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October 28, 2012
calculate the change in pH when 9.00ml of 0.100M HCl(aq) is added to 100.0mL of a buffer solution that is 0.100M in NH3(aq) and
1 answer
asked by
mike
11,272 views
The organic compound di-n-butyl phthalate, C16H22O4(l), is sometimes used as a low-density (1.046 g·mL–1) manometer fluid.
3 answers
asked by
Garcia
10,445 views
1. 48 c = __ qt (1 point)
6 8 10 12 2. 96 oz __ 5 lb (1 point) < > = 3. 6 yd, 1 ft = __ ft (1 point) 7 12 19 36 4. lb = __ oz (1
34 answers
asked by
peter
7,023 views
c)The price (in dollars) p and the quantity demanded q are related by the equation: p2+2q2=1100.
If R is revenue, dR/dt can be
1 answer
asked by
chamberlain
6,081 views
Determine the maximum number of electrons that can have each of the following designations.
2f,1Py,2Pz,5dyz,6f
4 answers
asked by
Farha
5,920 views
How many kilojoules of heat are released when 38.6g of CH4 reacts completely with O2 to form CH3OH at constant pressure?
3 answers
asked by
Jamie
5,919 views
during a sale at the local department store, you buy three sweatshirts and two pairs of sweatpants for $85.50. later you return
3 answers
asked by
Katelyn
5,209 views
Container A holds 752 mL of ideal gas at 2.40 atm. Container B holds 179 mL of ideal gas at 4.80 atm. If the gases are allowed
6 answers
asked by
Garcia
4,434 views
Each base of an isosceles triangle measures 42 degrees, 30'. The base is 14.6 meters long.
a. Find the length of a leg of the
1 answer
asked by
Sofia
4,358 views
Points A and B are separated by a lake. To find the distance between them, a surveyor locates a point C on
land such that ÐCAB =
1 answer
asked by
glenna
4,173 views
what is the Sample Locality Age (Million years)in Granite: Scottish Highlands, Gabbro: Sudbury Canada and Gneiss: Greenland?
6 answers
asked by
john
3,244 views
The drawing shows an intravenous feeding. With the distance of 0.610 m, nutrient solution (ρ = 1010 kg/m3) can just barely
1 answer
asked by
Cat
3,128 views
a firecracker is fired from the ground. The height of the firecracker at a given time is modeled by the function h(t)
1 answer
asked by
Rutba
3,094 views
If a projectile is fired with velocity v0 at an angle θ, then its range, the horizontal distance it travels (in feet), is
2 answers
asked by
Ama
2,988 views
Liquid butane, C4H10, is stored in cylinders, to be used as a fuel. The normal boiling point of butane is listed as -0.5 C. (a)
2 answers
asked by
Harry
2,800 views
The blades of a ceiling fan have a radius of 0.348 m and are rotating about a fixed axis with an angular velocity of +1.63
1 answer
asked by
Sam
2,632 views
Suppose that when pizza dough is rolled out it costs 25 cents per square foot, and that sauce and cheese when spread out on a
2 answers
asked by
Chelsea
2,116 views
Kim Davis has decided to purchase a cellular phone, but she is unsure about which rate plan to select. The "regular" plan
1 answer
asked by
Lisa
1,965 views
The drawing shows two frictionless inclines that begin at ground level (h = 0 m) and slope upward at the same angle θ. One
1 answer
asked by
Tim
1,930 views
given the density of helium is 0.1785g/cm3 and the density of argon is 1.784g/cm.3 estimate the density of neon
1 answer
asked by
Jessa
1,834 views
A railroad car of mass 2.7 104 kg moving at 3.50 m/s collides and couples with two coupled railroad cars, each of the same mass
2 answers
asked by
heather
1,792 views
A nonuniform 2.0-kg rod is 2.0 m long. The rod is mounted to rotate freely about a horizontal axis perpendicular to the rod that
1 answer
asked by
Anonymous
1,701 views
An unknown mass of each of the following substances, initially at 23.0C, absorbs 1910 J of heat. The final temperature is
1 answer
asked by
Amy
1,511 views
Use a Double- or Half-Angle Formula to solve the equation in the interval [0, 2π). (Enter your answers as a comma-separated
2 answers
asked by
Ama
1,463 views
A game consists of tossing two coins, first a dime and then a nickel. For each coin which comes up a head you win the value of
2 answers
asked by
carmen, please help!!
