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2012
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Questions Asked on October 14, 2012

A metal cylindrical container with an open top is to hold 1 cubic foot. If there is no waste in construction, find the
1. 4 answers
2. asked by Elizabeth
3. 7,293 views
A ball of mass 522 g starts at rest and slides down a frictionless track, as shown below. It leaves the track horizontally,
1. 2 answers
2. asked by Angela
3. 6,902 views
An 18 m tall tree is broken during a severe storm. The distance from the base of the trunk to the point where the tip touches
1. 3 answers
2. asked by Hanu2012
3. 5,980 views
A 57 kg boy and a 45 kg girl use an elastic rope while engaged in a tug-of-war on a frictionless icy surface.If the acceleration
1. 1 answer
2. asked by Jessica
3. 5,607 views
In the figure below, a constant force of magnitude 82.0 N is applied to a 2.55 kg shoe box at angle = 64.5°, causing the box to
1. 1 answer
2. asked by Anonymous
3. 5,366 views
1. Which of the following quotations is the best example of a paradox?(1 point)“I’ll drain him dry as hay. . . ” “Lesser
1. 7 answers
2. asked by Kelsey
3. 4,687 views
what is the density of a billiard ball that has a volume of 100cm cubed and a mass of 250g?
1. 5 answers
2. asked by karra
3. 4,107 views
John drives to work each morning and the trip takes an average of μ = 38 minutes.The distribution of driving times is
1. 4 answers
2. asked by Robbie
3. 3,944 views
Two forces are the only forces acting on a 7.8 kg object which moves with an accelera- tion of 4.5 m/s2 in the positive y
1. 2 answers
2. asked by Jessica
3. 3,927 views
Approximately what electronegativity difference would you expect for a polar covalent bond?
1. 1 answer
2. asked by Boo Boo
3. 3,733 views
The height, h(t), of a projectile, in metres, can be modelled by the equationh(t) = 14t – 5t2, where t is the time in seconds
1. 3 answers
2. asked by colin
3. 3,648 views
In Case A the mass of each block is 4.8 kg. In Case B the mass of block 1 (the block behind) is 9.6 kg, and the mass of block 2
1. 1 answer
2. asked by robert
3. 3,448 views
What is wrong with the following statements?a) For a large n, the distribution of observed values will be approximately Normal
1. 1 answer
2. asked by ami
3. 3,420 views
When a wooden log burns it is essentially undergoing a combustion reaction. Explain why the ashes that form when a log burns
1. 2 answers
2. asked by Jazmine
3. 3,355 views
Which of the following statements about projectile motion is not correct?a)The acceleration is constant and in one direction.
1. 2 answers
2. asked by Lewis
3. 3,344 views
Consider the collisions between a car and a truck whose weight is much heavier than the car (M ≫ m). Friction is so small that
1. 1 answer
2. asked by Amelia
3. 3,063 views
A solution is 0.10M Pb(NO3)2 and 0.10M AgNO3. If solid NaCl is added to the solution what is [Ag+] when PbCl2 begins to
1. 1 answer
2. asked by Fred
3. 3,057 views
Zn|ZnCl2(0.00165 M)||CuSO4(0.0125 M)|CuFind Ecell taking activities into account.
1. 1 answer
2. asked by amanda1012
3. 3,013 views
The standard molar Gibbs free energy of formation of NO2 (g) at 298 K is 51.30 kJ · mol−1 and that of N2O4 (g) is 97.82 kJ ·
1. 1 answer
2. asked by sam
3. 2,941 views
A researcher wishes to estimate with 95% confidence the proportion of adults who have high speed internet access. Her estimate
1. 3 answers
2. asked by Diana
3. 2,904 views
If the endpoints of the diameter of a circle are (3, 1) and (6, 5), find the length of the diameter.
