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Questions Asked on July 16, 2013

the vapor pressure of water at 45.0 °c is 71.93 mmhg. Calculate the vapor pressure of a solution of 1.50 m Al(NO3)3 at this
1. 4 answers
2. asked by michael
3. 6,942 views
The Ksp of mercury II hydroxide is 3.60 x 10^-26. Calculte the solubility of this compound in g/L
1. 8 answers
2. asked by Anonymous
3. 6,710 views
A wind turbine is initially spinning at a constant angular speed. As the wind's strength gradually increases, the turbine
1. 1 answer
2. asked by kyle
3. 6,297 views
Complete this table of initial and final concentrationsHF(aq) + KOH(aq) <-> KF(aq) + H20(l) Initial concentrations: HF-2.0M
1. 3 answers
2. asked by Cat
3. 3,178 views
When a solution of nickel (II) chloride is mixed with a stoichiometric amount of colorless sodium hydroxide solution, a green,
1. 2 answers
2. asked by <3
3. 2,897 views
Tangshan Mining is considering issuing long-term debt. The debt would have a 30 year maturity and a 12 percent coupon rate and
1. 5 answers
2. asked by Michelle
3. 2,581 views
Fill in the spaces with the correct form of the verb in present continues tense.Hey! Do you want to hear about what my family
1. 4 answers
2. asked by leena
3. 2,106 views
The Smiths want to buy a 9 ft. by 12 ft. carpet and center it in a 15 ft. by 20 ft. room.What is the perimeter of the
1. 1 answer
2. asked by DG
3. 2,056 views
An automatic dryer spins wet clothes at an angular speed of 4.4 rad/s. Starting from rest, the dryer reaches its operating speed
1. 1 answer
2. asked by fred
3. 2,036 views
A man holds a 194-N ball in his hand, with the forearm horizontal (see the figure). He can support the ball in this position
1. 2 answers
2. asked by macy
3. 1,987 views
A person is riding a bicycle, and its wheels have an angular velocity of 28.9 rad/s. Then, the brakes are applied and the bike
1. 2 answers
2. asked by phincter
3. 1,906 views
A pitcher throws a curveball that reaches the catcher in 0.67 s. The ball curves because it is spinning at an average angular
1. 1 answer
2. asked by gregory
3. 1,723 views
Michael and Barry can complete a job in 2 hours when working together. If Michael requires 6 hours to do the job alone, how many
1. 1 answer
2. asked by vinci
3. 1,668 views
a 30 foot flagstaff is fixed in the center of a circular tower 40 feet in diameter. from a point in the same horizontal plane as
1. 1 answer
2. asked by rhen songalia
3. 1,644 views
The drawing shows the top view of two doors. The doors are uniform and identical. Door A rotates about an axis through its left
1. 1 answer
2. asked by john
3. 1,614 views
Denotative definitions are also known as ______ definitions.A. connotative B. direct C. indirect D. None of the Above C
1. 3 answers
2. asked by TammieChristina
3. 1,562 views
A star rotates in a circular orbit about the center of its galaxy. The radius of the orbit is 4.4 x 1020 m, and the angular
1. 1 answer
2. asked by simon
3. 1,555 views
A proton is traveling horizontally at 5.4 × 106 m/s in a direction 45o north of west. A magnetic flux density has a magnitude
1. 1 answer
2. asked by tom
3. 1,395 views
A 0.44-kg block is hung from and stretches a spring that is attached to the ceiling. A second block is attached to the first
1. 1 answer
2. asked by velet
3. 1,275 views
Two people start at the same place and walk around a circular lake in opposite directions. One has an angular speed of 2.46 x
1. 1 answer
2. asked by cindy
3. 1,269 views
A farmer has 1000 meters barbed wire with which he is to fence off three sides of a rectangular field, the fourth side being
1. 3 answers
2. asked by AwA
3. 1,246 views
A hydraulic jack has an input piston with a diameter of 1.00 cm, and an output piston with a diameter of 6.00 cm. What weight
1. 1 answer
2. asked by hank
3. 1,243 views
1-have you ever searched for information on the internet?Describe the process you used.2-Is information from the internet as
1. 2 answers
2. asked by maria
3. 1,232 views
The drawing shows a uniform horizontal beam attached to a vertical wall by a frictionless hinge and supported from below at an
1. 0 answers
2. asked by aj
3. 1,229 views
A spring lies on a horizontal table, and the left end of the spring is attached to a wall. The other end is connected to a box.
