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2009
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Questions Asked on November 17, 2009

The height, h, in metres, above the ground of a rider on a Ferris wheel can be modelled by the equation:h= 10 sin ((pi/15 t) -
1. 1 answer
2. asked by -
3. 5,264 views
A spring has k = 88 N/m. Use a graph to determine the work needed to stretch it from x = 3.6 cm to x = 5.6 cm, where x is the
1. 3 answers
2. asked by frank
3. 4,468 views
why cant the molecule C2H6N exists?
1. 3 answers
2. asked by rose
3. 3,736 views
I am soooo confused! I was given this PdCl4^2-(aq)+Cd(s)----Pd(s)+4Cl^-(aq)+Cd^2+ I am supposed to give the 1/2 reaction for The
1. 1 answer
2. asked by Christie
3. 2,977 views
Which of the following ratios would be the best way to determine how customers are paying for their purchases?a) Total asset
1. 1 answer
2. asked by jessica
3. 2,537 views
How many bromine molecules, Br2, have a mass equal to 31.8 g?
1. 1 answer
2. asked by gloria
3. 2,388 views
If you are given a .26g piece of sodium metal to react compltetely with water, how many moles of HCl would it take to neutralize
1. 2 answers
2. asked by Jmhitt
3. 2,128 views
what is a compound sentence
1. 5 answers
2. asked by GALE
3. 1,919 views
Mario replaced 72 tires on the small and large trucks in his fleet. He replaced 3 times as many tires on the large trucks as on
1. 3 answers
2. asked by Izzy
3. 1,760 views
19. The spread of Hinduism, Buddhism, and Islam throughout Southeast Asia best exemplifies what geographic theme?a. movement b.
1. 3 answers
2. asked by mysterychicken
3. 1,700 views
A block of wood with volume V floats in water with 0.68V submerged. In oil the block floats with 0.86V of its volume submerged.W
1. 2 answers
2. asked by Ray
3. 1,675 views
Question: Balance the following reactions by the oxidation number method.a) I2 + HNO3 --> HIO3 + NO2 + H2O so i have N +5 to +4
1. 2 answers
2. asked by Ron
3. 1,599 views
Write the numeral in base ten. 42five.I think the answer is 42 because it contains 4 tens an 2 ones. Is that right?
1. 1 answer
2. asked by Anonymous
3. 1,580 views
A 10cm times 10cm times 10cm wood block with a density of 700kg/m^{3} floats in water. What is the distance from the top of the
1. 4 answers
2. asked by ana
3. 1,532 views
Which of the following does NOT describe a suspension?A)particles are soluble B)particles settle out over time C)particles can
1. 1 answer
2. asked by Katherine
3. 1,474 views
A basketball player is trying to make a half-court jump shot and releases the ball at the height of the basket. Assuming that
1. 2 answers
2. asked by emm
3. 1,410 views
Write an algebraic expression for each word expression:3.8 times a number z
1. 3 answers
2. asked by Anonymous
3. 1,374 views
The volume of a cone of radius r and height h is given by V=1/3pir^2h. If the radius and the height both increase at a constant
1. 1 answer
2. asked by jaden
3. 1,252 views
You are selling tickets for a high school concert. Student tickets cost $4 and general admission tickets cost $6. You sell 450
1. 1 answer
2. asked by Liam
3. 1,214 views
The 66 kg man's hands in Figure 9-56 are 36 cm apart. His CG is located 90% of the distance from his right hand toward his left.
1. 0 answers
2. asked by ken
3. 1,207 views
How do you do arrays and an expanded algorithm. 23 X 17?
1. 3 answers
2. asked by Thomas
3. 1,192 views
1. I'm going to try an English club.2. I am going to join an English club. (When we use 'try' as in #1, what is the difference
1. 1 answer
2. asked by rfvv
3. 1,182 views
as you push a lawnmower the horizontal force is 300 N. If you push the mower a distance of 500 m, how much work do you do?
1. 4 answers
2. asked by sophie
3. 1,174 views
Explain why the top of a commercial 1.5 V dry cell battery is always marked with a plus sign.
