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2011
February

Questions Asked on February 4, 2011

Complete these bronsted lowry reactionsHS^- + H^+ ---> HS^- + OH^- ---->
1. 1 answer
2. asked by ALEJANDRO
3. 9,627 views
What is the average power output of a weightlifter who can lift 260 kg to a height of 1.9 m in 1.8 seconds?
1. 2 answers
2. asked by Ash
3. 6,781 views
At a temperature of 20°C, the volume V (in liters) of 1.33 g of O2 is related to its pressure p (in atmospheres) by the formula
1. 2 answers
2. asked by Anonymous
3. 6,101 views
A worker stands still on a roof sloped at an angle of 23° above the horizontal. He is prevented from slipping by a static
1. 4 answers
2. asked by Anonymous
3. 5,033 views
Choose the end behavior of the graph of each polynomial function.A f(x)= -5x^3-4x^2+8x+5 B f(x)= -4x^6+6x^4-6x^3-2x^2 C f(x)=
1. 2 answers
2. asked by Rachal
3. 4,116 views
A +3.0 nC charge is at x=0 cm and a -1.0 nC charge is at x=4 cm. At what point or points on the x-axis is the electric potential
1. 1 answer
2. asked by Lauren
3. 4,078 views
If U is between T and B, find the value of x and the measure of TU.TU=4x-1, UB=2x-1, TB=5x Please help!
1. 4 answers
2. asked by Jane
3. 4,046 views
Suppose H(x)=(sqrt5x+3).Find two functions f and g such that (fog)(x)= H(x) . f(x)= g(x)= Neither function can be the identity
1. 2 answers
2. asked by Janet
3. 3,885 views
Below is the graph of a polynomial function f with real coefficients. Use the graph to answer the following questions about f.
1. 3 answers
2. asked by Rachal
3. 3,671 views
A mass is oscillating on the end of a spring. The distance, y, of the mass from its equilibrium point is given by the formula
1. 1 answer
2. asked by maggie
3. 3,540 views
The function g is defined by g(x)=3x^2+6.Find g(5y)
1. 4 answers
2. asked by Janet
3. 3,447 views
on a lake without any waves, how far from the shore is a sailboat when the top of 10 m mast disappears from view of a person
1. 1 answer
2. asked by parker
3. 3,370 views
Let f be defined as follows.y = f(x) = x^2 - 4 x (a) Find the average rate of change of y with respect to x in the following
1. 1 answer
2. asked by Anonymous
3. 3,163 views
if two sides of a triangle are 8 feet and 15 feet the length of the third side could be?
1. 2 answers
2. asked by Anonymous
3. 3,138 views
Find the exact area of the region bounded by the -axis and the graph of (x^3)-x
1. 1 answer
2. asked by cw
3. 3,077 views
The demand for Sportsman 5 X 7 tents is given by the following function where p is measured in dollars and x is measured in
1. 1 answer
2. asked by Marie
3. 2,933 views
Friction provides the force needed for a car to travel around a flat, circular race track. What is the maximum speed at which a
1. 1 answer
2. asked by Kristen
3. 2,582 views
A cannonball is fired horizontally from the top of a cliff. The cannon is at height = 70.0 above ground level, and the ball is
1. 3 answers
2. asked by Anonymous
3. 2,434 views
Two capacitors are connected in parallel as shown above. A voltage V is applied to the pair. What is the ratio of charge stored
1. 2 answers
2. asked by Amanda C.
3. 2,289 views
The engines of a 1.20 x 10^5 N rocket exert an upward thrust of 2.00 x 10^5 N for 1.50 minutes upon lift off.What is the impulse
1. 1 answer
2. asked by help
3. 2,184 views
two girls caught 25 frogs. Lisa caught four times as many as Jen did. how many frogs did Jen catch
1. 2 answers
2. asked by bob
3. 2,126 views
An instructor has graded 23 exam papers submitted by students in a class of 24 students, and the average so far is 73. (The
1. 2 answers
2. asked by Anonymous
3. 2,076 views
A 500kg pig is standing at the top of a muddy hill on a rainy day. the hill is 100.0m long with a vertical drop of 30.0m. the
1. 1 answer
2. asked by Marissa
3. 1,970 views
A pizza has a diameter of 12 . What is its circumference?Use the value for 3.14 , for pie
1. 2 answers
2. asked by Anonymous
3. 1,960 views
if two sides of a scalene triangle measure 10 and 12 the length of the third side could be?
