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Questions Asked on November 8, 2010

Of the following transitions in the Bohr hydrogen atom, the ____ transition results in the emission of the highest-energy
1. 2 answers
2. asked by Jessica
3. 10,257 views
It is my final test and I want to do a good job!Below I will show you the questions and what I think the answer is, if any are
1. 10 answers
2. asked by Jessyca
3. 4,303 views
You push a 2.0 kg block against a horizontal spring, compressing the spring by 15 cm. Then you release the block, and the spring
1. 2 answers
2. asked by Meghan
3. 4,250 views
If a 60.0 kg person will need to climb a 10.0 m stairway how may times to work off each excess Cal (kcal) consumed?
1. 2 answers
2. asked by Johnnie
3. 4,237 views
Which two orbitals from CV+ and –OH will overlap creating the C-O bond in CVOH?Which of the following accurately shows the
1. 4 answers
2. asked by jake
3. 3,698 views
An aluminum rod is 21.5 cm long at 20°C and has a mass of 350 g. If 12500 J of energy is added to the rod by heat, what is the
1. 2 answers
2. asked by Erica--help!
3. 3,247 views
Two point masses are located a distance, D, apart. The gravitational force of attraction between them can be quadrupled by
1. 5 answers
2. asked by unknown
3. 3,117 views
Copper reacts with nitric acid according to the following reaction:3 Cu (s) + 8 HNO3 (aq) --> 3 Cu(NO3)2 (aq) + 2 NO (g) + 4 H2O
1. 1 answer
2. asked by Christy
3. 3,082 views
How did people modify to their environment in the Mohenjo-Daro?
1. 5 answers
2. asked by Janet
3. 2,785 views
Briefly describe the cookie production process.2. What are two ways that the company has increased productivity? Why did
1. 5 answers
2. asked by george
3. 2,613 views
Ok people my daughter myself and my husband have been unable to answer this question so your help would be appreciated. I asked
1. 2 answers
2. asked by wilson
3. 2,575 views
on the "aster flower." What time of year might be symbolized by the aster flower and the other images of plant life found in the
1. 2 answers
2. asked by LoLo
3. 2,529 views
A uniform ladder 5.0 m long and weighing 200 N is placed against a very smooth wall so that the lower end of the ladder is 3.0 m
1. 3 answers
2. asked by Jessica
3. 2,426 views
In 2.0 minutes, a ski lift raises 4 skiers at constant speed to a height of 170 m. The average mass of each skier is 65 kg. What
1. 1 answer
2. asked by michelle
3. 2,336 views
1. In standard column chromatography, it is better to change from a nonpolar solvent to more polar solvent. What are some
1. 1 answer
2. asked by Anonymous
3. 2,201 views
Container 1 has 8 items, 3 of which are defective. Container 2 has 5 items, 2 of which are defective. If one item is drawn
1. 2 answers
2. asked by Marla
3. 2,086 views
If 2.1 moles of CaCl2 are dissolved in enough water to make a 0.92-liter solution, what is the resulting molarity?0.44 M CaCl2
1. 3 answers
2. asked by smith
3. 2,074 views
A space habitat for a long space voyage consists of two cabins each connected by a cable to a central hub as shown in the figure
1. 1 answer
2. asked by Anonymous
3. 2,049 views
A sealed glass bottle containing air at atmospheric pressure (101kPa) and having a volume of 22 cm^3 is at 23 degrees Celsius.
1. 1 answer
2. asked by Norah
3. 2,006 views
Paul needs 2 1/4 yards of fabric to make a tablecloth. How many tablecloths can he make from 18 1/2 yards of fabric. Define the
1. 1 answer
2. asked by obama
3. 1,985 views
I calculated parts a, b, c, but cannot figure out d. I tried combining all the forces and adding them but I am missing
1. 1 answer
2. asked by Aileen
3. 1,931 views
Time (months) 0 1 2 3 4 5Rate pollutants are escaping 2 5 7 16 24 34 Use this data to sketch a graph Draw rectangles on this
1. 0 answers
2. asked by Erika
3. 1,909 views
A farmer uses 140 ft. of fencing to enclose a rectangular field. if the ratio of length to width is 3:4, find the diagonal of
1. 2 answers
2. asked by Rachel
3. 1,894 views
Four tubes are set up in the lab at sea level as shown by the figure. The letter under each tube corresponds the question with
1. 4 answers
2. asked by Sarah
3. 1,825 views
a 25.0mL sample of a 0.100M solution of aqueous trimethylamine is titrated with a 0.125M solution of HCl. Calculate the pH of
1. 1 answer
2. asked by Amanda
3. 1,778 views
A rectangular block of ice 10 m on each side and 1.1 m thick floats in sea water. The density of the sea water is 1025 kg/m3.
