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Questions Asked on March 28, 2015

An unstretched ideal spring hangs vertically from a fixed support. A 0.4 kg object is then attached to the lower end of the
1. 3 answers
2. asked by Helly
3. 6,304 views
What is the civil service and how do people join?
1. 2 answers
2. asked by jimm
3. 6,101 views
Tasha is planning an expansion of a square flower garden in a city park. If each side of the original garden is increased by 7m
1. 3 answers
2. asked by Steve
3. 5,628 views
What is the value of c so that y=x^2+15x+c is a perfect square trinomial?
1. 7 answers
2. asked by Steve
3. 5,227 views
110 members of a sports club play at least one of the games, football, basketball and volleyball. If 20 play football and
1. 6 answers
2. asked by Ayodeji
3. 4,109 views
A particle starts from the origin at t = 0 with an initial velocity of 4.8m/s along the positive x axis.If the acceleration is
1. 1 answer
2. asked by Jackson
3. 3,298 views
the horizontal distance between a crest to the next trough of an ocean wave is 5 meters. what is the wavelength of the ocean
1. 1 answer
2. asked by Sierra
3. 3,280 views
In the multi-draft reading process, what does a reader look for in the second reading of a dramaA. The theme of the drama B. How
1. 13 answers
2. asked by Anonymous
3. 2,954 views
The sole activity of the respiratory system is breathing.True False The exchange of gases between the blood and tissue cells is
1. 2 answers
2. asked by april
3. 2,569 views
New England was a good starting place for American textile manufacturing for what reason?A)There were no ports within easy
1. 2 answers
2. asked by anonymous
3. 2,555 views
which of the following inventions increased the availability of electricity in homes?a. telephone b. transformer c. reinforced
1. 18 answers
2. asked by basketball&batman
3. 1,927 views
Calculate the pH of a buffer which contains 0.0500 M pyruvic acid and 0.0450 M sodium pyruvate. (The Ka of pyruvic acid is 4.1
1. 2 answers
2. asked by paula
3. 1,703 views
If a car has a constant acceleration of 4 m/s², starting from rest, how far has it travelled by the time it reaches the speed
1. 1 answer
2. asked by Barry
3. 1,521 views
A person pushes on a 56-kg refrigerator with a horizontal force of -260 N; the minus sign indicates that the force points in the
1. 1 answer
2. asked by Physics2hard4me
3. 1,516 views
mercury rotates about its own axis once every 58.6 Earth days. a satellite orbits mercury once every murcurian day. how high is
1. 1 answer
2. asked by khalifah
3. 1,490 views
A fictional event ...Am I supposed to write about a real story that has happened in MY life ? Or make up a story ? Write a short
1. 22 answers
2. asked by Ciaria
3. 1,379 views
7. The original purpose of the Constitutional Convention of 1787 was to A. develop the principle of states' rights. B.
1. 8 answers
2. asked by Sarah
3. 1,374 views
If 84.1 g of sodium hydroxide are reacted with 51.0 g of aluminum in the following equation:2NaOH + 2Al + 2H2O --> 2NaAlO2 + 3H2
1. 2 answers
2. asked by Charles
3. 1,359 views
2. Ferns are the most abundant of the _____ plants; and they produce _______ to reproduce.gymnosperm; sperm seedless
1. 8 answers
2. asked by YOLO
3. 1,356 views
Calculate the standard entropy change for the following reaction at 25 °C.2 Al (s) + 3 ZnO (s) --> Al2O3 (s) + Zn (s) answer is
1. 1 answer
2. asked by Jen
3. 1,292 views
which of these statements provides evidence to the fact that oceans influence climate by transporting water from one place to
1. 2 answers
2. asked by Sierra
3. 1,285 views
The first term of geometric is 124.the sum of infinity is 64.find the common ratio
1. 1 answer
2. asked by Ludere tshifularo
3. 1,202 views
Which of the following laws was upheld as constitutional by the U.S. Supreme Court?A. Communications Decency Act B. Child Online
1. 2 answers
2. asked by Pat
3. 1,170 views
The sole activity of the respiratory system is breathing.True False The exchange of gases between the blood and tissue cells is
1. 1 answer
2. asked by april
3. 1,053 views
What is the total concentration of cations in a solution made by combining 700.0 mL of 3.0 M (NH4)3PO4 with 300.0 mL of 2.0 M
1. 2 answers
2. asked by cesar
3. 1,047 views
Find the exact value of the sine, cosine, and tangent of the angle 330 degrees.I know the tangent is -(square root 3)/3, but
1. 1 answer
2. asked by Anonymous
3. 1,046 views
Two positive integers aer in the ratio 2:5. If the product of the two integers is 40, find the larger integer.