1. 2 answers
2. asked by Melissa
3. 2,785 views
What z-score values form the boundaries for the middle 60% of a normaldistribution? a. z = +0.25 and z = –0.25 b. z = +0.39
1. 2 answers
2. asked by Robbie
3. 2,771 views
The value of a new car decreases exponentially.Suppose your mother buys a new car for 22,000. The value of the car decreases by
1. 1 answer
2. asked by john
3. 2,659 views
A vertical line is drawn through a normal distribution at z = 0.50, and separates thedistribution into two sections. What
1. 2 answers
2. asked by Robbie
3. 2,630 views
Assuming that Ka is 1.85 *10-5 for acetic acid, calculate the pH at one-half the equivalence point and at the equivalence point
1. 1 answer
2. asked by Kenetria
3. 2,600 views
A pile driver pounds a steel column into the ground. On the first drive, the column is pounded 1.65 metres into the ground, and
1. 1 answer
2. asked by Student
3. 2,544 views
what is the shape of a molecule if the central atom has two bonded atoms and two lone pairs
1. 1 answer
2. asked by Boo Boo
3. 2,345 views
A particle moves along a horizontal line so that at any time t its position is given by x(t)=cost-t. Time is measured in seconds
1. 1 answer
2. asked by Rudy
3. 2,276 views
Starting from rest, a 11.50 kg suitcase slides 3.18 m down a frictionless ramp inclined at 40° from the floor. The suitcase
1. 2 answers
2. asked by Angela
3. 2,198 views
a man left 1\2 of his estate to his wife, 1\6 to his daughter, and the remainder an amount of $15,000, to his son. How large was
1. 1 answer
2. asked by nheil
3. 2,061 views
Oasis B is a distance d = 8.0 km east of oasis A, along the x axis shown in the figure. A confused camel, intending to walk
1. 3 answers
2. asked by Anonymous
3. 1,890 views
Calculate the number of moles of KIO3 consumed by reaction (2.1). Remember, it is the limiting reagent. Using this information,
1. 2 answers
2. asked by senko
3. 1,862 views
Supplier on-time delivery performance is critical to enabling the buyer’s organization to meet its customer service
1. 2 answers
2. asked by Priya
3. 1,807 views
I need the definition for the following words:Fort Laramie Treaty Interstate Railroad Geronimo I know I have my textbook but
1. 1 answer
2. asked by Laruen
3. 1,762 views
use the given zero to find the remaining zeros of the function.h(x)=x^4-12x^3+36x^2+68x-525 zero:4-3i
1. 1 answer
2. asked by ladybug
3. 1,739 views
A right triangle is formed in the first quadrant by the x- and y-axes and a line through the point (3,2). write the length L of
1. 1 answer
2. asked by Solta
3. 1,703 views
Which one of the following statements is true for the base forms of verb? A. when the subject of a sentence is singular, add
1. 5 answers
2. asked by amanda
3. 1,653 views
The doubling time of a city's population is 17 years. How long does it take for the population to quadruple?
1. 3 answers
2. asked by Sam
3. 1,645 views
One side of a right triangle is known to be 45 cm long and the opposite angle is measured as 30°, with a possible error of
1. 1 answer
2. asked by Ansley
3. 1,631 views
b) If the car is moving much faster than the heavier truck when they collide, what best describes the size (or magnitude) of the
1. 1 answer
2. asked by Amelia
3. 1,494 views
A car is traveling at 60.6 mph on a horizontal highway. The acceleration of gravity is 9.8 m/s2. If the coefficient of friction
1. 1 answer
2. asked by Anonymous
3. 1,464 views
A gray kangaroo can bound across a flat stretch of ground with each jump carrying it 11 from the takeoff point.If the kangaroo
1. 1 answer
2. asked by anonymous
3. 1,425 views
A fiel is in the shape of a right triangle. The fence around the perimeter of the field measures 40 m. If the length of the
1. 2 answers
2. asked by hanu2012
3. 1,417 views
7)State whether the following sentences are true or false. Rewrite them if they are false.a) Every chemical reaction taking
1. 0 answers
2. asked by Nicole
3. 1,273 views
I am confuse about this one question can some one please help me.The Navy wants a new airplane launcher for their aircraft
1. 0 answers
2. asked by Janki Patel
3. 1,262 views
calculate how to make 10 mL of 15:85 ethyl acetate:hexane solutionfrom 2 mL of 5:95 ethyl acetate:hexane, using pure hexane and
1. 0 answers
2. asked by Jess
3. 1,238 views
A chemical reaction takes place in a containerof cross-sectional area 100 cm2 . As a result of the reaction, a piston is pushed
1. 1 answer
2. asked by valerie
3. 1,237 views
Two children who are bored while waiting for their flight at the airport decide to race from one end of the 20 -long moving
1. 1 answer
2. asked by anonymous
3. 1,208 views
How many integers bewteen 200 and 500 inclusive leave a remainder 1 when divided by 7 and a remainder 3 when divided by 4?Find
1. 0 answers
2. asked by Annie
3. 1,203 views
Consider the reactionPCl3(ℓ) → PCl3(g) at 298 K. If ∆H◦ is 32.5 kJ/mol, ∆S ◦ is 93.3 J/K mol, and ∆G ◦ is 4.7
1. 1 answer
2. asked by Aust
3. 1,178 views
x+2y+5z=-12x-y+z=z 3x+4y-4z=14 solve the system using linear combination method.