1. 1 answer
2. asked by danielle
3. 1,950 views
A 3 inch thick slice is cut off the top of a cube, resulting in a rectangular box that has volume 128in^3 .Round your answer to
1. 2 answers
2. asked by Rachal
3. 1,847 views
A car is traveling at v = 16m/s . The driver applies the brakes and the car decelerates at a= -4.0 m/s^2 . What is the stopping
1. 1 answer
2. asked by Anonymous
3. 1,667 views
The graph of a function f with domain [0, 4] is shown in the figure. Sketch the graph of the equation.y = f(x + 1)
1. 1 answer
2. asked by Anonymous
3. 1,657 views
Letf(x)=(4x^2 -7x +2)/(x^2 -16x +63) Find the equations of the horizontal asymptotes and the vertical asymptotes of f(x). If
1. 2 answers
2. asked by Sachenka
3. 1,647 views
The principal P is borrowed and the loan's future value, A, at time t is given. Determine the loan's simple interest rate, r, to
1. 1 answer
2. asked by Anonymous
3. 1,643 views
In compressing the spring in a toy dart gun, 0.5 J of work is done.When the gun is fired, the spring gives its potential energy
1. 2 answers
2. asked by Kinetic Energy #2
3. 1,610 views
A rectangular picture frame has a perimeter of 3f.The width of the frame is 0.62 times its height.Find the height of the frame.
1. 1 answer
2. asked by Malia
3. 1,577 views
Find the area of a trapezoid if the altitude is 6" and the median is 8." ???
1. 2 answers
2. asked by Danika
3. 1,530 views
Find the domain of the function.f(x)=(sqrt x+6)/(-2x-5) Write your answer as an interval or union of intervals.
1. 3 answers
2. asked by Jena
3. 1,520 views
The citizens of Paris were terrified during World War I when they were suddenly bombarded with shells fired from a long-range
1. 1 answer
2. asked by Renee
3. 1,472 views
when an elephant casts a 2.5 meter shadow, a man 2 meters tall casts a 1.5 meter shadow. how tall is the elephant
1. 1 answer
2. asked by kay
3. 1,441 views
What volume of 16M HNO3 is required to dissolve 0.50g of Cu metal in the following reaction?Cu(s) + 4HNO3(aq) ---> Cu(NO3)2 +
1. 1 answer
2. asked by Alex
3. 1,440 views
A 31.0 kg crate, initially at rest, slides down a ramp 2.6 m long and inlined 14 degrees with the horizontal. Using the
1. 1 answer
2. asked by Matt
3. 1,417 views
The mass of the Moon is 7.35 x 10^22 kg. At some point between Earth and the Moon, the force of Earth's gravitational attraction
1. 2 answers
2. asked by Joanna
3. 1,396 views
In a cell undergoing meiosis, which sequence of events is shown in correct order?A. the cytoplasm divides, chromosomes line up
1. 1 answer
2. asked by Matt
3. 1,373 views
Homework Help Forum: AlgebraPosted by Jena on Thursday, February 3, 2011 at 7:32pm. Find the domain of the function. f(x)=(sqrt
1. 3 answers
2. asked by Jena
3. 1,345 views
Water flows under pressure from one pipe into a second pipe having half the diameter. The volume flow rate in the narrow pipe is
1. 2 answers
2. asked by Amity
3. 1,330 views
Two skaters, a man and a woman, are standing on ice. Neglect any friction between the skate blades and the ice. The mass of the
1. 1 answer
2. asked by Tiffany
3. 1,313 views
Particles are a major component of air pollution in many areas. It is of interest to study the sizes of contaminating particles.
1. 0 answers
2. asked by Lucy
3. 1,313 views
A car travels at a speed of 25 m/s on a flat stretch of road. The driver must maitain pressure on the accelerator to keep the
1. 0 answers
2. asked by Kourt
3. 1,309 views
In a head-on, inelastic collision, a 4000 kg truck going 10 m/s east strikes a 1000 kgcar going 20 m/s west. (a) What are the
1. 2 answers
2. asked by Kinetic Energy
3. 1,307 views
While blowing its horn of frequency 477 Hz, a car accelerates at 0.94 m/s2.The car starts from rest by your side and moves away.
1. 1 answer
2. asked by PLEASE HELP!!
3. 1,300 views
The Largo Publishing House uses 400 printers (workers) and 200 printing presses to produce books. A printer's wage rate is $20
1. 4 answers
2. asked by Lil
3. 1,297 views
Compare and Contrast the atomic theories proposed by Democritus and John Dalton.