1. 1 answer
2. asked by scicenemaster21212
3. 1,041 views
1. Shawn Fitzgerald finds a suitable property and agrees upon a selling price of $137,900. The mortgage company requires a 20%
1. 2 answers
2. asked by Nadia
3. 1,026 views
The gravitational force that the sun exerts on the moon is perpendicular to the force that the earth exerts on the moon. The
1. 1 answer
2. asked by Kristyn
3. 1,017 views
Use Newton’s Method to approximate 3^(√7) to four decimal places.Use x1 = 2 as your seed. Round off intermediate iterates to
1. 3 answers
2. asked by Jane
3. 1,011 views
a statistics professor plans class so carefully that the lengths of his classes are uniformly distributed between 45.0 and 55.0
1. 1 answer
2. asked by lolo
3. 976 views
determine whether the given vector A in M22 belongs to the span (a1,a2,a3) where a1=[1 -1; 0 3]a2=[1 1; 0 2] a3=[2 2; -1 1] and
1. 0 answers
2. asked by sara
3. 975 views
the world's largest cube puzzle in Knoxville measures 6 feet on each side. The scale factor between a standard cube puzzle and
1. 1 answer
2. asked by mary
3. 959 views
A gardener is mowing a 20 by 40 yard rectangular pasture using a rectangular pattern. He mows from one corner of the pasture to
1. 2 answers
2. asked by Steve
3. 892 views
Solve each equation on the interval [0, 2pi):a. 4sin^2(x)-3=0 b. cos(3x)=-1
1. 1 answer
2. asked by O
3. 882 views
What is the total change in entropy when 10.0 g of ice melts at 25.0°C? DHfus = 6.01 kJ/molThe answer is 1.03 J/K but idk how
1. 0 answers
2. asked by paula
3. 880 views
1.A hypodermic needle of lenght 0.020m and inner radius 3.0 x10^-4 is used to force water at 20 degree celcious into the air at
1. 1 answer
2. asked by JAMES
3. 869 views
Solve each equation, giving a general formula for all of the solutions:a. 2sin^2(x)-5 sin(x)-3=0 b.
1. 1 answer
2. asked by Alex
3. 856 views
1. __________ is/are NOT an angiosperm because it does not _______. (1 point)Barley; produce fruit Wheat; produce seeds*
1. 3 answers
2. asked by YOLO
3. 856 views
Some functions that aren't invertible can be made invertible by restricting their domains. For example, the function x^2 is
1. 1 answer
2. asked by Mark
3. 842 views
Which of these is true?The nervous system doesn't react as quickly as the endocrine system. The endocrine system doesn't react
1. 3 answers
2. asked by YOLO
3. 831 views
A golfer imparts a speed of 25.8 m/s to a ball, and it travels the maximum possible distance before landing on the green. The
1. 1 answer
2. asked by Kristyn
3. 818 views
A plastic rod is rubbed against a wool shirt, thereby acquiring a charge of -0.8micro colomb. Haw many electrons are transferred
1. 0 answers
2. asked by abdulhayi musa
3. 807 views
Calculate the net charge on a substance consisting of a combination of 6.7 ✕ 10^13 protons and 3.0 ✕ 10^13 electrons.
