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2011
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Questions Asked on March 5, 2011

Related Rates:Gas is escaping from a spherical balloon at the rate of 2ft^3/min. How fast is the surface area shrinking (ds/dt)
1. 9 answers
2. asked by Hannah
3. 10,816 views
A 65-kg boy is sitting on a seesaw 0.6 m from the balance point. How far from the balance point should a 40-kg girl sit so that
1. 2 answers
2. asked by bhavana
3. 3,347 views
Which of the following statements is true for an elastic collision?A. Both momentum and kinetic energy are conserved. B.
1. 1 answer
2. asked by Joe
3. 3,194 views
A spiral spring is compressed so as to add U units of potential energy to it.When this spring is instead stretched two-thirds of
1. 2 answers
2. asked by Joe
3. 2,964 views
A force of magnitude 7.50 N pushes three boxes with masses m1=1.30kg m2=3.20kg, and m3=4.90kg. find the magnitude of the contact
1. 1 answer
2. asked by Betty
3. 2,526 views
how do I prepare 50% and 70% ethanol from 95% ethanol?
1. 2 answers
2. asked by michelle
3. 2,519 views
Determine the delta H for the following reactionC3H4(g) + 2H2(g) --> C3H8(g)
1. 2 answers
2. asked by belle
3. 2,514 views
5. A tin nucleus has charge +50e. Find the potential V at a distance of 10-12 meters from the nucleus and the potential energy U
1. 3 answers
2. asked by ike
3. 2,421 views
Which of the following statements is true for an inelastic collision?A. Both momentum and kinetic energy are conserved. B.
1. 1 answer
2. asked by Joe
3. 2,364 views
When the thigh is fractured, the patient's leg must be kept under traction. One method of doing so is a variation on the Russell
1. 1 answer
2. asked by nancy
3. 2,158 views
The molecules water (H2O) and methane (CH4) have similar masses, but methane changes from a gas to a liquid at -161°C. Water
1. 1 answer
2. asked by Anonymous
3. 2,142 views
Write an equation that forms a system of equations with x + y = 4, so that the system has:a) No solution b) Infinitely many
1. 3 answers
2. asked by Rebecca
3. 2,098 views
The peak value of the ac current in a circuit is 6.0 A, and peak value of the ac voltage applied to the circuit is 8.9 V. What
1. 2 answers
2. asked by YANA
3. 1,935 views
You drop an egg from rest with no air resistance.As it falls, a. only its momentum is conserved. b. only its kinetic energy is
1. 1 answer
2. asked by Joe
3. 1,820 views
Two lumps of clay having equal masses and speeds, but traveling in opposite directions, collide and stick together. Which of the
1. 2 answers
2. asked by Joe
3. 1,791 views
1)You have opened your own word-processing service. You bought a personal computer, and paid $5,000 for it. However, due to the
1. 2 answers
2. asked by Michael
3. 1,705 views
Two carts, one twice as heavy as the other, are at rest on a horizontal frictionless track. A person pushes each cart with the
1. 2 answers
2. asked by Joe
3. 1,642 views
8. Determine the acceleration of a proton in an electric field of 500 N/C. How many times is this greater than that due to
1. 2 answers
2. asked by ike
3. 1,637 views
A picture measures 20 cm x 25 cm. The width of the matting and frame at the top and bottom is 5cm. What should be the dimensions
1. 3 answers
2. asked by Jenny
3. 1,596 views
A water sample saturated in CaF2 has Ca2+ of 115 ppm (115g Ca2+ per 10^6g water sample). What is the F- ion content of the water
1. 1 answer
2. asked by Jenny
3. 1,558 views
The products for the following: CaCl2(aq) + K2CO3(aq) �¨A. CaCO3(s) + 2KCl(aq) B. CaCO3(aq) + 2KCl(s) C. none of these D. no
1. 1 answer
2. asked by Hellen
3. 1,551 views
A garden has the shape of a right triangle with one leg 3 meters longer tha the other. The hypotenuse is 3 meters less than
1. 2 answers
2. asked by Achillies
3. 1,520 views
Given a quadratic equation in the form y = ax2 +bx +c , and four choices of graphs representing that equation, how can you tell
1. 2 answers
2. asked by mimi
3. 1,507 views
uestion: Five cards are dealt from standard deck of 52 cards, what is the probability of being dealt 3 kings?Here is what I have
1. 1 answer
2. asked by marco
3. 1,476 views
A glider airplane is coasting horizontally when a very heavy object suddenly falls out of it.As a result of dropping this
1. 1 answer
2. asked by Joe
3. 1,386 views
How many solutions does the following system have:2x + 5y = 10 3x + 6y = 12 Explain how to determine the number of solutions
1. 1 answer
2. asked by Kathy camkat
3. 1,381 views
1) What are the 3 basic forms of energy?Since there are so many, I'm thinking of kinetic and potential, but what would be the
1. 3 answers
2. asked by kriti
3. 1,381 views
multiple questions:1- Computers are connected to the internet through a)direct connection b)dial up connections through modems
1. 7 answers
2. asked by sweety
3. 1,302 views
A heavy rifle initially at rest fires a light bullet.Which of the following statements about these objects is true? A. The
1. 0 answers
2. asked by Joe
3. 1,250 views
A person's height, eye color, and skin tone are all examples of?
