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Questions Asked on February 13, 2012

Write the balanced chemical equation for each of these reactions. Include phases. When aqueous sodium hydroxide is added to a
1. 15 answers
2. asked by Katie
3. 13,254 views
When a 58g tennis ball is served, it accelerates from rest to a speed of 45m/s. The impact with the racket gives the ball a
1. 5 answers
2. asked by Natasha
3. 12,656 views
At 25 °C only 0.0580 mol of the generic salt AB3 is soluble in 1.00 L of water. What is the Ksp of the salt at 25 °C?
1. 2 answers
2. asked by Katie
3. 10,893 views
At an instant when a soccer ball is in contact with the foot of a player kicking it, the horizontal or x component of the ball's
1. 3 answers
2. asked by Natasha
3. 10,064 views
A rectangular parcel of land has an area of 4,000 ft2. A diagonal between opposite corners is measured to be 10 ft longer than
1. 2 answers
2. asked by Anonymous
3. 5,961 views
Which statement does NOT characterize Martin Luther King Jr.'s "I Have a Dream" speech?1.)It openly criticized the Governor of
1. 20 answers
2. asked by Mackenzie
3. 4,448 views
A 20kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 80N and is
1. 2 answers
2. asked by Natasha
3. 4,299 views
Assume that you have 7 dimes and 5 quarters (all distinct), and you select 4 coins. In how many ways can the selection be made
1. 1 answer
2. asked by Kayla
3. 4,050 views
At a circus, a human cannonball is shot from a cannon at 15m/s at an angle of 40 degrees from horizontal. She leaves the cannon
1. 1 answer
2. asked by Ed
3. 4,040 views
A coffee-cup calorimeter initially contains 125 g water at 24.2 degrees celsius. Potassium bromide (10.5 g), also at 24.2 degree
1. 4 answers
2. asked by Elle
3. 4,022 views
I don't get two questions out of my homework and I know the answers to them but just not how the answers were gotten. PLEASE
1. 4 answers
2. asked by Taylor
3. 3,941 views
6. A bowl contains 10 red balls, 10 green balls and 10 white balls. a. What is the probability of drawing 2 white balls with
1. 4 answers
2. asked by sharon
3. 3,858 views
A light-rail train going from one station to the next on a straight section of track accelerates from rest at 1.1 {\rm m/s}^2
1. 3 answers
2. asked by Susan
3. 3,304 views
If a tree is 10 feet tall after two years and 25 feet tall after 5 years, find the rate of change of growth of the tree if y is
1. 3 answers
2. asked by Don
3. 3,206 views
2. Rod A, which is 30 cm long, expands by 0.045 cm when heated from 0°C to 100°C. Rod B, also 30 cm long expands by 0.075 cm
1. 1 answer
2. asked by Anonymous
3. 3,183 views
Two charged particles of equal magnitude(+Q and +Q) are ﬁxed at opposite corners of a square that lies in a plane (see ﬁgure
1. 1 answer
2. asked by jc
3. 3,039 views
Find the slope of the graph of the function at the given point. Use the derivative feature of a graphing utility to confirm your
1. 2 answers
2. asked by Anonymous
3. 2,720 views
Q=3x^2+4y^2 if x+y=7 what is minimum value for Q.I have absolutely no idea how to solve this problem.
1. 2 answers
2. asked by summer
3. 2,317 views
Jane and John, with masses of 50 kg and 60 kg, respectively, stand on a frictionless surfact 10 m apart. John pulls on a rope
1. 2 answers
2. asked by Katelyn
3. 2,277 views
Assume that the committee consists of 8 Republicans and 6 Democrats. A subcommittee consisting of 7 people is to be selected.
1. 1 answer
2. asked by Kayla
3. 2,124 views
For the reaction between nitrogen and oxygen to form nitric oxide, beginning with 0.067 mol of N2,N2(g) + O2(g)= 2 NO(g) a. how
1. 3 answers
2. asked by krystal
3. 2,060 views
in a survey 120 pupils were asked which learning site they would like to visit as part of the learning journey. 24 said A, 36
1. 1 answer
2. asked by Anonymous
3. 1,889 views
Assume that the camper has 3 jackets, 3 sleeping bags, and 11 different packages of food. An outfit consists of 1 jacket, 2
1. 2 answers
2. asked by Victoria
3. 1,856 views
How can you turn 1/6 into a decimal and a percent???????