1. 0 answers
2. asked by Makenzie
3. 771 views
A different eight grader has been asked to work at the face painting booth every half hour. Use division to find how many
1. 2 answers
2. asked by Aswan
3. 756 views
Can someone please check these 4 sentences?a. La bibliothèque à New York est plus grande que la bibliothèque à Paris. b. Les
1. 3 answers
2. asked by Wendy
3. 756 views
A golfer imparts a speed of 25.8 m/s to a ball, and it travels the maximum possible distance before landing on the green. The
1. 1 answer
2. asked by Kristyn
3. 752 views
Build a PowerPoint ® presentation that will address each of the Project Management Areas of Knowledge, the process groups that
1. 1 answer
2. asked by JennJenn01
3. 715 views
Use half reaction to balance:CuS + NO3^- = Cu(NO3)2 + NO2 + SO2 S^2- = SO2 S Oxidized Cu^2+ + NO3^- = NO2 + Cu(NO3)2 N Red After
1. 0 answers
2. asked by Robert
3. 712 views
I posted this under science because I see it occurring most under this subject. Many of the tutors here are very rude and
1. 4 answers
2. asked by You don't need to know
3. 707 views
A statistics quiz consists of 10 multiple questions. There are four choices for each question.One student is unprepared and
1. 2 answers
2. asked by Anonymous
3. 697 views
1. __________ is/are NOT an angiosperm because it does not _______. (1 point)Barley; produce fruit Wheat; produce seeds*
1. 3 answers
2. asked by YOLO
3. 697 views
calculate the ph at the equivalence point for the titration of .1 M NH3 and .1 M HCl. kb NH3= 1.8E-5how you do it?
1. 0 answers
2. asked by JK
3. 652 views
A series circuit consists of a resister with R = 200 ohm, an inductor with L = 1H, a capacitor with C = 0.002F, and a 12V
1. 0 answers
2. asked by gourav
3. 644 views
Solve each equation for theta, giving a general formula for all of the solutions:a. tan(theta)=-1 b. sin(theta/2)=1/2
1. 1 answer
2. asked by Alex
3. 641 views
calculate the ph at the equivalence point for the titration of 0.01 M Ch3COOH with 0.1 M NaoH ka= Ch3Cooh 1.8E-5idek how to do
1. 0 answers
2. asked by JK
3. 635 views
requirenment for essay:Attention-grabber: Relevant quotation Create imagery to evoke imagination Fragment & general discussion
1. 3 answers
2. asked by anonymous
3. 625 views
Arteries carry blood ________ the heart.
1. 2 answers
2. asked by april
3. 619 views
More communities are addressing the need for out-of-school care because ofA. teen pregnancy and inadequate care of their
1. 3 answers
2. asked by Kaleisha
3. 607 views
The function f(x) = cx/2 x+3 satisfies f(f(x))=x for all real numbers x\= -3/2. Find c.
1. 1 answer
2. asked by Jim
3. 579 views
we have line QR parallel= to line ST, PQ = 8, QS = , and PT = 12. Find PR.
1. 1 answer
2. asked by Ron
3. 577 views
In quadrilateral QRTS, we have QR = 11, QS = 9, and ST=2. Sides line RQ and line ST are extended past Q and S, respectively, to
1. 1 answer
2. asked by mike
3. 558 views
Separate the following partial differential equation into a set of three ODEs by the method of separation of variables:d^2u/dt^2
1. 0 answers
2. asked by gourav
3. 556 views
75 pupils sat for a Science Test. The average score was 58 marks. If the average score of the girls was 62 marks and the average
1. 3 answers
2. asked by john
3. 550 views
I am confused about the following problem. Could someone help me out?In a statistic class, the average score of midterm is 75
1. 1 answer
2. asked by YAMI
3. 547 views
. Helping a child adjust to a child care facility is known asA. in loco parentis. B. orientation. C. parenting. D. involvement.
