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Questions Asked on November 23, 2014

1. during the exchange of air in your lungs, oxygen is being taken into your bloodstream while this substance is being releasedm
1. 54 answers
2. asked by health/ pe CHECK ANSWERS
3. 36,058 views
Which of the following electromagnetic waves is not used for communication?
1. 55 answers
2. asked by Claire
3. 21,508 views
a concrete slab of mass 400 kg accelerates down a concrete slope inclined at 35 degrees. the coefficient of kinetic friction
1. 10 answers
2. asked by ezana
3. 9,121 views
true or false the main process for digestion takes place in the stomachtrue false*** regular excersise stimulates_____which
1. 22 answers
2. asked by health/ pe CHECK ANSWERS
3. 5,001 views
At a state fair truck pull, two pickup trucks are attached to the back end of a monster truck as illustrated in the figure. One
1. 3 answers
2. asked by Gerald
3. 4,624 views
Calculate Ecell for reaction for the given info below..O2(g)+2H2O(l)+4Ag(s)--> 4OH-(aq)+4Ag+(aq Ag+(aq)+ 1e ---> Ag(s) Ered=
1. 1 answer
2. asked by Hank
3. 4,585 views
The distance from home plate to dead center field in a certain baseball stadium is 409 feet. A baseball diamond is square with a
1. 2 answers
2. asked by Alexis
3. 4,437 views
An introductory psychology class has 9 freshman males, 15 freshman females, 8 sophomore males, and 12 sophomore females. If one
1. 1 answer
2. asked by Anonymous
3. 3,213 views
The rusting of iron is represented by the equation 4Fe+3O2=2Fe2O. A 1.45-mol sample of iron, how many moles of Fe2O3 will there
1. 1 answer
2. asked by keisha
3. 2,594 views
3/4 of seats in a concert hall were occupied. The ratio of adults to children was 7:3. If 90 more adults attended the concert,
1. 3 answers
2. asked by R
3. 2,545 views
2Al (s) + 3Cl2 (g)  2 AlCl3 (s)i)obtain the limiting reagent. when 2.00 mole of Cl2 (g) is reacted with 54.3 g of Al (p).
1. 1 answer
2. asked by ren
3. 2,474 views
The National Institute of Science and Technology (NIST) kinetics database lists the rate constant, k, of a particular gaseous
1. 2 answers
2. asked by anon
3. 2,473 views
A ball thrown vertically upwards from ground level hits the ground after 4 seconds.Calculate the maximum height it reached
1. 7 answers
2. asked by utsman
3. 2,368 views
A projectile of mass 0.99 kg is shot from acannon. The end of the cannon’s barrel is at height 6.6 m, as shown in the figure.
1. 1 answer
2. asked by Alexis
3. 2,363 views
A jar contains 133 pennies. A bigger jar contains 1 2/7 times as many pennies. What is the value of the pennies in the bigger
1. 5 answers
2. asked by charles
3. 2,243 views
the ratio of the weight of an object on jupiter to its weight on earth is 8 to 3.how much would a 100 pound person weigh on
1. 5 answers
2. asked by ariana
3. 2,213 views
A car accelerates from rest to 90km/h in 10 seconds.What is its acceleration in m/s2?
1. 5 answers
2. asked by Fofo
3. 2,193 views
What is the mole fraction of O2 in a mixture of 15.1g of O2, 8.16g of N2, and 2.46g of H2?(PLEASE EXPLAIN WHAT YOU DO!) Thanks
1. 1 answer
2. asked by G-Dogg
3. 2,178 views
Two sides of a rectangular fence are 5 5/8 feet long The other two sides are 6 1/4 feet long. what is the perimeter
1. 10 answers
2. asked by jack
3. 2,156 views
Farmer Max, sells grain to Germany, owns 60 acres of wheat fields. Based on the past experience, he knows that the yield from
1. 2 answers
2. asked by loh
3. 2,103 views
1. during the exchange of air in your lungs, oxygen is being taken into your bloodstream while this substance is being releasedm
1. 3 answers
2. asked by health/ pe CHECK ANSWERS
3. 1,958 views
What mass of rhodium contains as manyatoms as there are zirconium atoms in 23 g of zirconium?
1. 2 answers
2. asked by carlee
3. 1,910 views
A certain car has an acceleration of 2.4m/s2.Assume that its acceleration remains constant. Starting from rest,how long does the
1. 10 answers
2. asked by Fofo
3. 1,760 views
If there are 560 calories in 8 ounces of meat, how many calories are in 3 ounces of meat?