1. 2 answers
2. asked by Madelyn Santiago
3. 1,840 views
A penny falls from a windowsill 25.0 m above the sidewalk. How fast is the penny moving when it strikes the ground? (Remember
1. 2 answers
2. asked by Anonymous
3. 1,765 views
A proton has an initial speed of 3.9×105 m/s.What potential difference is required to bring the proton to rest? What potential
1. 1 answer
2. asked by kas
3. 1,751 views
0.281g of Fe(NH4)2(SO4)2*6H2O is dissolved in a total volume of 500.0 mL of water, calculate the resulting Fe concentration in
1. 1 answer
2. asked by ella
3. 1,687 views
Which of these traits can a tree NOT pass to its offspring?A.the shape of its leaves B.roots that grow toward water C.a trunk
1. 4 answers
2. asked by Colton
3. 1,633 views
At a certain temperature, the solubility of strontium arsenate, Sr3(AsO4)2, is 0.0510 g/L. What is the Ksp of this salt at this
1. 1 answer
2. asked by Katie
3. 1,624 views
Copper(I) ions in aqueous solution react with NH3(aq) according toCu+(aq) + 2NH3(aq) -->Cu(NH3)2^+ Kf = 6.3x10^10 Calculate the
1. 1 answer
2. asked by Katie
3. 1,619 views
Use the rules of differentiation to find the derivative of the function.y = π/2 cos(θ) − sin(θ)
1. 1 answer
2. asked by Anonymous
3. 1,538 views
How many different rectangular prisms can be made using 36 cubes if the height is 2 cubes?
1. 2 answers
2. asked by Taylor
3. 1,530 views
A 50.6 mg sample of sodium perchlorate contains radioactive chlorine-36 (whose atomic mass is 36.0 amu). If 29.6% of the
1. 1 answer
2. asked by Steven
3. 1,522 views
this be the last oneJudgement : Do you like it, and is it successful? how well you think you have done with materials used? is
1. 8 answers
2. asked by Mohammad
3. 1,472 views
name three possible agendas and one example of each that you might find in the media.
1. 1 answer
2. asked by adaneike
3. 1,468 views
Cobalt-60, which undergoes beta decay, has a half-life of 5.26 yr. How many beta particles are emitted in 190s by a 3.10mg
1. 2 answers
2. asked by Steven
3. 1,433 views
calculate the freezing point of a .05500 m aqueous solution of NaNO3
1. 2 answers
2. asked by Cece
3. 1,414 views
Find the slope of the tangent line to the graph of the function at the given point.g(x) = 17 − x^2; (3, 8)
1. 2 answers
2. asked by Anonymous
3. 1,412 views
What is the area of the region bounded by the graphs y=e^x, y=1, x=-1?
1. 1 answer
2. asked by Heather
3. 1,401 views
Find the slope of the tangent line to the graph of the function at the given point.g(x) = 7/2x + 9, (-2, 2)
1. 4 answers
2. asked by Anonymous
3. 1,388 views
Silver chromate is sparingly soluble in aqueous solutions. The Ksp of Ag2CrO4 is 1.12× 10–12. What is the solubility (in
1. 2 answers
2. asked by Katie
3. 1,335 views
An 60 kg skier is sliding down a ski slope at a constant velocity. The slope makes an angle of 13° above the horizontal
1. 2 answers
2. asked by Anonymous
3. 1,323 views
1. Which of the following is/are common characteristic(s) of child abusers?a. frustration with life b. has experienced violence
1. 0 answers
2. asked by Ashley
3. 1,322 views
Ruzita bought 3kg of chicken.she used 0.75kg of the chicken to cook curry and another 0.13kg to stew w/ vegetables.what
1. 1 answer
2. asked by kimi
3. 1,305 views
Use an inverse matrix to solve each system of linear equations.A) x+2y=-1 B)x+2y=10 C)x+2y=-3 x-2y=3 x-2y=-6 x-2y=0
1. 0 answers
2. asked by mando
3. 1,298 views
A parallel-plate capacitor has plates with an area of 450 cm^2 and an air-filled gap between the plates that is 2.30 mm thick.
1. 1 answer
2. asked by kas
3. 1,285 views
What does the proverb say about braviety.braviet is?