1. 1 answer
2. asked by Jess
3. 1,238 views
if a 100g sample of water at 60.0 C is added to a 100.0 g sample of water at 10.0 C, determine the final temperature of the
1. 2 answers
2. asked by emily
3. 1,194 views
So I posted something like this about my introductory paragraph. I have my conclusion and was wondering if you could tell me if
1. 2 answers
2. asked by Hans
3. 1,190 views
I need an apa format paper about "How does smoking affect the environment"?
1. 1 answer
2. asked by Kami
3. 1,189 views
Find the volume in liters.6.5kg of a substance with a density of 7.96g/mL Im confused about how it would come out in liters.. if
1. 1 answer
2. asked by tammie
3. 1,186 views
5: You are attending a professional conference and are privileged to be introduced to Caroline Peters. You know nothing about
1. 4 answers
2. asked by Jay
3. 1,181 views
How did India experience that arrival of the British, in light of the past?How did India experience the British domination? How
1. 3 answers
2. asked by Jenny
3. 1,154 views
What is the [OH-] for a solution at 25°C that has [H3O+] = 8.23 × 10-2 M?
1. 0 answers
2. asked by richard
3. 1,149 views
For the reaction: C4H10 + O2 �¨ CO2 + H2O ( is this balanced?) , how many moles of CO2 is formed when 5.00 moles C4H10 reacts
1. 1 answer
2. asked by Ivy
3. 1,136 views
You pull a short refrigerator with a constant force across a greased (frictionless) floor, either with horizontal (case 1) or
1. 1 answer
2. asked by karim
3. 1,130 views
how will u prepare 500g of aqueos solution which is 10% NaOH by mass?(%W/W)
1. 1 answer
2. asked by yui
3. 1,101 views
Three small lamps are connected to a 24 Vbattery, as shown in the ﬁgure. Assume the battery is ideal (has no internal
1. 1 answer
2. asked by Anonymous
3. 1,095 views
A block is hung by a string from the inside roof of a van. When the van goes straight ahead at a speed of 27 m/s, the block
1. 0 answers
2. asked by Julius
3. 1,080 views
Determine the equivalent capacitance between A and B for the group of capacitors in the drawing. Let C1 = 12 µF and C2 = 4.0
1. 2 answers
2. asked by YANA
3. 1,073 views
"For Richard, a life's meaning is in the independence of the individual. Thtat means that Richard sees life as a quest for
1. 2 answers
2. asked by Aesha
3. 1,054 views
A proton with a speed of 4.20×104 km/s makes an elastic head-on collision with a stationary carbon nucleus. We can look up the
1. 1 answer
2. asked by Joe
3. 1,046 views
Please review the following case and use it as the basis for your analysis for this unit. Pay careful attention to the situation
1. 0 answers
2. asked by lee
3. 1,034 views
So first off i want to say writing essays are not in my strengths. so i was wondering if someone could read my intro paragraph
1. 1 answer
2. asked by jim
3. 1,015 views
A 1220 kg car rounds a circular turn of radius 19.2 m. If the road is flat and the coefficient of static friction between the
1. 4 answers
2. asked by Jen
3. 980 views
in a exothermic reaction ________ energy is converted to ________ energy.A. potential, kenetic B. kinetic, potential C. thermal,
1. 1 answer
2. asked by emily
3. 964 views
How do I find how many grams of CH3COOH are present in cm^3 of vinegar? Also, how many moles of CH3COOH are present in 2.5 cm^3
1. 1 answer
2. asked by Steven
3. 959 views
Calculate the distance (in km)that Larry runs if he maintains an average speed of 8km/hr for 45 minutes.
