Ask a New Question
Search
Archives
2011
November
Questions Asked on
November 18, 2011
Write a net ionic equation for the overall reaction that occurs when aqueous solutions of hydrosulfuric acid and potassium
5 answers
asked by
savannah
9,615 views
an open box is to be made from a piece of metal 16 by 30 inches by cutting out squares of equal size from the corners and
1 answer
asked by
lulu
7,893 views
In a volleyball a player on one team spikes the ball over the net when the ball is 10 ft above court. The spike drives the ball
4 answers
asked by
Lynn
7,618 views
Rank the following atoms in terms of decreasing atomic radius.
1. Na, N, O, Mg, F 2. F, O, N, Mg, Na 3. F, Mg, Na, O, N 4. Na,
3 answers
asked by
Bob
6,412 views
use oxidation states to identify the element that is being oxidized and the element that is being reduced in the redox reaction
S
1 answer
asked by
Monique
4,940 views
A candy sample is completely combusted in a bomb calorimeter. The calorimeter contains 982 g of water, and the measured
1 answer
asked by
Chemistry Chick
4,476 views
Find a, b, c, and d such that the cubic function ax^3 + bx^2 + cx + d satisfies the given conditions
Relative maximum: (2,4)
2 answers
asked by
Savannah
3,866 views
calculate the mass of solid NaCl that must be added to 1.5L of 0.100M AgNO3 solution to precipitate all the Ag+ ions in the form
3 answers
asked by
NONO
3,729 views
In the industrial synthesis of ammonia, the equilibrium constant expression may be written as: Keq= [NH3]^2/[N2][H2]^3
Calculate
2 answers
asked by
Chemistry Chick
3,625 views
The mole fraction of nitrogen in air is 0.7808. calculate the partial pressure of N2 in air when the atmospheric pressure is 760
4 answers
asked by
NONO
3,484 views
a fence 8 ft tall stands on level ground and runs parallel to a tall building. if the fence is 1 ft from the building, find the
3 answers
asked by
robert
2,927 views
A ball rolls on a circular track of radius 0.65 m with a constant angular speed of 1.2 rad/s in the counterclockwise direction.
P
2 answers
asked by
Cooper
2,898 views
An oil can is to be made in the form of a right circular cylinder to have a volume of 16 pie inches cubed. Find the dimensions
1 answer
asked by
Betty
2,812 views
if 10mL of acetone is diluted with water to a total of 200mL, what is the percent by volume in the propane solution?
1 answer
asked by
Anonymous
2,483 views
A solution is prepared by dissolving 0.5842g of oxalic acid (H2C2O4) in enough water to make 100.0ml of solution. A 10.00ml
2 answers
asked by
NONO
2,469 views
1. A state’s department of education reports that 12% of the high school students in that state attend private schools. The
1 answer
asked by
fast eddie
2,246 views
A buffer solution contains HC2H3O2 at a concentration of 0.225 M NaC2H3O at a concentration of 0.164 M. The value of Ka for
1 answer
asked by
Chemistry Chick
2,223 views
Consider the following reaction
4Al + 3O2 = 2Al2O3 It takes 2.00 L pure oxygen gas at STP (0C ,1atm ) to react completely with a
3 answers
asked by
NONO
2,079 views
you need exactly A 1680 ft3 aquarium for you fish. at the pet store you see four chices of aquariums, but the volume is not
5 answers
asked by
iris
1,993 views
A hammer slides down a roof that makes a 40.0 degree angle with the horizontal. What are the magnitudes of the components of the
1 answer
asked by
Wilson
1,937 views
I wanted to check my True and False Chemistry HW. I am not 100% they are correct.
1.the number of neutrons in an atom is reffered
1 answer
asked by
Allura
1,932 views
A 10 g bullet moving at 370 m/s strikes a ballistic pendulum of mass 2kg. The bullet emerges with a speed of 100 m/s.