1. 1 answer
2. asked by Lenny
3. 1,293 views
The number of bacteria in a certain population increases according to an exponential growth model, with a growth rate of 11% per
1. 2 answers
2. asked by Rachal
3. 1,270 views
Prove that if x and y are nonnegative real numbers, then (x+y)/2 ≥ sqrt(xy).Use the technique of working backward from the
1. 0 answers
2. asked by Meg
3. 1,254 views
A 31.0 kg crate, initially at rest, slides down a ramp 2.6 m long and inlined 14 degrees with the horizontal. Using the
1. 1 answer
2. asked by Matt
3. 1,226 views
A 37 kg child roller skates, initially at rest, rolls 2.0 m down an incline at an angle of 17 degrees with the horizontal. If
1. 2 answers
2. asked by Ash
3. 1,204 views
<11{1[3(02)02]}> Catherine goes to her local movie theater only to see romantic comedies. Since Catherine did not go to the
1. 3 answers
2. asked by Anonymous
3. 1,191 views
what type of interaction is Mg2+, O2-What type of interaction is Na+, Cl- What type of interaction is I-I What type of
1. 0 answers
2. asked by nic
3. 1,163 views
the lengths of corresponding sides of similar rectangles have a ratio of 7:4 the perimeter of the smaller rectangle is 80 ft.
1. 1 answer
2. asked by walter
3. 1,148 views
Plot the points A(2,2), B(4,6),C(10,-2)Notice that these points are vertices of a right triangle (the angle is 90 degrees).Find
1. 1 answer
2. asked by katrina
3. 1,144 views
Ok so this problem appeared in my online chem homework, but it looks alot more like a physics problem. I have no idea how to do
1. 4 answers
2. asked by D
3. 1,133 views
two cars, one with mass m1=1000kg and the other with mass m2= 4000kg crash in an intersection. Before the crash, car m1 was
1. 1 answer
2. asked by Chris
3. 1,132 views
The Gamma Corporation, one of the firms that retains you as a financial analyst, is considering buying out Beta Corporation, a
1. 2 answers
2. asked by lil
3. 1,130 views
Consider the function below.f(x) = 4x2 - 5x (a) Find f '(2). (b) Use the answer in part (a) to find an equation of the tangent
1. 1 answer
2. asked by Tyler
3. 1,109 views
The solids in each pair are similar. Find the surface area for solid B.Solid A: Surface area = 25 units squared. Scale factor =
1. 0 answers
2. asked by Dominique
3. 1,102 views
Another “grand challenge” for engineering is managing the nitrogen cycle. Use the nature of the chemical bond in diatomic
1. 3 answers
2. asked by Jazmin
3. 1,101 views
Please, please, please help me!! I got 95% on the appendix B matrix about consequentialism, deontology, and virtue ethics. I
1. 0 answers
2. asked by Jessica
3. 1,067 views
Find the point (o,b) on the y-axis on the y-axis that is equidistant from the points (1,1) and (2,-1)
1. 0 answers
2. asked by katrina
3. 1,066 views
If boron hydride, B4H10, is treated with pure oxygen, it burns to give B2O3 and H2O.2 B4H10(s) + 11 O2(g)  4 B2O3(s) + 10
1. 0 answers
2. asked by Jazmin
3. 1,065 views
A car starts from rest its acceleration is 2m.s-2 in a straight line. What is it displacement after 10 seconds?
1. 3 answers
2. asked by Zinhle
3. 1,024 views
What is the writing style of the book the Tiger Rising by KATE DECAMILLO?
1. 2 answers
2. asked by avin emami
3. 1,020 views
Approximately 16% of undergraduates at the University have a writing score above 68 (on a 100 point scale). Note: writing scores
1. 0 answers
2. asked by KAs
3. 1,008 views
A)a 72 kg man jumps from a window 1.2 m above a sidewalk. the acceleration of gravity is 9.81 m/s2. what is his speed just
1. 1 answer
2. asked by John
3. 994 views
why don't balls bounce as high during the second bounce as they do in the first?
1. 1 answer
2. asked by Alisa
3. 993 views
If f(x)= 3/x-4 and g(x)=2x, there is at least one value of x for which the composite function f(g(x)) cannot be evaluated.What
1. 1 answer
2. asked by Samantha
3. 984 views
Ring the two equivalent fractions in each row.