1. 1 answer
2. asked by Roger
3. 935 views
What is the maximum area of a rectangle area with a fixed perimeter of 80 ft?
1. 2 answers
2. asked by Anonymous
3. 931 views
I am doing a formal paper about the book The Great Gatsby and how the character's American Dreams cause them to have pain when
1. 3 answers
2. asked by Hans
3. 930 views
Explain how you would create the users for the sales organization unit and how to set upwork groups in this particular
1. 0 answers
2. asked by diann
3. 896 views
what is a standard solution? and what is a function of an indicator in a titration?
1. 2 answers
2. asked by Nancy
3. 886 views
Express y=[4x-x^3]/[3x^2+2)^2 as a product and then differentiate. Simplify your answer using positive exponents. Help Please!
1. 1 answer
2. asked by lo
3. 872 views
Consider the illustration, which shows a rotating beam of light located 0.5 mile from a shoreline. The beam rotates at a rate of
1. 5 answers
2. asked by Tori
3. 862 views
Suppose the tangent of an acute angle in a right triangle is less than 1. How does the side opposite the angle compare to the
1. 1 answer
2. asked by Naomi
3. 839 views
A 20.0 ml sample of an unknown HCl solution requires titration with 15.0ml of 0.1MNaOH solution to reach equivalent point. What
1. 0 answers
2. asked by Aaron
3. 810 views
What is the molar solubility of Fe(OH)3(s) in a solution that is buffered at pH 2.75? The Ksp of Fe(OH)3 is 6.3 × 10-38.
1. 1 answer
2. asked by Sarah
3. 799 views
A computer is reading data from a rotating CD-ROM. At a point that is 0.032 m from the center of the disc, the centripetal
1. 4 answers
2. asked by Julius
3. 784 views
The equilibrium constant for the reaction is 37 at a certain temperature.2H2(g) + CO(g)<==> CH3OH(g) If there are .0293 moles of
1. 2 answers
2. asked by Raeyna
3. 734 views
For the reaction: H2(g) + Cl2(g) �¨ HCl(g) (is this balanced?) calculate the mass, in grams of H2 needed to react with 25.0g
1. 0 answers
2. asked by Anthony
3. 721 views
assess an infant,Discuss at least two social factors that are impacting the health of your client. Be certain to specifically
1. 1 answer
2. asked by Sree
3. 720 views
Calculate the mass in grams for a gold sample that absorbs 245J to change its temperature from 19 degrees to 49 degrees
1. 1 answer
2. asked by Wendy
3. 719 views
A mini-computer system contains two components, A and B. The system will function so longas either A or B functions. The
1. 1 answer
2. asked by Paula
3. 716 views
An unknown gas has a molecular weight of 30.07 g/mol. What is the density of the gas at STP?
1. 2 answers
2. asked by lauren
3. 711 views
What is the molar solubility of Fe(OH)3(s) in a solution that is buffered at pH 2.75? The Ksp of Fe(OH)3 is 6.3 × 10-38.
1. 2 answers
2. asked by Sarah
3. 706 views
Look for two programs that appeal to you at Education Planner and complete the chart below for each program.Program Name 1:
1. 1 answer
2. asked by Anonymous
3. 685 views
What are some things that start with or have x and y in them that can be found in Sudan? I've looked EVERYWHERE. Except Sudan
1. 3 answers
2. asked by Catherine
3. 684 views
If the current is composed of Na+ ions (q = +e), how many such ions flow in 0.7 s?
1. 1 answer
2. asked by YANA
3. 681 views
What is the midpoint of the line segment connecting the points (2,- 3)and (4,9)?
