displacement from a-c
1. 1 answer
2. asked by Refiloe
3. 357 views
A car accelerates at 1.6m.sec along a straight road for 10s then moves at a constant speed for 20s calculate speed after the
1. 1 answer
2. asked by Jeniffer
3. 462 views
A transport company purchased a truck for $40,000. The operating cost was $2,000 per month, with average revenues of $4,000 per
1. 0 answers
2. asked by Anonymous
3. 594 views
barry had a pan of brownies 2/5 full his friends came over and ate 1/4 how much is left
1. 1 answer
2. asked by Jaheim
3. 414 views
Kuhn (2000) wrote that “Thus, to study memories is to study much of what we are interested in under the headings of cognition
1. 1 answer
2. asked by Sharon
3. 645 views
The tomato is dropped. What is the velocity, v , of the tomato when it hits the ground? Assume 91.9% of the work done in Part A
1. 2 answers
2. asked by maxime Jones
3. 2,078 views
A circular pond has radius r. The area of a pond whose radius is 6m more than r is 4 times the area of the first pond. The
1. 1 answer
2. asked by Anonymous
3. 1,032 views
A wheel is free to rotate about its fixed axle. A spring with constant k = 290 N/m is attached to one of its spokes a distance r
1. 0 answers
2. asked by edward
3. 835 views
The complete combustion of ethanol, C 2 H 5 OH (FW = 46.0 g/mol ), proceeds as follows:What is the enthalpy change for
1. 0 answers
2. asked by maxime Jones
3. 1,002 views
The polynomial function defined byf(x) = 1 − x + x^2 − x^3 + ... + x^16 − x^17 may be written in the form f(y) = a_0 + a_1
1. 0 answers
2. asked by Frank
3. 512 views
Last week, Roger suddenly quit his job. He told his family he had decided tolearn carpentry. He purchased a truckload of wood
1. 1 answer
2. asked by Anonymous
3. 592 views
What is the velocity of a car that move 5 metre in 5 seconds
1. 1 answer
2. asked by utsman
3. 347 views
What is the inverse of each of the functions defined by the following equations, if the inverseexists. If the inverse does not
1. 0 answers
2. asked by Keith
3. 798 views
Can a trend line go on forever if so why
1. 0 answers
2. asked by M
3. 323 views
Evaluate3/(1! +2! +3!) + 4/(2! +3! +4!) + 5/(3! +4! +5!) + ... + 2001/(1991! +2000! +2001!).
1. 0 answers
2. asked by Carl
3. 380 views
Convert 8.690909 . . . into a single fraction using infinite geometric series.
1. 1 answer
2. asked by Alecx
3. 615 views
A sign containing 50 m^2 of printed material is required to have margins of 4 m at the top andbottom and 2 m on each side. a.
1. 0 answers
2. asked by Darone
3. 484 views
If a pond can support up to 10, 000 fish, the rate of growth of the fish population is jointlyproportional to the number of fish
1. 0 answers
2. asked by Francis
3. 712 views
The volume V (r) of a sphere is a function of its radius r. Suppose a spherical snowball with aradius 2 f t started to melt so
1. 2 answers
2. asked by Renzo
3. 1,164 views
If 9560 J of energy were absorbed by 500. g of ice at 0.0 °C, what would be the final temperature?Can someone walk me through
1. 1 answer
2. asked by K
3. 1,042 views
Inflation Exam1) You are developing a data base for Army tracked combat vehicles and you are normalizing the data base to base
1. 4 answers
2. asked by karen
3. 581 views
The following table shows the summary statistic of the cholesterol levels of two groups of men in 2014.From 25 to 40 years old,
1. 0 answers
2. asked by poon
3. 507 views
find the inverse.f(x)=√3+4
1. 1 answer
2. asked by maria
3. 315 views
A 50.0 g sample of lead starts at 22 degrees Celsius and is heated until it absorbs 8.7 X 10^2 of energy. Find the final
1. 1 answer
2. asked by Jiskha Help
3. 677 views
Calculate the amount of heat absorbed when 58 g of steam at 117◦C are completely converted to ice at −32.5◦C.Specific
1. 2 answers
2. asked by Q
3. 815 views
Here is the scenario.-------------------------------------- Are Smarties as addictive as drugs? A new research study proves that
1. 5 answers
2. asked by John Doe
3. 876 views
cuboid dimension 3in x 12in x 4inwrapped present has two loops of ribbon around it. each loop goes completely around the box
1. 1 answer
2. asked by Jashua
3. 484 views
What is the exchange of gases between the lungs and the blood?A. Internal respiration B. Posterior respiration C. External
1. 8 answers
2. asked by Night
3. 734 views

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