1,450 views
If 25.0mL of 0.56 M H2SO4 is diluted to a volume of 125 mL, what is the molarity of the resulting solution?
3 answers
asked by
katie
1,440 views
how you could separate the components of a mixture of PbCL and NaSO and recover the two substances
2 answers
asked by
Tina
1,375 views
If f(x)=3x^2-5x, find the f'(2) & use it to find an equation of tangent line to the parabola
y=3x^2-5x at the point (2,2). My ans
1 answer
asked by
Ifi
1,331 views
A child in danger of drowning in a river is being carried downstream by a current that has a speed of 2.10 km/h. The child is
0 answers
asked by
anusha
1,310 views
A 8.52 -kg block of metal is suspended from a scale and immersed in water as in Figure P9.30. The dimensions of the block are
1 answer
asked by
Emily
1,302 views
Suppose that the spool is 1m long and has an inner diameter of 20 cm and an outer diameter of 60 cm. Approximately, how long a
0 answers
asked by
Chelsea
1,299 views
Why do humans use running shoes, winter boots, snowshoes, skis and flippers? Why are these not biological adaptations? Use
4 answers
asked by
Ruby
1,285 views
I know that to calculate the specific rotation for a compound you do
observed rotation / path length(dm) * conc. (g/ml). I am
6 answers
asked by
Hannah
1,272 views
A rubber ball is dropped from an unknown height. It bounces back to 60% of its original height. Write an equation you can use to
0 answers
asked by
Dene'
1,223 views
A 150mL sample of 0.45 M HNO3 is diluted to 450 mL. What is the molarity of the resulting solution?
1 answer
asked by
katie
1,141 views
A rectangular table top measures 7 / 9 of a meter long by 2 / 9 of a meter wide. What is the area
1 answer
asked by
Tamara
1,089 views
The probability that a person catches a cold during the cold and flu season is 0.62. Assume that 5 people are chosen at random.
A
1 answer
asked by
agak
1,088 views
an object on an inclined ramp of mass 1.39kg. The angle of the inclined surface is 29deg with the horizontal. The object on the
0 answers
asked by
Angie
1,071 views
What is Cold FusionMX and how would you accommodate on a Windows 2000 server?
0 answers
asked by
Ann
1,067 views
Assume that the average annual salary for a worker in the United States is $30,500 and that the annual salaries for Americans
1 answer
asked by
Michael
1,053 views
You are at the controls of a particle accelerator, sending a beam of 2.40×107 protons (mass ) at a gas target of an unknown
1 answer
asked by
HANNE
1,042 views
In the topic of centre of gravity why is it difficult to topple a doll in a circular base.
0 answers
asked by
Juanita
1,024 views
AluminiCorp is a major producer of aluminum cans that produces 40 billion aluminum cans every year. You work as a quality
1 answer
asked by
Anonymous
977 views
Analyze the following scenario: River County is planning several capital acquisitions for the coming year. These include the
1 answer
asked by
Anonymous
957 views
To what volume must 25.0mL of 18.0M H2SO4 be diluted to produce 1.50 M H2SO4?
1 answer
asked by
katie
951 views
Reduce this equation using the quadratic formula, factoring, or other algebraic method to determine the other zeros of the
1 answer
asked by
Ash
944 views
A horizontal wire that runs east-west carries a steady current to the east. A C-shaped magnet is placed so that the wire runs
2 answers
asked by
Ashley
930 views
need help with this problem :/
A circular coil (980 turns, radius = 0.078 m) is rotating in a uniform magnetic field. At t = 0 s,
0 answers
asked by
derek
922 views
An air mattress is 2.36 m long, 0.640 m wide, and 12.2 cm deep. If the air mattress itself has a mass of 0.252 kg, what is the
1 answer
asked by
EMM
908 views
Two persons are to run a race, but one can run 10 meters per second, whereas the other can run 6 meters per second. If the
1 answer
asked by
Anonymousjm
894 views
Write an equation that has (2,6) as a solution. Explain how you found the equation.