What height
1 answer
asked by
mary
1,841 views
Write a net ionic equation for the reaction that occurs when aqueous solutions of sodium hydroxide and perchloric acid are
3 answers
asked by
savannah
1,706 views
A 26.0 kg block is connected to an empty 1.00 kg bucket by a cord running over a frictionless pulley. The coefficient of static
1 answer
asked by
Millie
1,667 views
Simplify. Identify any x-values for which the expression is undefined.
1. (4x-8)/(x^2-2x) 2. (8x-4)/(2x^2+9x-5)
1 answer
asked by
Lily
1,648 views
Imagine that you have a 5.00L gas tank and a 3.50L gas tank. You need to fill one tank with oxygen and the other with acetylene
1 answer
asked by
unknown
1,635 views
A man stands on a platform that is rotating (without friction) with an angular speed of 1.21 rev/s; his arms are outstretched
1 answer
asked by
Aimee
1,597 views
The position of a mass oscillating on a spring is given by x=(4.7 cm)cos [2pi t/(0.52 s)].
What is the period of this motion?
1 answer
asked by
Cooper
1,572 views
find the opposite or additive inverse of -38
1 answer
asked by
Willis
1,555 views
Which of the following statements concerning the Twenty-fifth Amendment is incorrect?
a. It allows the vice president to serve as
1 answer
asked by
Brooke
1,442 views
A calorimeter contains 32.0 of water at 11.5. When 1.70 of (a substance with a molar mass of 74.0 ) is added, it dissolves via
1 answer
asked by
Priscilla
1,367 views
a bicyclist is finishing his repair of a flat tire when a friend rides by at 3.5 m/s. two seconds later, the bicyclist hops on
0 answers
asked by
taylor
1,314 views
define a supply chain driver and show it's relation to supply chain focus with a couple of examples
3 answers
asked by
Edwin
1,312 views
How many different 3 digit numbers less than 500 can be made using the digits 3, 4, 5, and 6 if the digits can be used only once
2 answers
asked by
Anonymous
1,296 views
I urgently need you to check these sentences. Thank you.
1) As our students we'll probably have to learn science in English in
1 answer
asked by
Henry2
1,245 views
a model rocket rises with constant accerleration to a height of 3.2 m, at which point its speed is 26.0 m/s. (a) how much time
1 answer
asked by
taylor
1,217 views
are this 2 equations the same NIE? and if not how come?
Write a net ionic equation for the reaction that occurs when aqueous
4 answers
asked by
savannah
1,214 views
Nisa has grown up in a small village in the foothills. There was no electricity and water had to be hand pumped. They seldom saw
3 answers
asked by
Anonymous
1,168 views
Your heart beats with a frequency of 1.35 Hz. How many beats occur in a minute?
If the frequency of your heartbeat increases,
0 answers
asked by
Cooper
1,160 views
A solid brass ball of mass 9.5 g will roll smoothly along a loop-the-loop track when released from rest along the straight
0 answers
asked by
Bridgette
1,140 views
1. The problem statement, all variables and given/known data
I am using a Vishay strain indicator with it hooked up to a strain
0 answers
asked by
Z32
1,126 views
Tom the cat is chasing Jerry the mouse across
a table surface 1.9 m off the floor. Jerry steps out of the way at the last second,
2 answers
asked by
Emma
1,126 views
when a chameleon captures an insect its tingue car extend 16 cm in 0.10 s. (a) Find the magnitude of the tongue's acceleration,
1 answer
asked by
taylor
1,112 views
when a chameleon captures an insect its tingue car extend 16 cm in 0.10 s. (a) Find the magnitude of the tongue's acceleration,
1 answer
asked by
taylor
1,087 views
what are the main assumptions underlying organizational communication?
0 answers
asked by
Edwin
1,086 views
I have a big packet of homework can somebdy help me?1,000 qstn. :(
1 answer
asked by
Yessica
1,080 views
find the solution of
(x2-y2)dx + 3xydy =0 Please help me to find the right answer,I sovled many ways but I don't get the right
0 answers
asked by
lyn
1,069 views
You have a 2.4 m high platform that is level on top. A spring launcher is located on the top so that it launches objects
0 answers
asked by
Dan
1,065 views
I urgently need you to revise these sentences.