1. 8 answers
2. asked by ariana
3. 1,729 views
Calculate the volume of concentrated reagent required to prepare the diluted solution17 M H3PO4 to prepare 939 mL of 6.7 M H3PO4
1. 3 answers
2. asked by X
3. 1,727 views
The can of mushroom soup must have spoiled it was bulging at the top.
1. 2 answers
2. asked by Mig
3. 1,707 views
Consider a very small hole in the bottom of a tank that is 17.0 cm in diameter and filled with water to a height of 90.0 cm.
1. 0 answers
2. asked by Anonymous
3. 1,670 views
A car travels 350 miles on 20 gallons of gallons of gasoline.How many gallons will be used to travel 875 miles under the same
1. 3 answers
2. asked by ariana
3. 1,604 views
When a container of water is placed on a laboratory scale, the scale reads 120 g. Now a 20-g piece of copper (of density 8.9
1. 1 answer
2. asked by Anonymous
3. 1,585 views
Rochester says, "God pardon me!" and "Man, meddlee not with me" after Jane agrees to marry him because...Need to finish the
1. 2 answers
2. asked by Emily
3. 1,585 views
Solve the problem using matrices.John has a jarful of quarters and nickels. There are 84 coins in the jar. The value of the
1. 3 answers
2. asked by Heaven
3. 1,583 views
When France gave up control of Vietnam in 1954, which group gained control of North Vietnam and which group took charge of South
1. 7 answers
2. asked by Amnada
3. 1,568 views
A lathe, initially at rest, accelerates at .60 rad/s^2 for 10s, then runs at a constant angular velocity for 20s, and finally
1. 1 answer
2. asked by Joe
3. 1,552 views
A sled on ice moves in the ways described inthe questions below. Friction is so small that it can be ignored. A person wearing
1. 1 answer
2. asked by Anonymous
3. 1,500 views
Three students have ordered a 14 inch diameter pizza. They slice it with 2 parallel cuts, giving them 3 pieces with equal area.
1. 1 answer
2. asked by Danielle
3. 1,475 views
You have a blind date with a physics major. From your social networking experience, you know that 10% of physics majors are
1. 1 answer
2. asked by Anonymous
3. 1,420 views
Flying with the wind, a plane traveled 390 miles in 3 hours. Flying against the wind, the plane traveled the same distance in 5
1. 1 answer
2. asked by Jer
3. 1,417 views
21.4 A student survey. Tonya wants to estimate what proportion of the students in her dormitory like the dorm food. She
1. 2 answers
2. asked by Anonymous
3. 1,237 views
In an effort to loosen the bolt on the wheel of a car, a man with a mass of 70kg steps on the end of a 50cm tire iron which is
1. 1 answer
2. asked by Nick
3. 1,189 views
Evaluate the expression.Determine the number of combinations of 7 things taken 4 at a time. & Mark can remember only the first 4
1. 1 answer
2. asked by Jamie
3. 1,159 views
A skier of mass 70.4 kg, starting from rest, slides down a slope at an angle $\theta$ of 36.8° with the horizontal. The
1. 1 answer
2. asked by hicham
3. 1,147 views
What is the exact strain energy per unit length of an edge dislocation for a material that has a Young's modulus E of 50GPa, a
1. 2 answers
2. asked by qwerty
3. 1,118 views
A roll of toilet paper (a partially hollow cylinder with R_2 = 7.5cm, M = 300g, and I = 9.0 x 10^-4 kg m^2) is mounted on a
1. 1 answer
2. asked by Bevi
3. 1,115 views
In how many different ways can two pennies, three nickels, four dimes, and five quarters be arranged in a row?
1. 2 answers
2. asked by deen
3. 1,097 views
Which is the inspiration for the Farnese ceiling?A. Michelangelo’s Sistine Ceiling B. Bernini’s Cornaro Chapel C. Gaulli’s
1. 3 answers
2. asked by Pat
3. 1,076 views
A student was given a 2.45 g of impure potassium sulfate (K2SO4) sample. He dissolved this sample in 100 mL of water first and
1. 2 answers
2. asked by Anonymous
3. 1,073 views
Last week, a sporting goods store had a big sale. During the sale, shoppers bought 1/15 of the store's basketballs.After the
1. 5 answers
2. asked by Quinten
3. 1,055 views
the last 10% of CRYPTOGRAM II DON'T GET THIS????
1. 17 answers
2. asked by ariana
3. 1,052 views
Draw the three alkenes, each of formula C5H10, that will form 2-methylbutane upon hydrogenation.