1. 1 answer
2. asked by Sarah
3. 1,755 views
If a room has a perimeter of 32feethow many square floor tiles with sides 1 foot long are needed to cover the floor of the room?
1. 2 answers
2. asked by Jill
3. 1,663 views
Help......A 1.0kg metal head of a geology hammer stikes a solid rock withy a velocity of 5.0m/s. Assuming all the energy is
1. 3 answers
2. asked by Staci
3. 1,661 views
A pendulum has a length of 1m. What is the period of this pendulum? What is the frequency of this pendulum?You measure the
1. 1 answer
2. asked by devin
3. 1,556 views
A 0.145 kg baseball pitched at 38.0 m/s is hit on a horizontal line drive straight back toward the pitcher at 55.0 m/s. If the
1. 2 answers
2. asked by brian
3. 1,493 views
Complete and balance:FeCl3 (aq) + KSCN(aq) ___________ + ____________? Cu (s) + HNO3(aq) Cu(NO3)2(aq) + H2O (l) + ____________?
1. 1 answer
2. asked by john
3. 1,428 views
Atwood's Machine An Atwood's machine consists of two masses, and , connected by a string that passes over a pulley.If the pulley
1. 0 answers
2. asked by lauren
3. 1,424 views
A rectangle is constructed with its base on the diameter of a semicircle with radius 5 cm and with two vertices on the
1. 3 answers
2. asked by Tiff
3. 1,410 views
If a 0.1 kg mass is suspended at rest from a spring near the Earth's surface, the distance that the spring is stretched is
1. 1 answer
2. asked by devin
3. 1,378 views
Give the formula of the conjugate base of each of the following acids:a.) citric acid b.)oxalic acid c.)dihydrogen phosphate ion
1. 1 answer
2. asked by jj re
3. 1,368 views
Find the most general antiderivative of the function. Use C for any needed constant.f(u) = (u^4 + 7 sqrt(u)) / u^2 F(u) =
1. 1 answer
2. asked by Zack
3. 1,358 views
A HIKER SHOUTS TOWARD A VERTICAL CLIFF 685 M AWAY. THE ECHO IS HEARD 4.00 SECONDS LATER.WHAT IS THE SPEED OF SOUND OF THE
1. 1 answer
2. asked by ROWDY ANDRESS
3. 1,355 views
A cue ball traveling at 4.0 m/s makes a glancing, elastic collision with a target ball of equal mass that is initially at rest.
1. 0 answers
2. asked by matt
3. 1,338 views
Compressing gases requires work and the resulting energy is usually converted to heat; if this heat does not escape, the gas's
1. 0 answers
2. asked by Ashleigh
3. 1,288 views
If you have a circle graph 15 students like basketball 10 like soccer and 5 like softball. Write a ratio problem that relates to
1. 1 answer
2. asked by Jill
3. 1,282 views
A constant 6.0N net force acts for 4.0 s on a 12 kg object. what is the objects change of velocity
1. 1 answer
2. asked by Anonymous
3. 1,278 views
A 25.0mL sample of a 0.100M solution of acetic acid is titrated with a 0.125M solution of NaOH. Calculate the pH of the
1. 2 answers
2. asked by Amanda
3. 1,277 views
Suppose that 50.0 cm3 of 2.00 M hydrochloric acid are added to 4.00 grams of zinc metal.What it the limiting reagent? How many
1. 1 answer
2. asked by Fania
3. 1,261 views
A sample of hexane and octane is injected into a gas chromatograph equipped with a nonpolar column. Predict which one will have
1. 3 answers
2. asked by Jeanne
3. 1,239 views
At 3 pm a plane left the airport for LA traveling at 600 mph. At 3:30, another plane left the same airport on the same route
1. 2 answers
2. asked by Sam
3. 1,232 views
Calcium carbonate reacts with hydrochloric acid according to the following reaction:CaCO3 (s) + 2 HCl (aq) --> CaCl2 (aq) + H2O
1. 1 answer
2. asked by Christina
3. 1,228 views
Suppose that two players are playing the following game. Player 1 can choose either top or bottom, and Player 2 can choose
1. 1 answer
2. asked by Stephanie
3. 1,224 views
Electronic medical records have been becoming increasingly common in the health care industry. As a result, the issues that
1. 2 answers
2. asked by Tamara
3. 1,210 views
the horizontal range of a projectile is 4 root 3 times of its maximum height. calculate the angle of projection.