1. 3 answers
2. asked by Zinhle
3. 1,238 views
Karen took 1h 45m to drive from town a to town b.she took another 25m to drive town b to town c.after that,she drove back to
1. 1 answer
2. asked by Da S
3. 1,226 views
A proton has an initial speed of 3.9×105 m/s.What potential difference is required to bring the proton to rest? What potential
1. 0 answers
2. asked by DAVE
3. 1,216 views
Assuming that it takes 0.10 s for the driver to react before applying the brakes, what is the stopping distance (the distance
1. 3 answers
2. asked by Laura
3. 1,215 views
. A professor is interested in knowing the correlation, if any, of students’ scores on the first and second exams given in his
1. 1 answer
2. asked by John
3. 1,193 views
A football kicker lines up to kick a game winning kick. The goalpost is 30m away and the ball must clear the 3.3m high
1. 1 answer
2. asked by Ed
3. 1,164 views
A sprinter of mass 63.7 kg runs at a constant speed of 10.2 m/s in a straight line. Find the extra force the sprinter must exert
1. 0 answers
2. asked by Mike
3. 1,150 views
compute for the pOH of a solution prepared by dissolving 5.50g KOH in enough to make a 100.0mL solution
1. 1 answer
2. asked by valerie faylogna
3. 1,143 views
a.) A 125 kg stone has an acceleration of 84.9 m/s2. Determine the net force acting on the stone.b.) A 45 N force is acting on a
1. 2 answers
2. asked by lauren
3. 1,128 views
Find the derivative of the function.f(x) = sqrt{x} -[3]sqrt{x}
1. 0 answers
2. asked by Anonymous
3. 1,123 views
How would I find the molality of NaCl with the following information?initial temperature= 98degrees celsius final temp=100
1. 0 answers
2. asked by Hannah
3. 1,111 views
Four point charges are placed at the four corners of a square. Each side of the square has a length L. Find the magnitude of the
1. 0 answers
2. asked by jc
3. 1,108 views
Find the derivative of the function.f(x) = 7x^3 + 7x^2/x f '(x) =
1. 4 answers
2. asked by Anonymous
3. 1,096 views
I have a few doubts on certain phrasal verbs. I hope you can clear them (up)?1) Can you give me an example of "lay on to"? I
1. 1 answer
2. asked by Henry2
3. 1,082 views
A ball is thrown downwards at a velocity of 14m/s from a bridge. One second earlier a rock is dropped from the same bridge.a)Whe
1. 0 answers
2. asked by Coco
3. 1,079 views
An arrow is shot at ground level with an initial speed of 50.0 m/s at an angle of 25.0° above horizontal. What is its
1. 0 answers
2. asked by Jem
3. 1,070 views
At 25 °C only 0.0990 mol of the generic salt AB is soluble in 1.00 L of water. What is the Ksp of the salt at 25 °C?
1. 4 answers
2. asked by Katie
3. 1,060 views
how many grams of hydrogen are produced if you have 120 grams of sodium?2Na+2H2O->2NaOH+H2
1. 1 answer
2. asked by tanya
3. 1,052 views
You have $47 to spend on music and movie downloads. Each album download cost $7 and each movie download costs $8. Write and
1. 1 answer
2. asked by Mary
3. 1,052 views
On the sentence: They dive deep beneath the surface in search of an exciting find. Would the adjectives in the sentence be deep
1. 1 answer
2. asked by Brandi
3. 1,049 views
The vapor pressure of chloroform is 173.11 mm Hg at 25 degrees celsius. A nonvolatile, nonelectrolyte that dissolves in
1. 1 answer
2. asked by Hannah
3. 1,049 views
2. At the point of fission, a nucleus of235U that has 92 protons is divided into two smaller spheres, each of which has 46
1. 1 answer
2. asked by jc
3. 1,046 views
On the sentence: One group of divers found the treasure of a Spanish galleon. Would the adjectives in the sentence be One and
1. 1 answer
2. asked by Brandi
3. 1,038 views
An appliance manufacturer wants to contract with a repair shop to handle authorized repairs. The company has an acceptable range
1. 1 answer
2. asked by Ashley
3. 1,037 views
1. What European city is near the intersection of 60 degrees N latitude and 30 degrees E longitude? Saint Petersburg, Russia2.