1. 0 answers
2. asked by Kira
3. 1,020 views
Round to the nearest hundredths 23.456
1. 1 answer
2. asked by Kendra
3. 1,016 views
A person pushes on a doorknob with a force of 5N. The direction of the force is at an angle of 20 degrees from the perpendicular
1. 0 answers
2. asked by Max
3. 1,010 views
If it takes 4 ounces of insecticide to make 2/1/2 gallons of garden spray, how much spray can be made with 6 ounces of
1. 1 answer
2. asked by ariana
3. 1,000 views
A two dimensional object placed in the xy plane has three forces acting on it: a force of 3N along the x axis acting at a point
1. 0 answers
2. asked by Alex
3. 987 views
Iodine forms three compounds with chlorine. Choose the correct molecular shapes.ICl3 ICl5 ICl
1. 2 answers
2. asked by Jake
3. 984 views
The 4th term of an ap is 15 while the 7th term is 27, find the sum of the 9th and 10th term.
1. 1 answer
2. asked by thelma
3. 971 views
An aircraft landing on an aircrafts carrier is brought to a complete stop from an initial of 215km/h in 2.7 seconds. What is its
1. 3 answers
2. asked by Fofo
3. 947 views
Draw all of the possible alkyne isomers of CH≡CCH2CH2CH2CH3.
1. 0 answers
2. asked by Anonymous
3. 941 views
Poly(methyl methacrylate) (PMMA), more commonly known as acrylic glass.Draw the monomer, given that this polymer forms by
1. 0 answers
2. asked by Kira
3. 870 views
A motorboat traveling a distance of 225 miles in 5 hours while traveling with the current. Against the current, the same trip
1. 1 answer
2. asked by Jer
3. 866 views
Find the magnitude and direction angle for each vector. Give the measure of the direction angle as an angle in [0,360].<5sqrt2,-
1. 1 answer
2. asked by Freddie
3. 847 views
which of the following is a characteristic of karst topography?a. caverns b. glaciers c. alluvial fans d. dunes
1. 5 answers
2. asked by Eden S.
3. 831 views
changes in the carbon cycle cause global temperatures to rise how might this affect the water cycle
1. 1 answer
2. asked by Cindy
3. 825 views
Which of the following chemical reactions is an example of an endothermic reaction?A. Making ice cubes from liquid water B.
1. 1 answer
2. asked by Morgan
3. 814 views
I have an assignment. It has two boxes to model the particles of the same gas at different temperature (18 and 45 degrees
1. 3 answers
2. asked by Morgan
3. 796 views
An excess of Al and 7.9 mole of Br2 are reacted according to the equation 2Al+ 3Br2 equals 2AlBr3. How many moles of AlBr3 will
1. 1 answer
2. asked by Mook
3. 790 views
50ml of 20.8% bacl2 and 100ml of 9.8% h2s04 solutions are mixed. Molarity of cl ions in the resulting solution wt of ba =137I do
1. 0 answers
2. asked by Ken
3. 789 views
A piece of aluminum has a volume of 1.55 x 10-3 m3. The coefficient of volume expansion for aluminum is = 69 x 10-6(C°)-1. The
1. 0 answers
2. asked by Jason
3. 788 views
Please prepare 0.5L of 1.2M HCl in 50% (v/v) aqueous methanol.The details of HCl are as follows: Hydrochloric acid: Purity :
1. 0 answers
2. asked by elvy
3. 785 views
Solve by using a system of equations.The number x of MP3 players a manufacturer is willing to sell is given by x = 20p − 1500,
1. 1 answer
2. asked by Jer
3. 773 views
A material has a Young's modulus E of 50GPa, a Burger's vector b of 0.25nm, and a Poisson's ratio ν of 0.3.What is the
1. 0 answers
2. asked by qwerty
3. 764 views
Calculate the pH of a 1.19M sodium formate, HCOONa, solution.
1. 1 answer
2. asked by Bill
3. 764 views
The ration of oil to vinegar in a certain salad dressing is 8:5. how much oil must be blended with 7 liters of vinegar for that
1. 3 answers
2. asked by ariana
3. 754 views
What is the vector product of A=2i + 3j + 1k and B=1i - 3j - 2k?
