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Questions and answers by visitors named
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Questions (134)
The region W is the cone shown below.
The angle at the vertex is 2π/3, and the top is flat and at a height of 5/sqrt(3). Write
4 answers
8,602 views
Write the balanced net ionic equation for each of the following:
1) The reaction of dilute nitric acid with solid aluminum oxide.
3 answers
1,663 views
I'm supposed to prove that if america stopped getting involved in the affairs of the world the result would NOT be chaos.
PLEASE
1 answer
593 views
Then what can I raise as good arguements? What events (after the war in Vietnam) can I use as examples that suggest that the
1 answer
410 views
I need to explain and give examples of how "if america stopped getting involved in affairs of the world the result would NOT be
1 answer
453 views
How were americas foreign affairs like druring the civil war?
http://www.google.com/search?as_q=US+foreign+relations+1860&hl=en&n
1 answer
964 views
I have to write a purpose and an objective in my lab report and I do not know the differences between them. If anyone could help
1 answer
773 views
On what basis do you select DNA targets for PCR and what determines the specificity of PCR? Thanks!
1 answer
387 views
How did the landscape of new england affect how and where people lived in the late 1700s and early 1800s?
2 answers
708 views
- two identical lead spheres have a combined mass of 12kg. the density of lead is 11400 kg m-3. find the radius of each sphere.
3 answers
681 views
Hi,
i am takin a research class and i need to do a quantitative research paper. so i need help thinking of a research question or
2 answers
542 views
please paraphase this so i don't plagerize.
Nazi dictator Adolf Hitler has annexed Austria and sections of Poland,
2 answers
517 views
What is the formula that solves this problem: You are reviewing reimbursement for a Medicare surgical craniotomy case. The case
2 answers
1,077 views
What is new york's climate?
3 answers
327 views
7A-1/B^-2
3 answers
274 views
IT has to be writen using postive exponents
1 answer
309 views
a company manufactures calculators in batches of 45 and claims that the rate of defects is 4%.find the probability of getting
2 answers
1,277 views
i need help with fill in the blanks.
je ne fais pas ____ athletisme a. du b. de l' c. de d. d'
3 answers
681 views
A scuba diver's tank contains .25 kg of oxygen compressed into a volume of 4.3 L (for oxygen, 32g = 1 mole)
Calculate the gas
2 answers
943 views
Many historians argue that the vietnam war in Vietnam was a profoundly disillusioning experience for Americans. Would you agree?
2 answers
981 views
i have noo idea how to do this, please hellppppp
A 15.6 kg block is dragged over a rough, hor- izontal surface by a constant
2 answers
535 views
A woman pushes a lawn mower with a con-
stant force of 112 Newtons at an angle of 37� with respect to the horizontal. The lawn
2 answers
564 views
Part 1
A 1260 kg car accelerates uniformly from rest to 4.65 m/s in 2.6 s. Find the work done on the car in this time.Answer in
1 answer
377 views
Part 1
A block of mass 4 kg, which has an initial speed of 8 m/s at time t = 0, slides on a horizontal surface.Find the magnitude
2 answers
643 views
Part 1
A 3.0 kg block is pushed 3.0 m at a constant velocity up a vertical wall by a constant force applied at an angle of 30.0
5 answers
4,294 views
A student weighing 700 N climbs at constant
speed to the top of an 8 m vertical rope in 10 s. The average power expended by the
4 answers
3,508 views
Rosie (mass 58 kg) pushes a box with a horizontal force of 170 N (38.216 lb) at a speed
16 m/min. What is Rosie’s power output?
2 answers
776 views
Part 2
You are a pirate working for Dread Pirate Roberts. You are in charge of a cannon that exerts a force 20000 N on a cannon
1 answer
789 views
Part 1
In the 1950’s, an experimental train that had a mass of 32800 kg was powered across a level track by a jet engine that
2 answers
1,215 views
The initial kinetic energy imparted to a
0.72 kg bullet is 1777 J. The acceleration of gravity is 9.81m/s2.Neglecting air
3 answers
1,809 views
What are some examples of samples?
3 answers
297 views
Four marbles are drawn at random from a bag containing 7 black marbles and 10 red marbles. Determine the number of outcomes in
3 answers
739 views
if 25.2 g of aluminum (AW=27.0) are mixed with 125 g of sulfuric acid(MM=98.1)then how many grams of aluminum sulfate will be
3 answers
704 views
which writer satirized the narrow minded complacency and dullness of small town America, in their book main street? a.