2 answers
asked by
Maryam :)
884 views
You are at the controls of a particle accelerator, sending a beam of 2.40×107 protons (mass ) at a gas target of an unknown
1 answer
asked by
HANNE
856 views
1. The slope of the tangent line to a function at a point is equivalent to __.
a. the slope of the secant at that point b. the
1 answer
asked by
hnc
843 views
Write a method main that demonstrates class Employee's capabilities by
creating two Employee objects. Initialize one of the
0 answers
asked by
sim
841 views
Why do human beings use running shoes, winter boots, snowshoes, skis and flippers? Why are these not biological adaptations? Use
17 answers
asked by
emily
832 views
Arrange the following compounds in order of increasing ease of elution from an activated alumina column:
a. Cyclohexane b. Butyl
1 answer
asked by
Susan
830 views
Two pumps can fill a water tank in 256 minutes when working together. Alone, the second pump takes times as long as the first to
1 answer
asked by
tiffany
829 views
the region bounded by the quarter circle (x^2) + (y^2) =1. Find the volume of the following solid.
The solid whose base is the
1 answer
asked by
mike
821 views
In “Do Not Go Gentle into That Good Night,” Dylan Thomas urged his father to resist (1 point)
aging. despair. quitting.
2 answers
asked by
Anastasia
819 views
You are on a train that is traveling at 3.0 m/s along a level straight track. Very near and parallel to the track is a wall that
0 answers
asked by
tim
787 views
The drawing shows two boxes resting on frictionless ramps. One box is relatively light and sits on a steep ramp. The other box
1 answer
asked by
greg
775 views
Gonorrhea is spread through contact with the ________.
A. Anus, , Mouth, Skin B. , Anus, Mouth, C. , Skin, , Anus D. Mouth, , ,
4 answers
asked by
Marissa
760 views
-15-√-18/33
1 answer
asked by
Jackie
760 views
Determine the stopping distance for a skier moving down a slope with friction with an initial speed of 20.6m/s. Assume μk=0.178
0 answers
asked by
Angie
760 views
Why do clouds form behind the moving cold front?
1 answer
asked by
dorothy morlan
758 views
Show that 480 W of power is expended by a weightlifter when lifting a 60-kg barbell a vertical distance of 1.2 m in a time
2 answers
asked by
Cecilia
754 views
The El Paso Middle School girls' basketball team is going from El Paso to San Antonio for the Texas state championship game. The
2 answers
asked by
Jason
753 views
a fair of die is tossed 180 times. Find the probability P that the face 6 will appear between 29 and 32 times inclusive?
0 answers
asked by
vilma
748 views
1. How much work or energy (in J) does a 150 W light bulb convert to heat and light in 1.0 h?
2.The force of gravity on a box of
2 answers
asked by
HanuP28O
739 views
A block slides down a frictionless plane having an inclination of 18.9deg. If the block starts from rest at the top and the
0 answers
asked by
joane
735 views
why will Na2CO3 + AgNO3 create a percipitate? I thought that one of the compounds has to be insoluble for it to form a
5 answers
asked by
rebekah
732 views
A railroad car (m=3000 kg) is coasting along a level track with an initial speed of 22 m/s. A load of coal is then dropped into
0 answers
asked by
David
731 views
Use the Factor Theorem to determine the rational zeros of this function. Then use other methods to determine any other zero of
1 answer
asked by
Nikki
730 views
The differential gear of a car axle allows the wheel on the left side of a car to rotate at a different angular speed than the
2 answers
asked by
Sam
718 views
1/3 . 7 help me plss is it gonna be 7/1 or 1/7
1 answer
asked by
help me
712 views
A company makes tennis and squash rackets. Each tennis racket requires two units of aluminum and one unit of nylon. Each squash
1 answer
asked by
garnel
703 views
The particles in the figure below (m1=1.6 kg and m2=3.5 kg) undergo an elastic collision in one dimension. Their velocities
0 answers
asked by
David
694 views
Okay so here is the question
Suppose you are an official in an Eastern European nation. Write a letter to a major manufacturer in
1 answer
asked by
Blake
689 views
the midpoint of the line segment from p1 to p2 is (-1,3). if p1=(-6,7) what is p2?