1. 0 answers
2. asked by Johnny
3. 754 views
An 800kg police boat slows down uniformly from 50km/h (E) to 20km/h(E) as it enters a harbour. If the boat slows down over a 30m
1. 1 answer
2. asked by Anonymous
3. 747 views
The Graduate Record Exam has a combined verbal and quantitative mean of 1000 and a standard deviation of 200. Scores range from
1. 1 answer
2. asked by Charlene
3. 742 views
Air at 1 atm is inside a cylinder 17.9 cm in radius and 17.9 cm in length that sits on a table. The top of the cylinder is
1. 0 answers
2. asked by Anonymous
3. 729 views
A boy wants to throw a ball into his friend’s window 16.0 m above. Assuming it just reaches the window, he throws the ball at
1. 1 answer
2. asked by Joe
3. 720 views
A man is holding an 8.00kg vacuum cleaner at arm's length, a distance of .550m from his shoulder. What is the torque on the
1. 1 answer
2. asked by Leo
3. 707 views
A skier of mass 70.4 kg, starting from rest, slides down a slope at an angle $\theta$ of 36.8° with the horizontal. The
1. 1 answer
2. asked by hicham
3. 704 views
Calculate the pH of a buffer solution made by mixing 231 mL of a 1.04M trimethylamine (CH3)3N solution with 176 mL of a 1.38M
1. 1 answer
2. asked by Bill
3. 702 views
In a running event, a sprinter does 4.1 ✕ 105 J of work and her internal energy decreases by 8.1 ✕ 105 J.
1. 1 answer
2. asked by Kylie
3. 694 views
A baloon is 200 m off the ground and rising vertically at the rate of 15 m/sec an automobile passes beneath it travelling along
1. 2 answers
2. asked by Basharat
3. 690 views
What is the purpose of a calorimeter?A. To determine the temperature of a chemical reaction B. To determine the energy changes
1. 2 answers
2. asked by Morgan
3. 686 views
A proton moves with a velocityV (2i - 4 j + k) m / s in a region where the field is given by B = (i + 2 j -3k) T . What is the
1. 0 answers
2. asked by daniel
3. 673 views
I need for someone to check my questions letters that I match up to the answers that I choseHere are the questions 1. Concrete
1. 3 answers
2. asked by Sharon
3. 662 views
Aqua dude can swim at a speed of 2.0m/s in still water. A river is 48 m wide and has a current of 1.5 m/s [E]. He starts at the
1. 1 answer
2. asked by Franklin
3. 659 views
An excess of Al and 7.9 Mole of Br2 are reacted according to the question 2Al+3 Br2 equals 2AlBr3
1. 0 answers
2. asked by Mook
3. 659 views
Find the x-values of all points where the function below has any relative extrema. Find the values(s)of any relative extrema.G(x
1. 0 answers
2. asked by Duane
3. 657 views
Describe whether the following study would most likely be “observational” or “experimental”, and why it would be so.A
1. 1 answer
2. asked by Jenn
3. 652 views
WHEN MR. LOWE RETURN FROM HIS FISHING TRIP, HIS STUDENTS INQUIRED AS TO THE LENGTH OF HIS PRIZE CATCH.MR. LOWE ANSWERED. "THE
1. 2 answers
2. asked by Maya Is The Best Freaking Person Ever!
3. 651 views
Where can I find information on the difference between English policing and American policing, without using wikipedeia? I found
1. 4 answers
2. asked by Demi
3. 646 views
Moving fast proton of 4x106 m / s through a 1.7 T magnetic field experiences a force8x10-13N magnetic. What is the angle between
1. 0 answers
2. asked by daniel
3. 638 views
A force of 35lb is required to hold a 72lb toolbox on an incline. What angle does the incline make with the horizontal?Please
1. 5 answers
2. asked by Alexis
3. 634 views
In how many wYs can a chairperson and a vice chairperson be selected from a committee of 15 senators?
1. 1 answer
2. asked by Maxine
3. 621 views
A skier of mass 70.4 kg, starting from rest, slides down a slope at an angle $\theta$ of 36.8° with the horizontal. The
1. 0 answers
2. asked by hicham
3. 619 views
Drops of water leak from a tap 2m above the basin at regular intervals.As the first drop strikes the basin the fourth drop
1. 0 answers
2. asked by sneha
3. 619 views
suppose a car rental charges 94 dollars for the first day and 44 dollars for each additional or partial day.let S(x) represent
1. 2 answers
2. asked by Ed
3. 616 views
If pencils sell at 6 for 59 cents,how many pencils can be bought for $2.95?
1. 7 answers
2. asked by ariana
3. 614 views
How many grams of nitric acid (HNO3) must be dissolved in 590 ml of water to make a solution with a pOH = 10.1?Select one: a.
1. 1 answer
2. asked by Bill
3. 613 views
Hi, I need help with these problems, I'm not sure where to start. The book's examples are different. Thanks in advance!!1.) To
1. 2 answers
2. asked by Emma
3. 610 views

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