4 answers
478 views
express the product of (2/3x^2-1/2x) and (12x+4/5) as a trinomial
1 answer
340 views
1)Which values of x are in the solution set
y=3x-1 y=x^2-5x+6 2)6ab (radical8b)-3a radical(32b^3)+9ab (radical5b) 3) write in
2 answers
374 views
Explain why the product of any two consecutive natural numbers is even.
1 answer
377 views
In a clinical trial, a drug used to reduce blood pressure caused side effects in 6% of the patients who took it. For a new rial,
1 answer
490 views
Two standard numbers cubes are thrown. Given that one of the cubes shows a two, what is the probability that the sum of the
2 answers
847 views
If the word,"if," in math mean multiply and,"is," means equal, what does the word,"was'" mean???
EX: Four times a number was 22
3 answers
413 views
An unmarked police car traveling a constant 95km/h is passed by a speeder traveling 14km/h .Precisely 2.50s after the speeder
4 answers
2,564 views
In the figure the coefficient of static friction between mass (MA) and the table is 0.40, whereas the coefficient of kinetic
3 answers
683 views
In the figure the coefficient of static friction between mass (MA) and the table is 0.40, whereas the coefficient of kinetic
2 answers
550 views
In the figure the coefficient of static friction between mass (MA) and the table is 0.40, whereas the coefficient of kinetic
1 answer
466 views
In the figure the coefficient of static friction between mass (MA) and the table is 0.40, whereas the coefficient of kinetic
5 answers
11,869 views
In the figure the coefficient of static friction between mass (MA) and the table is 0.40, whereas the coefficient of kinetic
3 answers
1,355 views
Correcting run-on sentences
1. I had the opening part, I remember it like it was yesterday ”good afternoon everyone and welcome
1 answer
380 views
6∑6(2^K-1) K=1
1 answer
266 views
What volume of oxygen would be required for the complete combustion of 23.4g of benzene, C6PO4?
1 answer
386 views
anita earned $475.54 in 2 weeks have earned the same amount of money each hour that she worked if anita worked a total of 62
1 answer
394 views
An oceanic depth-sounding vessel surveys the ocean bottom with ultrasonic waves that travel 1530 m/s in seawater. How deep is
1 answer
426 views
What volume of 0.140 M HCl is needed to neutralize 2.53g of Mg(OH)
1 answer
368 views
If 26.0mL of AgNO 3 is needed to precipitate all the Cl −ions in a 0.750-mg sample of KCl (forming AgCl), what is the molarity
4 answers
2,202 views
A sample of hydrogen chloride gas occupies 0.550L at STP. What is the pressure in atm if the volume is 7.50×10−2L at 20∘C?
2 answers
469 views
(0,0); m=2
1 answer
207 views
A graph representing the distribution of the oral temperatures of 50 healthy adult males (selected at random) would best be
1 answer
430 views
replace the underlined objects with the correct object pronoun . be sure to use se
when it is required 1/ ayer mi mama compro un
1 answer
480 views
I have to write a sentence with a polysyndenton sentence structure; is this an example of one?
ex: I was stressed because the
4 answers
503 views
how many molecules are in 5.5 moles of oxygen gas? How many atoms are in this quantity of gas?
I used dimensional analysis and
3 answers
911 views
I'm adding these three atomic weights (40.1+12.0+48.0) together, and I got 100.1
How can I round my answer to three significant
3 answers
458 views
In the sentence:"Hay muchas historias sobre dónde y cuándo Piña coladas fueron encontrar," is fueron correct? or do I use
5 answers
502 views
State if the inverse of y=x^2-4 is a function.
So, I got y= squareroot of x+4 I'm don't think it's a function because of even
3 answers
431 views
What is the cross section of a cylinder if it's cut perpendicular to the base?
It's either a rectangle or a circle but I'm not
1 answer
700 views
A recipe calls for 4 cups of flour to make a dozen cookies. How many cups of flour would be needed for 54 cookies?
2 answers
535 views
A recipe calls for 4 cups of flour to make a dozen cookies. How many cups of flour would be needed for 54 cookies?
2 answers
653 views
a bathtub is being filled at a rate of 2.5 galons per minute.the bathtub will hold 20 gallons of water how long will it take to
3 answers
659 views
how do u find the inverse of this function:
x^9*5+6
3 answers
287 views
A contractor purchases gravel one cubic yard at a time.
(a) A gravel driveway L yards long and 6 yards wide is to be poured to a
3 answers
1,846 views
Over the course of The Screwtape Letters , the state of patient’s soul fluctuates
as he experiences a conversion, doubt,
1 answer
365 views
alex is cutting 45 streamers into parts that are 5 2/3 feet long. if they are laid end to end how far will they stretch?