1. 3 answers
2. asked by help
3. 1,209 views
The Internet has become a very popular research tool for patients to research different health care conditions and possible
1. 1 answer
2. asked by Tamara
3. 1,194 views
Calculate the pH of 1.00L of a buffer that is 0.120M HNO2 and 0.150M NaNO2 before and after the addition of 1.00mL of 12.0M HCl
1. 3 answers
2. asked by Amanda
3. 1,193 views
Express in terms of x, the value in cents of x lbs. of 40 cent cookies and (30-x) pounds of 50 cent cookies.
1. 2 answers
2. asked by Finn
3. 1,179 views
Use the theorem on bounds to establish the best integral bounds for the roots of the equation:w^(4)-8w^(3)+2w^(2)+10w-1=0
1. 0 answers
2. asked by samantha
3. 1,163 views
A computer company gives a discount of 10% off of the marked price on a newpiece of software. If it makes a profit of 11% on
1. 1 answer
2. asked by von
3. 1,133 views
is it possible to constuct a triangle with the lengths of 5ft,6ft, and 12 ft?
1. 2 answers
2. asked by Skylar
3. 1,129 views
Please correct my english!Hello everybody! I'm not an english speaker, but currently study english at school. Our homework is to
1. 2 answers
2. asked by Jack
3. 1,118 views
A model rocket builder has constructed a rocket of total mass of 1.0kg. The rocket must achieve a speed of 300m/s 5seconds after
1. 0 answers
2. asked by Cole
3. 1,112 views
How do you calculate the slope of a line?
1. 1 answer
2. asked by Caleb
3. 1,102 views
The boiling point elevationof an aqueous sucrose solution is found to be 0.39 degrees Celsius. What mass of sucrose (molar
1. 2 answers
2. asked by Sharon
3. 1,081 views
A sample of gas is at a pressure of 1 atm , a volume of 1 L , and a temperature of 25 degrees celsius. What would happen to the
1. 1 answer
2. asked by Anonymous
3. 1,078 views
a grid has line at 90-degree angles. There are 12 lines in one direction and 9 lines in the other direction. Lines that are
1. 1 answer
2. asked by Kelly
3. 1,076 views
A bag contains 3 red marbles, 2 green ones, 1 lavender one, 2 yellows, and 4 orange marbles. How many sets of four marbles
1. 1 answer
2. asked by liz
3. 1,075 views
an object is released from rest on a planet that has no atmosphere.the object falls freely for 3.46 m in the first second.what
1. 1 answer
2. asked by bill
3. 1,074 views
Fred hits a baseball 3 ft above ground at a velocity of 100 ft per sec and at an Angle of 45 degrees with respect to level
1. 0 answers
2. asked by Jackk
3. 1,070 views
more volume of NaOH means more moles of NaOH (volume * molarity = mole ; molarity=constant) , more moles of NaOH means more
1. 1 answer
2. asked by fred
3. 1,069 views
verify that the function satisfies the hypothesis of the mean value theorem on the given interval. then find all numbers c that
1. 1 answer
2. asked by Sasha
3. 1,056 views
Ashley can ride her bike to work in 2/3 of an hour. When she drives to work it takes 1/3 of an hour. If she drives 12 miles per
1. 0 answers
2. asked by Chris
3. 1,053 views
If the ratio of onions to cilantro is 4:3 and I'm using 2/3 cup of onions, how much cilantro will I need?
1. 2 answers
2. asked by KC
3. 1,043 views
With a known population mean of 100, and a known standard error of the mean of 7.5, what is the probability of selecting at
1. 1 answer
2. asked by Bee
3. 1,038 views
The drawing shows a collision between two pucks on an air-hockey table. Puck A has a mass of 0.030 kg and is moving along the x
1. 1 answer
2. asked by joseph
3. 1,030 views
16. Soy ordenado, pero ____ soy desordenado.a. tampoco b. jueves c. a veces d. de veras C? 17. a mí no me gusta _____. a. pero
1. 2 answers
2. asked by mysterychicken
3. 1,026 views
1. She didn't go to a dentist.2. She didn't go to see a dentist. 3. She didn't go to the dentist. 4. She didn't go to the
1. 1 answer
2. asked by rfvv
3. 1,019 views
HOW DO SOLVE A BOAT TRAVELED 336 MILES DOWNSTREAM AND BACK. THE TRIP DOWNSTREAM TOOK 12 HOURS. THE TRIP BACK TOOK 14 HOURS. WHAT
1. 0 answers
2. asked by JAMES'
3. 1,012 views
what are three major parts of a summary?