1. 1 answer
2. asked by may
3. 681 views
3 pipes are used to fill apool with water .Individually they can fill that pool in 9hr ,6hr ,3hr .how many minutes will it take
1. 1 answer
2. asked by rob
3. 665 views
Cart A, of mass 3.00 kg, approaches and collides with cart B, which has a mass of 7.00 kg and is initially at rest.When the
1. 1 answer
2. asked by Joe
3. 660 views
Two carts, one twice as heavy as the other, are at rest on a horizontal frictionless track. A person pushes each cart with the
1. 0 answers
2. asked by Joe
3. 659 views
What events and factors have contributed to problems in South East Europe? IS there a website for this?
1. 3 answers
2. asked by Alyonka
3. 656 views
How did India experience that arrival of the west, in light of the past?How did India experience the western domination? How did
1. 2 answers
2. asked by Jenny
3. 655 views
Complete the following statements about the measures of angles in the ﬁgure shown, where and state the generalization that
1. 1 answer
2. asked by Brandi
3. 653 views
(Part 2) Include the steps involved in transmitting the impulse “microscopically” through an individual neuron, from one
1. 1 answer
2. asked by Kristy
3. 648 views
a)If the Keq for the esterification of acetic acid with isopentyl alcohol is 3.0, what is the maximum amount of isopentyl
1. 1 answer
2. asked by Tony
3. 646 views
A 5.10-g sample of iron is heated from 36.0 C to 75.0 C. The amount of energy required is 89.5 J. the specific heat capacity of
1. 1 answer
2. asked by emily
3. 643 views
I have this one question that is giving me some trouble trying too figure out. Could one please help me with this one question.B
1. 2 answers
2. asked by David
3. 639 views
Which statement about Attorney General Palmer is true?A) He criticized President Wilson's decision to release Eugene Debs B) As
1. 1 answer
2. asked by sharice
3. 627 views
Examples of how are critical thinking skills affected by long term memory?
1. 1 answer
2. asked by mistagirl1124
3. 626 views
Tarzan tries to cross a river by swinging from one bank to the other on a vine that is 8.8 m long. His speed at the bottom of
1. 1 answer
2. asked by Ryan
3. 619 views
Hey guys just needed to clarify on some key points on Artificial Intelligence.What are the types of AI? I think it's weak and
1. 1 answer
2. asked by Shivi
3. 611 views
Please review the following case and use it as the basis for your analysis for this unit. Pay careful attention to the situation
1. 0 answers
2. asked by lee
3. 604 views
Calculate the volume of distiled water to prepare 10%w/v solution of solute if 8g of the solute is to be used.
1. 0 answers
2. asked by yui
3. 602 views
I'm doing a project for social studies, and I want to know if the African Queen Lily grows in Sudan. Please help!
1. 3 answers
2. asked by Catherine
3. 602 views
IF A HYPOTENUSE HAS A RATIO OF 1;2 AND THE ALTITUDE IS SIX WHAT DO I DO TO SLOVE THIS PROMBLEM
1. 1 answer
2. asked by Anonymous
3. 593 views
A block is hung by a string from the inside roof of a van. When the van goes straight ahead at a speed of 27 m/s, the block
1. 0 answers
2. asked by Julius
3. 590 views
A student score 78 on his statistics test where the average score was 90 the the standard deviation was 7.
1. 1 answer
2. asked by Barbara
3. 588 views
whaen comparing the flow of lymph in the lymphatic system with the flow of blood in the circulatory system, it can be said that
1. 0 answers
2. asked by lillian
3. 587 views
What is the molarity of CuCl2 solution that completely reacts with 10.0g of zinc , if the volume of the solution is 360mls?Zn(s)
1. 0 answers
2. asked by Tim
3. 586 views
10. A length L of wire has a charge density of  C/m. What is the electric field at an axial distance r from the wire if L is
1. 1 answer
2. asked by ike
3. 573 views
what is the variance and standard deviation for the group of numbers:28 27 48 52 77 29 30 31 60
1. 1 answer
2. asked by Barbara
3. 570 views
Can you help me define persuasive thinking?
1. 1 answer
2. asked by patiance
3. 568 views
what is your opinion of leadership?I think leadership isn't always about being outspoken and holding a high position in an
1. 1 answer
2. asked by Amy
3. 567 views
It is known from experience that in a certain industry 40 percent of all labour-management disputes are over wages, 40 percent
1. 0 answers
2. asked by Paula
3. 563 views
I was on the CIA world factbook and it said that interethnic warfare was a problem...what does that mean?
1. 15 answers
2. asked by Alyonka
3. 561 views

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