1. 1 answer
2. asked by Ron
3. 1,132 views
In printing an article of 48,000 words, a printer decides to use two sizes of type. Using the larger type, a printed page
1. 1 answer
2. asked by Shawna
3. 1,117 views
Consider the following projects, for a firm using a discount rate of 10%:project NPV IRR PI A $200,000 12.2% 1.04 B $200,001 11%
1. 0 answers
2. asked by Kaylee
3. 1,097 views
a libraian lifts a box of books that weighs 93 N a distance of 1.5 m. How much work does he do?
1. 1 answer
2. asked by sophie
3. 1,073 views
what are three ways to make a sugar cube dissolve more quickly in water
1. 2 answers
2. asked by Katherine
3. 1,052 views
do people have to be highly competitve in ordr to succeed?Today, people keep improving ability to be competitive in order to
1. 2 answers
2. asked by jessica
3. 1,046 views
Consider the function f(x)=12x^5+30x^4–300x^3+2. f(x) has inflection points at (reading from left to right) x=D,E, and F.
1. 3 answers
2. asked by Kay
3. 1,015 views
A shop sign weighing 230 N is supported by a uniform 115 N beam as shown in Fig. 9-54. Find the tension in the guy wire.
1. 2 answers
2. asked by charlse
3. 1,015 views
Calculate S (measure of total entropy) for the following reaction at 25C and 1atm, and tell whether the entropy is increasing or
1. 1 answer
2. asked by Christina
3. 994 views
A diamond contains 0.090 moles of carbon what is the mass of the diamond
1. 2 answers
2. asked by sparkle
3. 992 views
What is the minimum wavelength of light that can promote an electron from the valence band to the conduction band in silicon?
1. 1 answer
2. asked by Sam
3. 989 views
* A project contains Initiation, Analysis, Design, and Implementation phases.How do we determine what tasks are assigned to each
1. 1 answer
2. asked by JIM
3. 926 views
A massless string runs around two massless, frictionless pulleys. An object with mass m = 20 kg hangs from one pulley. A force F
1. 1 answer
2. asked by m2a
3. 921 views
what is the difference between a savings-surplus sector and a saving-deficit sector?
1. 0 answers
2. asked by navid
3. 913 views
What can particles in solution NOT do because ther are so small
1. 1 answer
2. asked by Katherine
3. 846 views
Two identical cars hit each other and lock bumpers. If a car moving with a speed of 90km/h approaches a stationary car, what is
1. 1 answer
2. asked by M. Malone
3. 838 views
How did Bull Market it affect investment actities of americans?
1. 1 answer
2. asked by Marquice
3. 836 views
How did the two compromises reached during the Constitutional Convention satisfy competing groups?
1. 3 answers
2. asked by jalen
3. 829 views
factor the expressionx(a+2) - 2(a+2) i missed this day because i was sick...please explain!
1. 2 answers
2. asked by Jorge
3. 825 views
When finding empirical formula of a compound, why do you have to convert the elements into moles, as opposed to using a
1. 1 answer
2. asked by Nicky
3. 811 views
write a quotient that gives the same answer as 4.65 divided by 0.12
1. 3 answers
2. asked by Anonymous
3. 802 views
The skydiver had fries and a milkshake. Why was he nervous?.
1. 7 answers
2. asked by Girlie
3. 785 views
Question: Balance the following reactions by the oxidation number method.a) I2 + HNO3 --> HIO3 + NO2 + H2O b) MnO4- + H+ + Cl-
1. 1 answer
2. asked by Ron
3. 776 views
Approximately what force, FM, must the extensor muscle in the upper arm exert on the lower arm to hold a 7.9 kg shot put (Fig.
1. 0 answers
2. asked by kwame
3. 775 views
Bit confused about this question. especially a and b. Not really sure which values to use or how.Thanks! A solution is made by
1. 1 answer
2. asked by Anonymous
3. 766 views
a chunk of silver has a heat capacity of 42.8J/degrees celcius and a mass of 181g. calculate the specific heat of silver.
1. 2 answers
2. asked by joshua
3. 756 views
a stone of mass o.5 kg is dropped from a height of 5om.what is the kinetic energy of the stone just before it strikes the
1. 1 answer
2. asked by cathy
3. 737 views
A small block on a frictionless horizontal surface has a mass of 2.50×10−2 . It is attached to a massless cord passing
1. 1 answer
2. asked by Anonymous
3. 735 views
Define Osmosis and identify examples in which the human body uses osmosis.