1. 1 answer
2. asked by Erin
3. 1,151 views
A 2.622 g sample of almond is ignited and used to melt ice in a can.a. if the almond sample melted 15.24g of ice,What is the
1. 0 answers
2. asked by adonis
3. 1,142 views
A 6 g bullet leaves the muzzle of a rifle with a speed of 333.3 m/s.What constant force is exerted on the bullet while it is
1. 1 answer
2. asked by Jessica
3. 1,134 views
1.In one dimensional motion, instantaneous speed v satisfies0 ≤ v < v0. (a) The displacement in time T must always take
1. 3 answers
2. asked by help me out it's urgent
3. 1,123 views
In Jerry Spinelli's book Milkweed does fox furs with beady black eyes symbolize the Gypsys?
1. 0 answers
2. asked by Anonymous
3. 1,118 views
A 1010 kg geosynchronous satellite orbits a planet similar to Earth at a radius 1.97 × 105 km from the planet’s center. Its
1. 1 answer
2. asked by Abby
3. 1,104 views
We left King ranch on a december day in 1873. On the Santa Fe trail, we hit bad weather. The Red river was flooded and it took
1. 3 answers
2. asked by amanda
3. 1,084 views
if n=45, calculate the number of cosets of An in Sn .
1. 3 answers
2. asked by Anonymous
3. 1,059 views
GIFT OF THE NILE1. What would be the main mineral resource in lower Egypt?
1. 1 answer
2. asked by xavier
3. 1,052 views
a person standing on a moving escalator is moving relative to another person standing on the escalator true or false?
1. 1 answer
2. asked by Anonymous
3. 1,052 views
when testing for a fever, what is the true positive rate for a thermometer that always reads 105 F? What is the false positive
1. 0 answers
2. asked by Z
3. 1,047 views
The combustion of 132 g of propane, C3H8, with excess oxygen liberates 6.6x10^3 kj of heat. What is the enthalpy change for the
1. 1 answer
2. asked by Kay
3. 1,018 views
A 500 mL sample of solution of H2SO4 was titrated with 60 mL of 1.5 M KOH. What was the molarity of the H2SO4 sample?
1. 1 answer
2. asked by Lisa Davies
3. 1,007 views
X-5/3 =1Or X - 5 = 1 ______ 3 I'm trying to type and tell you it's x-5 over 3 equals 1 I don't know how to do I think I have to
1. 4 answers
2. asked by Marco
3. 1,004 views
Explain what is wrong with the following sentence and make any corrections if necessary: “Neither the mouse nor the rats could
1. 1 answer
2. asked by cathy
3. 997 views
Four forces act on a hot-air balloon, shown from the side in the figure below. Find the magnitude and direction of the resultant
1. 1 answer
2. asked by Dakota
3. 995 views
Can you check2x + 3 (x-2) -3 (x-6) I got 2x+3x-6 -3x+18 2x+3x-3x= 2x -6+18 =12 Final answer : 2x+ 12
1. 2 answers
2. asked by Marco
3. 981 views
In the book, "The Memory Keeper's Daughter" by Kim Edwards, after Norah has successfully destroyed the wasps' nest, Edwards
1. 1 answer
2. asked by Crystal
3. 956 views
A skier of mass 74.5 kg is pulled up a slope by a motor-driven cable. How much work is required to pull the skier 55 m up a 31°
1. 1 answer
2. asked by Angela
3. 928 views
Could someone help be understand the general addition rule for probability? It says P(A or B)= P(A)+P(B) - P(A and B). But I get
1. 0 answers
2. asked by Jim
3. 918 views
when testing for a fever, what is the true positive rate for a thermometer that always reads 105 F? What is the false positive
1. 0 answers
2. asked by Z
3. 913 views
Rusell finished 6 out of 10 homework questions. which fraction shows how much of the homework he finished?