1. 1 answer
2. asked by Logan
3. 968 views
The specific heat of silver is 0.057 calories/gram°C. If 10.0 grams of silver were heated and the temperature of the sample
1. 3 answers
2. asked by Anonymous
3. 943 views
a particle moves along a number line measured in cm so that its position at time t sec is given by s=72/(t+2) +k, k is a
1. 5 answers
2. asked by nadra
3. 928 views
A 37 kg child roller skates, initially at rest, rolls 2.0 m down an incline at an angle of 17 degrees with the horizontal. If
1. 1 answer
2. asked by Ash
3. 921 views
Suppose that f(x)= square root of x and g(x)= 3x-4 and you are asked to evaluvate the composite function f(g(0)).What is the
1. 1 answer
2. asked by Pauline
3. 913 views
if a mans head is 8 times lager then a womans head and the mans head is 50cm, how big is the womans head?
1. 1 answer
2. asked by Anonymous
3. 910 views
Redstone Clayworks, Inc. is located in Sedona, Arizona and manufactures clay fire pits for patios. They are one of about two
1. 0 answers
2. asked by ann
3. 908 views
I have checked these sites out and they don't answer the question, what molecules is lipitor composed of. I just need to know
1. 1 answer
2. asked by rainy
3. 881 views
select a consumer item available today and analyze it using the 4 ps of marketing
1. 2 answers
2. asked by b
3. 875 views
A balloon filled to its maximum capacity on a chilly night at a carnival pops without being touched when it is brought inside.
1. 2 answers
2. asked by I don't get this, can someone help me please!!!!
3. 873 views
Parent, Inc. is contemplating a tender offer to acquire 80 percent of Subsidiary Corporation's common stock. Subsidiary's shares
1. 2 answers
2. asked by Anonymous
3. 847 views
how do i come up with POEM about significant digits please help
1. 1 answer
2. asked by ashley
3. 837 views
If a 75-kg skater starts his skate at 8.0m, at his lowest point (height = 0), what is his velocity?
1. 1 answer
2. asked by maritza
3. 836 views
A rubber ball of mass m1= 10kg is moving to the right with speed v1= 10m/s. it collides elastically with another ball of mass
1. 0 answers
2. asked by Alan
3. 834 views
what mass of water at 15C can be cooled 1C by heat necessary to melt 185g of ice at 0C
1. 1 answer
2. asked by Brian
3. 831 views
7/10 - W= 1/2solve for W
1. 1 answer
2. asked by jill
3. 830 views
Find an equation of the line having the given slope and containing the given pointm=7/8,(2,-5)
1. 1 answer
2. asked by jano
3. 830 views
a car traveling along the highway needs a certain amount of force exerted on it to stop.more stopping force may be required when
1. 1 answer
2. asked by denise
3. 815 views
a golf ball dropped onto a hard surface rebounds exactly 1/3 of the height from which it falls. how far will it rebound after
1. 1 answer
2. asked by bob
3. 811 views
So for each of the statements we have to write true or rewrite the part in Caps to make the sentence true. I'm only stuck on a
1. 3 answers
2. asked by Leanna
3. 807 views
blocks A and B weigh 10 lb and 40 lb,respectively. A and B extend over a fixed drum, one on reach side. Determine the
1. 1 answer
2. asked by Dave
3. 806 views
prove the identitysec^2x times cot x minus cot x = tan x
1. 1 answer
2. asked by eddie
3. 789 views
How does the medium influence the way we perceive the art, and the value we may give to a particular piece?
1. 1 answer
2. asked by Megan
3. 782 views
The engines of a 1.20 x 10^5 N rocket exert an upward thrust of 2.00 x 10^5 N for 1.50 minutes upon lift off.What is the impulse
1. 2 answers
2. asked by help
3. 777 views
SUBTRACTING...5x^4+3x^2-2x - 5x^4-3x^2+9x _______________ 0x^4+x^2+7x is this right?
1. 1 answer
2. asked by CHECK MY ANSWER
3. 776 views
Which of the following contains ionic bonding?H2O2 PO33- P2O5 AlCl3
1. 1 answer
2. asked by raina
3. 768 views
On the graph of f(x)=3sin(2x), points P and Q are at consecutive lowest and highest points with P occuring before Q. Find the
1. 1 answer
2. asked by maggie
3. 765 views
Let f be defined as follows.y = f(x) = x^2 - 4 x (a) Find the average rate of change of y with respect to x in the following
1. 2 answers
2. asked by Anonymous
3. 759 views

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