1 answer
373 views
A pure gold bar is made up of 19.55mol of gold. What is the mass of the bar in grams?
2 answers
654 views
name an invention or event (related to science or technology) from the past 100 years that you think has helped shape the roles
1 answer
417 views
Which of the following would increase the effect of tides on Earth (high tides get higher, low tides get lower)
- slowing the
3 answers
635 views
Which of the following would increase the effect of tides on Earth (high tides get higher, low tides get lower)
- slowing the
2 answers
503 views
In the poem "I will pronounce your name" the speaker uses sensory details to appeal to all of the following senses except:
A.
10 answers
7,781 views
in “concrete mixers “ what seems to be the speakers feelings about the concrete mixers ?
4 answers
1,018 views
Clear glass is to be recovered from a stream of mixed glass materials using a binary separator. The mixed glass stream contains
1 answer
497 views
A propane gas (C3H8) heater burns propane at a rate of 500 grams per hour.
a) What is the oxygen consumption rate? (in g O2/hr.)
2 answers
513 views
A horizontal uniform bar of mass 2.6kg and length 3.0m is hung horizontally on two vertical strings. String 1 is attached to the
4 answers
5,447 views
Find the distance from Q=(3,6,4) to the plane n ⋅⟨x,y,z⟩=2 where n=⟨3/5,4/5,0⟩.
L=?
1 answer
296 views
The plane containing the lines r1(t)=⟨1,−4,−1⟩+t⟨1,2,−2⟩ and r2(t)=⟨1,−4,−1⟩+t⟨1,0,3⟩ has scalar
3 answers
1,927 views
Suppose xy^3z^2+133=2xy−z . Compute ∂z/∂x and ∂z/∂y at the point (2,−2,3).
1 answer
444 views
Jessica and Matthew are running toward the point P along the straight paths that make a fixed angle of θ (Figure 1). Suppose
4 answers
2,796 views
You weigh 730 N.
What would you weigh if the Earth were two times as massive as it is and its radius were six times its present
3 answers
2,144 views
On the way to the moon, the Apollo astronauts reach a point where the Moon’s gravitational pull is stronger than that of
4 answers
3,519 views
Find a parameterization for the curve (1,2) and (4,5).
r(t)=<_,_,_,> where _<t<_
1 answer
346 views
Show that the projection into the xy-plane of the curve of intersection of the parabolic cylinder z=1−2y^2 and the paraboloid
3 answers
2,558 views
Calculate the velocity and acceleration vectors, and speed for r(t)=⟨cos(6t),sin(t),sin(6t)⟩ when t=5π/6 .
4 answers
1,642 views
Given the matrix
A= a 6 5 a -8 8 7 9 a find all values of a that make |A|=0. Give your answer as a comma-separated list.
4 answers
8,688 views
Perform the following operation:
[ a 1-a [ 5 4 -1 1+a -a ] 3 -3 0 ] Note: The entries in the resulting matrix are functions of a.
1 answer
387 views
The oracle function f(x,y) is presented below. For each point (x,y) you enter the oracle will tell you the value f(x,y).
4 answers
2,891 views
The figure below shows some level curves of a differentiable function f(x,y). Based only on the information in the figure,
3 answers
958 views
Find the critical point of the function f(x,y)=2e^x−4xe^y.
4 answers
2,204 views
Find the absolute maximum and minimum of the function f(x,y)=ysqrt(x)−y^2−x+3y on the domain 0≤x≤9, 0≤y≤6.
3 answers
1,242 views
Find the absolute maximum and absolute minimum of the function f(x,y)=2x^3+y^4 on the region {(x,y)|x^2+y^2≤25}.
1 answer
410 views
Find the maximum and minimum values of the function f(x,y,z)=x+2y subject to the constraints y^2+z^2=225 and x+y+z=1. Maximum
2 answers
639 views
Given the following general reaction:
A + 2B + 3C -> P + 4Q. Show how the change in concentration of C with time is related to
3 answers
567 views
Let f(x,y)=(x-1)/(2x+y).
Find the domain of f.
4 answers
379 views
Fine the contours f(x,y)= k for the k e {-1,0,1,2}. Plot these contour curves using solid line type. Clearly label the curves
1 answer
364 views
Values of f(x,y) are given in the table below. Let R be the rectangle 1≤x≤1.6, 2≤y≤3.2. Find a Riemann sum which is a
5 answers
3,844 views
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