1. 2 answers
2. asked by Gilberto
3. 912 views
which of the following is an example of a proportional relationship between x and y?A. y = 2 B. y = 3x C. 4y + 4x = 6 D. 4y - 2
1. 3 answers
2. asked by morgan
3. 909 views
a) You have two forces, 105.5 N and 61.5 N. What is the magnitude of their resultant if the first acts upward and the second
1. 1 answer
2. asked by Jessica
3. 882 views
The Great Pryamid of Cheops has a square base of 771ft. on a side and a height of 4186ft. How many rooms 35ft x 20ft x 8ft would
1. 1 answer
2. asked by Cindy
3. 880 views
Sum of4th and the 6th terms of an a,p is 42 . While the sum of the 3rd and 9th terms of the same a.p is 52. Find the (a) first
1. 2 answers
2. asked by Terfa sakaa
3. 848 views
Triangle with vertices:D(-18,12) E(-6,-12) F(12,6) Show that the right bisectors of the sides of triangleDEF all intersect at
1. 2 answers
2. asked by Anonymous
3. 843 views
An indoor physical fitness room consists of a rectangular region with a semicircle on each end. The perimeter of the room is to
1. 1 answer
2. asked by Laquisha
3. 835 views
What is the concentration of Cu2+ in a solution that is 0.10 M Cu(NH3)4^2+? (Kf = 1.2 x 10^12)The answer is 8.0 x 10^-4 How do I
1. 1 answer
2. asked by Kelly
3. 825 views
You have been given the following information on a project:It has a 3-year lifetime The initial investment in the project will
1. 0 answers
2. asked by j
3. 811 views
Calculate the entropy change when 2.42 g ofH2 reacts with O2 according to the reaction 2 H2(g) + O2(g) → 2 H2O(ℓ) at 298 K
1. 1 answer
2. asked by sam
3. 804 views
ms. sue for the book catcher in the rye i am being ackley describing holden, and i choose the 2nd incident when holden goes to
1. 3 answers
2. asked by Mohammad
3. 803 views
a 4 m by 3 m rectangular floor is covered by 300 square floor tiles. What is the side length of each tile?
1. 1 answer
2. asked by Anonymous
3. 795 views
ACROSS1. Forty more than 24- Down ~ Nine more than 3-Down Two less than I-Down 7q to ;;l = '" 7. Five times 14-Down 8. 3-Across
1. 1 answer
2. asked by Naomi
3. 789 views
A scraper is drawn over a tooth 22 times, each time moving a distance of 0.75 cm. The scraper is held against the tooth with a
1. 2 answers
2. asked by Mollie
3. 777 views
if log base 10 of 2 = .301then what is log base of 10 of 2000? I know how to solve with a calculator but I'm having a hard time
1. 3 answers
2. asked by Sam
3. 764 views
What is the average velocity in the following cases? You run 77.9 m West at 2.67 m/s then walk for 133 s at 8.78 m/s West.
1. 1 answer
2. asked by Dasha
3. 762 views
I need the definition for the following words:Sacramento vein national grange Roundups Treaty of Guadalupe Hidalgo Fort Laramie
1. 4 answers
2. asked by Laruen
3. 761 views
Block A and Block B in the figure below are connected by a string of negligible mass. There is a force on A with a magnitude of
1. 1 answer
2. asked by Sam
3. 732 views
Combining Like Terms1. 3a + a = 16 2. 9x - 3x = 30 3. 5w + 3w = 24 I really need help with this, can you at least do one or two
1. 7 answers
2. asked by Laruen
3. 717 views
A small plane is 150km south of the equator. The plane is flying at 220km/h at a heading of 30 degrees to the west of north. In
1. 1 answer
2. asked by Cassie
3. 714 views
the question is a stock gained 2 7/8 points, lost 1 3/4 points and then gained 1/2 point and then lost 5 points. What was the
1. 1 answer
2. asked by b6
3. 713 views
Assume that the average annual salary for a worker in the United States is 300,000- and that the annual salaries For Americans
1. 1 answer
2. asked by Ann
3. 710 views
how to create a thesis statment for a limited subject my mother and the general subject is family
1. 1 answer
2. asked by aya
3. 693 views
Hypothetically a pebble rolls off the roof edge of Golden Eagle Arena and falls vertically. Just before it reaches the ground,
1. 1 answer
2. asked by Anonymous
3. 688 views
If a projectile is fired straight up at a speed of 13m/s. How long does it take to reach the top of its motion? If the
1. 1 answer
2. asked by jessica
3. 686 views
A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. The total
1. 1 answer
2. asked by Sara
3. 683 views
A firm uses a single plant with costs C = 160 + 16Q + .1Q2 and faces the price equation P = 96 - .4Q.a. Find the firm’s
1. 0 answers
2. asked by Philip
3. 679 views
jay heated 120mL of water that was 20 degrees celsius to 80 degrees celsius. a)how much did the temperature of water change?b)
1. 0 answers
2. asked by Johna
3. 671 views
There are three pieces of rope with the lengths 15 1/3feet, 20 1/2 feet, and 30 3/4 feet.A) how many yards in all? B) If thery
1. 4 answers
2. asked by b6
3. 654 views

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