1) Do you intend to start the project before Christmas? 2) I need to know which
1 answer
asked by
Henry2
1,062 views
The present ages in years of four cousins are consecutive multiples of 3. Five years ago the sum of their ages was 46. What is
1 answer
asked by
Zephine
1,060 views
. An article accessed through a library data base by May Gottchalk titled Reconsidering Dyslexia. The article was
published in
2 answers
asked by
HM
1,037 views
Brenda and her family were driving to her grandmother’s house during a holiday. During the drive, Brenda fell asleep halfway
2 answers
asked by
MATH Help Please
1,006 views
A Ferris wheel with radius 11.0 m rotates at a constant rate, completing one revolution every 33.9 s. Suppose the Ferris wheel
0 answers
asked by
Jacob
999 views
A bunch of grapes is placed in a spring scale at a supermarket. The grapes oscillate up and down with a period of 0.41 s, and
0 answers
asked by
Cooper
990 views
A class consist of half as many boys as girls, if there are 14 boys how many girls are there
4 answers
asked by
janet
943 views
What is the principle of powers? Describe in your own words. When solving a radical equation, how do we use the principle of
1 answer
asked by
Allison
941 views
When a 0.213-kg mass is attached to a vertical spring, it causes the spring to stretch a distance d. If the mass is now
0 answers
asked by
Cooper
932 views
Iron and oxide react to form iron(lll) oxide: 4Fe(s) + 3O2(g)+ 2FeO2(s) Determine the limiting reactant in each of the following
1 answer
asked by
claire
922 views
A vibrating structural beam in a spacecraft can cause problems if the frequency of vibration is fairly high. Even if the
0 answers
asked by
Cooper
913 views
shawna reduced the size of a rectangle to a height of 2 in. what is the new width if it was originally 24 in wide and 12 in tall
3 answers
asked by
kimberly
906 views
To identify a diatomic gas (x2), a researcher carried out the following experiment: She weighed an empty 3.4L- bulb, then filled
1 answer
asked by
unknown
906 views
referring to the previous problem, if you had entered the same sandy patch with a lower speed, say 7.0 m/s, would the patch have
0 answers
asked by
taylor
869 views
A block is released on an inclined plane from a height of 1m. There is friction (static and kinetic =.4) and the mass of the
1 answer
asked by
Rachael
864 views
Let W be the set of all continuous functions from the set of real numbers R to R. For f,g in W define f+g by (f+g)(x)=f(x)+g(x)
1 answer
asked by
Mary
863 views
a farmer has a 2040 ft of fencing and wishes to fence off two separate fields. one of the fields is to be a rectangle with the
0 answers
asked by
robert
844 views
Facts about the sun are?
I have 1. the only star in our solar system 2. sun spots are cooler areas on sun's surface 3. from solar
1 answer
asked by
Johnny
843 views
A 1200-kg car reaches a speed of 11 m/s from rest in 10 seconds. Determine the cars power.
1 answer
asked by
Mish
842 views
A rotating uniform cylindrical platform of mass 240 kg and radius 5.7 m slows down from 3.9 rev/s to rest in 16 s when the
1 answer
asked by
Ari
840 views
a trapezoid is a quadrilateral with (only) two sides (called bases) that are parallel. an isosceles trapezoid has two equal
2 answers
asked by
robert
838 views
Consider 4.00L of a gas at 365mmHg and 20*C. If the container is compressed to 2.80L and the temperature is increased to 35*C,
1 answer
asked by
unknown
833 views
What is my grades for the first quarter? I didn't get my report card because my parents didn't go to the parents teacher
7 answers
asked by
Laruen
828 views
44 more thatn Q algebraic expression
1 answer
asked by
Johnson
828 views
i to write a wellcome letter,wellcoming the new colonies to the United State and ease the fears
1 answer
asked by
david
828 views
2. Suppose that firms in an industry have the following cost function: C = 100 + 0.25q2, and the industry faces an inverse
1 answer
asked by
jay
817 views
Write each sentence, using the subject
pronoun that best replaces the underlined word or words. The neighborhood grocer sells a
2 answers
asked by
stephanie
792 views
Two people with a combined mass of 135 kg hop into an old car with worn-out shock absorbers. This causes the springs to compress
0 answers
asked by
Cooper
791 views
if the initial concentration of the reactant in the first order reaction A→products is 0.64 mol/L and the half-life is 30 s,
1 answer
asked by
saud
791 views
a bicyclist is finishing his repair of a flat tire when a friend rides by at 3.5 m/s. two seconds later, the bicyclist hops on
0 answers
asked by
taylor
782 views
Find the angle that the vector R = A + B
makes with the positive x axis, use counter- clockwise as the positive angular
0 answers
asked by
Shana
773 views
Explain how you can estimate to tell whether 433-147=286 is reasonable.