1. 1 answer
2. asked by Tammy
3. 725 views
The trapezoid in Exam Figure 6 has equal nonparallel sides. The upper base is 6, the lower base is 16, and the diagonal is 12.
1. 0 answers
2. asked by crystal
3. 722 views
How many tiles measuring 10cm x 10cm will you need to cover a bathroom floor that measures 3m x 5m?
1. 5 answers
2. asked by Chelsea
3. 719 views
Two minor league baseball players got a total of 252 hits in the season . Washington had 16 more than Sanchez find the number of
1. 2 answers
2. asked by Wayne
3. 711 views
Two people push on a crate. Person 1 pushes in the positive X direction with a force of 25N. The second person pushes in the
1. 1 answer
2. asked by Scott
3. 706 views
A 13 cm long animal tendon was found to stretch 3.8 mm by a force of 13.8 N. The tendon was approximately round with an average
1. 0 answers
2. asked by emma
3. 703 views
Determine the work done by a person when lowering an object of mass 2.6 kg by a distance of 2.4 m. The person applies a force
1. 1 answer
2. asked by Nikita
3. 702 views
what was the main "point of contention" between Texas and Mexico after independence?
1. 2 answers
2. asked by kim
3. 697 views
use the substitution method to solve the linear system.1. 3x=9 -x+2y=9 3x/3 = 9/3 x = 3 -x(3)+2y = 9 -3+2y = 9 2y = 12 y = 6 is
1. 1 answer
2. asked by jenn
3. 695 views
Water flowing through a 2.8 cm-diameter pipe can fill a 200 L bathtub in 5.8 min.Flow rate Q = volume/time = speed * cross
1. 3 answers
2. asked by ana
3. 687 views
If the parents are PPLLXppll, then the F1 generation is PpLl.Say that the F1 generation is crossed with PPLL. It would be a
1. 1 answer
2. asked by Anonymous
3. 684 views
An aluminum saucepan with a diameter of 18 cm and a height of 6.0 cm is filled to the brim with water. The initial temperature
1. 2 answers
2. asked by jawn
3. 682 views
What makes our earth sick?- Steel cans make the earth sick. - Shampoo makes the earth sick. - Empty bottles make the earth sick.
1. 1 answer
2. asked by rfvv
3. 669 views
Explain the differences between the inside and outside of a river bend, in terms of both, depth of water, speed of river flow,
1. 1 answer
2. asked by Namra
3. 664 views
Noah and Brianna went to calculate the distance between their houses which are opposite sides of a water park. They mark a
1. 0 answers
2. asked by Gillian
3. 662 views
Which three of these points would be the best to use in my body paragraphs for my essay on Being an only child has more
1. 8 answers
2. asked by y912f
3. 657 views
A block of mass M=2 kg is swung on a rope in a veritcal circle(the direction of motion is vertical to the ground) of radius r.
1. 2 answers
2. asked by Holly
3. 656 views
by stirring a gas in a liquid,its solubility does it speed up or slow down n the dissolving process............PLEASE HELP ITS
1. 2 answers
2. asked by Anonymous
3. 654 views
a stone of mass o.5 kg is dropped from a height of 5om.what is the kinetic energy of the stone just before it strikes the ground
1. 1 answer
2. asked by cathy
3. 653 views
A uniform horiztonal beam is attached to a veritcal wall by a frictionless hinge and supported from below at an angle theta = 39
1. 0 answers
2. asked by SP
3. 646 views
A pendulum consists of an object of mass m = 1 kg swinging on a massless string of length l = 258 cm. The object has a speed of
1. 2 answers
2. asked by Leah
3. 645 views
Canada is a major producer of aluminum by the electrolysis of bauxite. However, there are no bauxite mines in Canada, and all
1. 1 answer
2. asked by Ron
3. 643 views
I need help on this question79 g of water at 95 degree Celsius were added to tap water at 22 degree Celsius, and the Temperature
1. 3 answers
2. asked by Andrew
3. 643 views
Hi, i really need help with this question.Two identical cars hit each other and lock bumpers. A car moving with a speed of 90
1. 5 answers
2. asked by Axel
3. 625 views
(I answered a couple of them but am not confident on my answers, so can you please tell me if my answers are not correct to the
1. 4 answers
2. asked by LeAnn/URGENT
3. 625 views
A 10cm times 10cm times 10cm wood block with a density of 700kg/m^{3} floats in water. What is the distance from the top of the
1. 1 answer
2. asked by ana
3. 623 views
what are personal experiences high school students face in life?