1. 1 answer
2. asked by Reed
3. 1,025 views
For the combustion of ethane, beginning with 2.6 mol of CH3CH3,2CH3CH3(g) + 7O2(g) → 4CO2(g) + 6H2O(g) a. how many moles of O2
1. 1 answer
2. asked by krystal
3. 1,018 views
1) The molecular mass of a substance was determined by the freezing point depression technique. The minimum data required for
1. 3 answers
2. asked by Hannah
3. 1,004 views
Nico is saving money for his college education. He invests some money at 5%, and $2300 less than that amount at 3%. The
1. 0 answers
2. asked by Sarah
3. 994 views
Now, let’s look at a situation in which we compare three college math teachers to each other with respect to how interested
1. 2 answers
2. asked by John
3. 985 views
i cant really find the exact thing on google.please a little help please,im begging youthanks help me find a exact link for laws
1. 4 answers
2. asked by hellokitty
3. 983 views
can somebody who has done LLB advice me on studyn for da first year exam in may..i fear cz i was not really in touch n i doubt
1. 1 answer
2. asked by ruwangi
3. 982 views
I am finding whether men or women are smarter. I am doing a chi-squared test to see if theres a correlation. What other
1. 2 answers
2. asked by Justin
3. 975 views
5. Jennifer, who has a mass of 50.0 kg, is riding at 35.0 m/s in her red sports car when she must suddenly slam on the brakes to
1. 0 answers
2. asked by Anonymous
3. 974 views
a solution containing 100g of unknown liquid and 900g water has a freezing point pf -3.33 C. given kf=1.86 degrees c for water,
1. 1 answer
2. asked by Court
3. 974 views
The initial amount is 1 million.Divide it by 4. Divide the result by 5. Divide the result by 2. Divide the result by 20.
1. 1 answer
2. asked by Kris
3. 961 views
The number of state federal inmates in millions during year x, where x is greater than or equal to 2002 can be approximated by
1. 4 answers
2. asked by Anonymous
3. 952 views
A crate of potatoes of mass 9.0 kg is on a ramp with angle of incline 30° to the horizontal. The coefficients of friction are
1. 1 answer
2. asked by Anonymous
3. 952 views
A 2.3 kg ball tied to a string fixed to the ceiling is pulled to one side by a force Farrowbold to an angle of θ = 26.4°.Just
1. 0 answers
2. asked by Anonymous
3. 940 views
what are three different situations in which the diffusion of gases is desired or not desired. what could you do to increase the
1. 0 answers
2. asked by skye
3. 934 views
A 9.5-kg watermelon and a 7.2-kg pumpkin are attached to each other via a cord that wraps over a pulley, as shown. Friction is
1. 0 answers
2. asked by Anonymous
3. 929 views
ESSAY PAKISTAN
1. 1 answer
2. asked by FAIZA
3. 926 views
Sean is playing a game where you toss a coin and roll a number cube. How many possible outcomes?Show it as a fraction,decimal,
1. 2 answers
2. asked by Madelyn Santiago
3. 922 views
can someone help me simplify 2a^2b^3(4a^2+3ab^2-ab)=? the first part of the answer is 8a^4
1. 4 answers
2. asked by katelynn
3. 919 views
**I don't want the answer, I want to know how to set the problem up and the formula that I need to use. I am online with a tutor
1. 1 answer
2. asked by Shannon
3. 916 views
Anne Frank: The Diary of a Young GirlBriefly explain Anne’s relationship with her parents. How is her relationship with her
1. 5 answers
2. asked by David
3. 906 views
Estimate the rise in temperature of the brake discs in a car of mass 1200g,travelling at 30m/s which is brought to rest by the
1. 2 answers
2. asked by BRIGHT
3. 900 views
e4) a rope applies a horizontal force of 190 N to pull a crate a distance of 2 m across the floor. A frictional force of 50N
1. 0 answers
2. asked by Anonymous
3. 888 views
Consider the following reaction.2KClO3(s) → 2KCl(s) + 3O2(g) a. How many grams of KCl are produced from the complete reaction
1. 1 answer
2. asked by krystal
3. 888 views
Find x such that the matrix is equal to its own inverse.3,x -2,-3
1. 0 answers
2. asked by mando
3. 885 views
I had to perform an experiment using a coffee-cup calorimeter to determine the enthalpies of two separate reactions. For part 1
1. 10 answers
2. asked by Hannah
3. 876 views
A solution was made by dissolving 62.07 grams of a compound in 500g of water. The compound was not ionic. The freezing point of
1. 3 answers
2. asked by Hannah
3. 870 views
Find an equation of the line that is tangent to the graph of f and parallel to the given line.Function f(x) = 2x^2 Line 6x – y
1. 1 answer
2. asked by Anonymous
3. 868 views
why is sociology not taught in the high school level?
1. 1 answer
2. asked by Tariq
3. 867 views
In an analog cellular structure, what is needed to establish a valid authentication?
1. 0 answers
2. asked by Joe
3. 861 views

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