1 answer
asked by
sandra
771 views
Rewrite the passage below correcting any errors of grammar and usage
The mechanic drove out the car to Joe that was lubricated.
1 answer
asked by
richard
769 views
What website is when you can ask any questions and other people can answer it something besides YA like free lik jiskha but for
2 answers
asked by
Laruen
761 views
A person is riding a bicycle, the wheels of a bicycle have an angular velocity of +24.0 rad/s. Then, the brakes are applied. In
0 answers
asked by
Taylor
761 views
While fishing, you get bored and start to swing a sinker weight around in a circle below you on a 0.24 m piece of fishing line.
0 answers
asked by
Danielle
760 views
If a force of 20N stretches a spring 15 cm, by what amount will the spring stretch is if a force of 80 N is applied?
1 answer
asked by
Don
759 views
An oil whose density is 0.775g/mL was used in a open-end manometer to measure the pressure of a gas in a flask, as shown in
1 answer
asked by
Chris
757 views
Tom the cat is chasing Jerry the mouse across
a table surface 1.8 m off the floor. Jerry steps out of the way at the last
1 answer
asked by
Anonymous
748 views
Jenny has a part time job and her net take-home income is $2000 per month. She needs to allocate her funds to reflect a balanced
1 answer
asked by
Lashan
747 views
THANK YOU!
Brenda and her family were driving to her grandmother’s house during a holiday. During the drive, Brenda fell asleep
0 answers
asked by
To; Millie
739 views
A 26.0 kg block is connected to an empty 1.00 kg bucket by a cord running over a frictionless pulley (Fig. 4-57). The
0 answers
asked by
Millie
730 views
The crowd that heard the President speak was estimated to be 10,000 peoples. The actual crowd could be 750 people more or less
1 answer
asked by
Katie D.
710 views
Question Part
Points Submissions Used A bus slows down uniformly from 75.0 km/h (21 m/s) to 0.0 km/h in 220 m. How long does it
0 answers
asked by
Anonymous
704 views
A 0.55-kg air cart is attached to a spring and allowed to oscillate.
If the displacement of the air cart from equilibrium is
0 answers
asked by
Cooper
700 views
a given mass of hydrogen occupies 40.0L at 700 torr. what volume will it occupy at 930 torr
1 answer
asked by
aaa
699 views
grace has 16 in her pocket. she has 8 red ibesm 4 green ones, and 4 blue ones. what is the minimum number of jellybeans she must
3 answers
asked by
iris
694 views
A 5.00 m long rigid beam with a mass of 200.0 kg is supported at each end. A 55.0 kg student stands on the beam, 1.40 m from the
1 answer
asked by
Anonymous
690 views
The word "slippery" almost feels slippery! This may have to do with the blending of "s" and "I" so that the word glides or slips
6 answers
asked by
Miss Sweet
685 views
The hero pursues the villain up to the top of a bungee jumping apparatus. The villain appears trapped but to create a diversion
1 answer
asked by
Jack
684 views
I just want to be sure if my answers make any sense!
A kid throws a ball in the air and catches it 5 seconds later a) What is the
4 answers
asked by
Tommy
684 views
A mass attached to a spring oscillates with a period of 3.15 s. If the mass starts from rest at x= 4.10×10−2 m and time t= 0,
0 answers
asked by
Cooper
684 views
Back to November 2011