1. 12 answers
2. asked by jasmine
3. 622 views
Research the Bacardi website. Using your research findings from the Library and the Internet, develop both an EFAS (External
1. 1 answer
2. asked by NeNe
3. 621 views
Chase Quinn wants to expand his cut-flower business. He has 12 additional acres on which he intends to plant lilies and
1. 0 answers
2. asked by Tara
3. 618 views
A pendulum consists of an object of mass m = 1.2 kg swinging on a massless string of length l = 259 cm. The object has a speed
1. 1 answer
2. asked by m2a
3. 617 views
At work one day Erica received 55 packages. Speedy Delivery delivered 4 times as many as Ralph Express delivered while Ralph
1. 1 answer
2. asked by Wayne
3. 613 views
Suppose that the average grade for all people who take this course in statistics is 83 with a standard deviation of 3.5. If your
1. 1 answer
2. asked by Terra
3. 609 views
Determine the work done by a person when lowering an object of mass 2.6 kg by a distance of 2.4 m. The person applies a force
1. 2 answers
2. asked by Nikita
3. 608 views
1.You are riding your bike and you slow down to turn a corner.A.Changing Velocity B.Acceleration 2.Your are seated in a stopped
1. 1 answer
2. asked by Anonymous
3. 605 views
To understand the relevance of ethical theories to current organizational situations, apply these theoretical perspectives to at
1. 4 answers
2. asked by Anonymous
3. 604 views
Describe the conditions necessary, where circle A has a larger radius than circle B, for the two circle to have no points of
1. 0 answers
2. asked by Anonymous
3. 603 views
5. The bacteria population doubles every 10 hours. How long will it take to triple the initial amount? (Use log 3 / log 2 =
1. 0 answers
2. asked by Emily
3. 600 views
The MorTex Company assembles garments entirely by hand even though a textile ma-chine exists that can assemble garments faster
1. 3 answers
2. asked by eric
3. 596 views
A meteor headed straight towards the earth has an approach speed of 2.00e3 m/s at a distance of 7 earth radii from the center of
1. 1 answer
2. asked by Andy
3. 595 views
Water flowing through a 2.8 cm-diameter pipe can fill a 200 L bathtub in 5.8 min.Flow rate Q = volume/time = speed * cross
1. 2 answers
2. asked by ana
3. 594 views
I need help with this question and would really apprecitae it the helpWhat are three feutures of a lyric poem? Explain how "Song
1. 1 answer
2. asked by Hana
3. 593 views
About twenty radioisotopes with ultra-long half-lives, from 82 million years (244- Plutonium) to 6 million billion years
1. 1 answer
2. asked by Allie
3. 590 views
How many grams of water (H_2O}) have the same number of oxygen atoms as 1.0mol of oxygen gas?
1. 1 answer
2. asked by ana
3. 580 views
a teacher does 140 J of work in 20 s. How much power did he use?
1. 2 answers
2. asked by sophie
3. 578 views
A circle is inscribed in a square. The number of square units in the area and the number of units in the perimeter of the square
1. 1 answer
2. asked by Shayne
3. 577 views
In a mechanical experiment with an isolated object, only Ekin and Epot of the object change. If the object accelerates from 5
1. 1 answer
2. asked by Nikita
3. 568 views
Identify at least three problems facing the Federal Reserve in achieving its goals of monetary policy.
1. 1 answer
2. asked by Anonymous
3. 565 views
I have a problem where I've solved a and b. I need to solve c.It's a centripetal force problem. So far I have. v(speed)=2.5pi
1. 1 answer
2. asked by Jill
3. 564 views
An object of mass 0.7 kg is thrown vertically upwards at a speed of 23 m/s. What is the gravitational potential energy of the
1. 1 answer
2. asked by Nikita
3. 561 views

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