1. 5 answers
2. asked by ali
3. 1,006 views
Posted by rfvv on Monday, November 8, 2010 at 7:14am.1. He is an early bird. 2. He is a morning person. 3. He is a late bird. 4.
1. 1 answer
2. asked by rfvv
3. 1,002 views
A man pushes on a piano of mass 180 so that it slides at a constant velocity of 12.0 down a ramp that is inclined at 11.0 above
1. 0 answers
2. asked by bob
3. 992 views
A Pyrex flask in a refrigerator at -8 degrees Celsius is filled to the top and holds exactly 1000cm^3 of ethyl alcohol.If the
1. 0 answers
2. asked by Farah
3. 982 views
how HIPAA, GLB, and COPPA laws can help ensure people's privacy. What is their ethical justification? Is there gray area in
1. 1 answer
2. asked by Anonymous
3. 981 views
A 25 kg chair initially at rest on a horizontal floor requires 360 N horizontal force to set it in motion. Once the chair is in
1. 0 answers
2. asked by Devon
3. 980 views
Did Hoover fail to bring the country out of the Depression because he had too much gov intervention or was it too little?
1. 1 answer
2. asked by Anonymous
3. 975 views
draw a rectangle in the following grid that has a perimeter of 14 units and an area of 12 square units
1. 3 answers
2. asked by alla
3. 975 views
A propeller blade has a period of rotation of 0.400s. What is the speed of the outer tip of the propeller blade if the tip is
1. 0 answers
2. asked by jane
3. 971 views
train A leaves a station at 1:15 PM,traveling 60 mph.Train B leaves the same station, in the same direction as train A,15
1. 2 answers
2. asked by mary
3. 969 views
a circular dartboard of radius 1 foot is at a distance of 20 feet from you. you throw a dart at it and it hits the dartboard at
1. 1 answer
2. asked by reenu
3. 968 views
A 56.0 ice skater spins about a vertical axis through her body with her arms horizontally outstretched, making 2.00 turns each
1. 1 answer
2. asked by steph
3. 965 views
which number is least, which number is greatest 30%, 3/4, .34
1. 1 answer
2. asked by christian
3. 935 views
Paul needs 2 1/4 yards of fabric to make a tablecloth. How many tablecloths can he make from 18 1/2 yards of fabric
1. 1 answer
2. asked by Aly
3. 929 views
A 1.0kg metal head of a geology hammer strikes a solid rock with a velocity of 5.0m/s. Assuming all the energy is retained by
1. 2 answers
2. asked by Anonymous
3. 926 views
how do you think western europes ular geography had affected its history and settlements
1. 1 answer
2. asked by Anonymous
3. 924 views
40% of the 25 students in the class are boys. Write 40% as a fraction? Then find the ratio of girls to boys in the class.10 of
1. 1 answer
2. asked by Jill
3. 921 views
Ashley is currently consuming 10 hot dogs and 8 hamburgers a week. The last hot dog she consumed yielded 20utils while the last
1. 1 answer
2. asked by Leon
3. 919 views
a pieces of metal of mass 3.6kg is suspended from a spring balance, what is the reading of spring balance in newton, with a
1. 0 answers
2. asked by fola
3. 910 views
Water is a polar solvent. Which of the following will not dissolve in water?sugar table salt vinegar olive oil
1. 2 answers
2. asked by smith
3. 906 views
what is the percentage of hydrogen in calcium acetate?
1. 1 answer
2. asked by edgar
3. 906 views
Which of the following equals (-4)A(-4) . (1-4) <- That's a fraction B(-4) . (1) C(-4) . (4)
1. 0 answers
2. asked by Mara
3. 906 views
in physics terms what does vacuum mean?? i thought they meant a vacuum sweeper?? huh? The question is " The same object is
1. 1 answer
2. asked by bobbi
3. 899 views
Assume the graph below represents the market demand for a patented prescription drug together with the firm-level marginal cost
1. 0 answers
2. asked by tweetie
3. 896 views
A 61 kg soccer player jumps vertically upwards and heads the 0.45 kg ball as it is descending vertically with a speed of 29 m/s.
1. 2 answers
2. asked by Anonymous
3. 893 views
Salicyclic acid reacts with methanol to produce methylsalicyclate or winter green and water according to the following reaction:
1. 1 answer
2. asked by Christina
3. 890 views
Can anyone give me an acrostic poem on lithosphere?
1. 3 answers
2. asked by Victor
3. 889 views

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