1. 3 answers
2. asked by liliana
3. 546 views
Briana wants to divide 5/8 pound of soil evenly among 4 pots how much soil will be in each pot
1. 3 answers
2. asked by Ana
3. 546 views
I need help with these questions:A survey of 115 children found that 39 liked The Little Mermaid 43 liked 101 Dalmatians 56
1. 2 answers
2. asked by Nadia
3. 534 views
Considering the pros and cons concerning electronic gaming make a case for or against the use of these educational games in the
1. 2 answers
2. asked by Cathy
3. 529 views
Solve the initial value problem.d^2x/dt^2+2dx/dt-3x =0, x(2π) = 1, x(2π) = 13
1. 0 answers
2. asked by gourav
3. 526 views
a solution containing 100.0 mL of 0.135 M CH3COOH (ka=1.8E-5) is being titrated with 0.54 M NaOH. calculate the ph:at the
1. 0 answers
2. asked by JK
3. 525 views
A lumberjack (mass = 98.3 kg) is standing at rest on one end of a floating log (mass = 258 kg) that is also at rest. The
1. 0 answers
2. asked by Physics2hard4me
3. 511 views
Obtain the temperature distribution u(x,t) in a literally insulated rod of length L if both ends on the road are kept at 0°c
1. 0 answers
2. asked by gourav
3. 510 views
In triangle ABC, points X and Z are on line AB and Y is on line AC such that line XY is parallel to line BC and line ZY is
1. 1 answer
2. asked by Harry
3. 505 views
25ml of NaCl was mixed with 10ml of AgNO3. A precipitate was made. What is the theoretical yield? What is the limiting and
1. 2 answers
2. asked by Layla
3. 501 views
What are some roles that the president plays in the U.S. government?
1. 1 answer
2. asked by jimm
3. 501 views
If I selected one player at random what would be the probability of an NBA player in the Eastern conference being less than 6
1. 2 answers
2. asked by Anonymous
3. 500 views
Evaluate the expressionsa. arctan(-(sqrt3)) b. Arctan(-(sqrt3)) and tell the difference between the two...
1. 1 answer
2. asked by O
3. 500 views
Select the approximate values of x that are solutions to f(x) = 0, where f(x) =- 8x2+5x+3.I don't know if i did it correctly but
1. 2 answers
2. asked by denise
3. 498 views
An elctron starts at the position shown in Figure with an initial speed v=5000000m/s at 45^°to the X-axis the electric field is
1. 1 answer
2. asked by abdulhayi musa
3. 486 views
50 feet of fencing is used to create a rectangular fenced-in region. if the length of the region is x, express the width, w, as
1. 1 answer
2. asked by Anonymous
3. 483 views
What is the simple interest for the loan $500 with a 6% interest rate for 10years?
1. 2 answers
2. asked by Harish
3. 482 views
The help of a computer program can help reduce the time that you as a director spend on payroll by as much asA. 75% B. 10% C.
1. 3 answers
2. asked by Kaleisha
3. 482 views
Show that :(I) u = e^xsiny is a solution of Laplace's equation.(ii) u = x^2+t^2 is a solution of the wave equation.
1. 0 answers
2. asked by gourav
3. 478 views
Mona has $27.05 in quarters and dimes. There are 152 coins. How many quarters are there?
1. 1 answer
2. asked by deeke
3. 469 views
dissolving 4.022 g of a salt in 100 mL of water changes temperature by -1.2^oC: what is the heat absorbed?The specific heat of
1. 0 answers
2. asked by Bob
3. 464 views
What colour representsDistrust Caring Loyalty
1. 2 answers
2. asked by Thi
3. 439 views
which of the following pairs of numbers contains like fraction
1. 1 answer
2. asked by diane
3. 439 views
For any two vectors u and v show that :( Vector u.vector v )^2 = [(vector u× vector v)×vector v ].vector u = u^2v^2
1. 0 answers
2. asked by gourav
3. 435 views
Show that : vector del(r^2) = 2vector r
1. 0 answers
2. asked by gourav
3. 426 views
What is the formula for the following problemWhat is the kinetic energy, in joules of a mole of oxygen moving at a speed of 225m
1. 0 answers
2. asked by Stacie
3. 422 views
A 1.500 mol sample of PCL5 dissociates at 160C and 1.00 atm to give 0.203 mol of PCL3 at equilibrium. What is the composition of
1. 0 answers
2. asked by Darlice
3. 414 views
An elctron starts at the position shown in Figure with an initial speed v=5000000m/s at 45^°to the X-axis the electric field is
1. 0 answers
2. asked by abdulhayi musa
3. 394 views

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