1 answer
asked by
ladybug
689 views
the drive-rite insurance company provides automobile insurance policies for drivers. design a FLOWCHART for the following:
0 answers
asked by
GLENN
676 views
An airplane traveling 1007 m above the ocean at 150 km/h is going to drop a box of supplies to shipwrecked victims below.
(a) How
1 answer
asked by
denise
672 views
A student finds that 22.06 mL of 0.7270 M lead nitrate is needed to precipitate all of the iodide ion in a 50.00-mL sample of an
1 answer
asked by
Anonymous
670 views
I have to make a thesis statement for my essay I have made one but it's not good enough. It has to be 25 words or less and be
5 answers
asked by
Katelynn
666 views
This is a homework question and I have no idea what I'm doing wrong.
A heavy sled is being pulled by two people as shown in the
0 answers
asked by
Jamey
663 views
A 8.52 -kg block of metal is suspended from a scale and immersed in water as in Figure P9.30. The dimensions of the block are
0 answers
asked by
EMM
653 views
A 4165.0kg truck is parked on a 15.8deg slope. What is the friction force on the truck?
2 answers
asked by
joane
644 views
IFE,F,G,H ARE RESPECTIVELY THE MID POINTS OF THE SIDE OF A PARALLELOGRAM ABCD SHOW THAT AREA OF EFGH IS EQUAL TO HALF AREA OF
0 answers
asked by
VIKASH KUMAR GUPTA
637 views
The combined area of New York and California is 204,192 square miles. The area of California is 108,530 square miles more than
1 answer
asked by
Anonymousjm
637 views
Two masses of 3.40kg and 4.55kg are connected by a light string that passes over a frictionless pulley. Determine the tension in
0 answers
asked by
Angie
623 views
bubbles initially forms and escapes down the bottom of the glass in the rising water experiment. What gas is responsible for
4 answers
asked by
Draden
614 views
A ray of light is incident at an angle of 20degrees to the normal on one face of an equilateral prismm made in glass of
1 answer
asked by
Please help- Elena
611 views
A quarterback throws the football to a stationary receiver who is 19.7 m down the field. The football is thrown at an initial
0 answers
asked by
JASPER
611 views
How many milliliters of 0.524 M HNO3 contain 3.13 g HNO3?
1 answer
asked by
bebo
609 views
How to differentiate f(x)=e^(xlnx)?
I get f'(x)=e^(xlnx) (1+lnx) while at wolfram is x^x(ln x+x)...sorry for my miscalculation /
1 answer
asked by
Ifi
591 views
What focal-length lens would you need to place next to a converging lens of focal length 29 cm to create an effective focal
0 answers
asked by
Jeanette
591 views
A wireless phone company charges a monthly fee of $39.99 plus $0.49 per minute for usage that exceeds the included minutes.
2 answers
asked by
Maryam :)
589 views
Wildlife biologists fire 20kg rubber bullets to stop a rhinoceros charging at 0.83m/s. The bullets strike the rhino and drop
0 answers
asked by
Jcota2
580 views
A bullet of mass m=0.060 kg hits a 5.0 kg block with an initial speed of 225 m/s. The block is connected to a spring that is
4 answers
asked by
Rob
574 views
As Bridget is walking through a parking lot, a bicyclist swerves toward her. Her heart races and sweat breaks out as she jumps
3 answers
asked by
justin
572 views
dx/dy cos x sin y + x^5 = 11
i got dx/dy= (-cos x cos y)/ (-sin x sin y +5x^4) But the wolfram got (1- cos x cos y)/(5x^4-sin y
3 answers
asked by
Ifi
566 views
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