1. 0 answers
2. asked by sammy
3. 1,190 views
A house and a lot together cost more than $86,000. The house costs $2000 more than six times the costs of the lot. How much does
1. 1 answer
2. asked by vinci
3. 1,114 views
One pipe can fill a pool in 20 minutes, a second can fill the pool in 30 minutes, and a third can fill it in 10 minutes. How
1. 2 answers
2. asked by vinci
3. 1,078 views
The area of a rectangle is 15 + 5y square feet. Which of the following expressions could be the lengths of the sides of the
1. 4 answers
2. asked by walter
3. 1,063 views
What mass of KCl in grams is formed when 2.00 lbs of KC103 is decomposed?KClO3 --> KCl + O2
1. 2 answers
2. asked by ren
3. 1,061 views
1. He can not solve the math problem.2. He cannot solve the math problem. 3. He can't solve the math problem. 4. He could not
1. 4 answers
2. asked by rfvv
3. 1,019 views
Explain the difference between cos^-1x and (cos x)^-1
1. 1 answer
2. asked by ROBIN
3. 1,011 views
How many grams of NaOH would be needed to react with 199 g of HCl?NaOH + HCl --> NaCl + H2O
1. 2 answers
2. asked by ren
3. 1,007 views
At the local swimming hole, a favorite trick is to run horizontally off a cliff that is 5.95 m above the water. One diver runs
1. 1 answer
2. asked by elowise
3. 1,004 views
How many kilos of ammonia (N1H2)are contained in 600L of a solution that is8% NC13 by volume
1. 0 answers
2. asked by Carrisse
3. 993 views
A plane is 11.9 miles off the ground as it makes its descent to land at the Metropolitan airport (46 miles away). The pilot aims
1. 1 answer
2. asked by Anonymous
3. 990 views
Mary can clean the house in 6 hours. Her younger sister Ruth can do the same job in 9 hours. In how many hours can they do the
1. 1 answer
2. asked by vincent
3. 971 views
could u explain the rhyming scheme aa bb cc
1. 1 answer
2. asked by r s telagathoty
3. 958 views
A charged particle is projected into a uniform B-field. Its velocity vector is perpendicular to the B-field vector. What type of
1. 1 answer
2. asked by tom
3. 956 views
Force of attraction between two spheres is 3.75 x 10?-5 dyne when the spheres are placed 18 cm apart. What is force of
1. 1 answer
2. asked by Lynda
3. 933 views
a manufacturer markets 2 products. each unit of Product A requires 3 hours in the moulding department, 4 hours in the Paint
1. 1 answer
2. asked by kevin
3. 894 views
One end of a meter stick is pinned to a table, so the stick can rotate freely in a plane parallel to the tabletop. Two forces,
1. 0 answers
2. asked by cj
3. 876 views
What mass would you hang on the right side of the system in the figure to balance it -- that is, to make the clockwise and
1. 0 answers
2. asked by trineishia
3. 869 views
When 30.0g of aluminum reacts with HCl, how many grams of aluminum chloride are formed?Al + HCl --> AlCl3 + H2
1. 1 answer
2. asked by paula
3. 855 views
A helicopter has two blades (see figure), each of which has a mass of 270 kg and can be approximated as a thin rod of length 6.7
1. 1 answer
2. asked by samon
3. 847 views
A piece of metal, when weighed in air, has a weight of 20.7 N. When completely submerged in blood (ƒâ = 1060 kg/m3), the metal
1. 1 answer
2. asked by ODU
3. 813 views
A fan blade is rotating with a constant angular acceleration of +8.4 rad/s2. At what point on the blade, as measured from the
1. 1 answer
2. asked by frank
3. 807 views
Calculate the mass in grams of carbon needed to produce 160 g of CO2 in burning: C + O2 --> CO2
1. 1 answer
2. asked by paula
3. 803 views
Calculate the volume of gasoline, in liters, that you would add to your car's tank given that the density of gasoline is 0.66
1. 2 answers
2. asked by kia
3. 799 views
1/16x+1/4=1/2
1. 1 answer
2. asked by Simran
3. 757 views
according to ohm's law the current I is equal to the voltage V divided by the resistence R
1. 1 answer
2. asked by Anonymous
3. 747 views
The following data were collected from a case-control study of breast cancer and fat intake:case control High-fat diet 10 5
1. 1 answer
2. asked by thane
3. 738 views
Brilli the ant has a block of cheese that is in the shape of an equilateral triangle. She is hosting a party, and has invited
1. 1 answer
2. asked by Mark
3. 737 views
Define a variable and write an inequality for each of the following.A. When 3 times a number is decreased by 8, the result is at
1. 2 answers
2. asked by rita
3. 734 views
A bank teller has 35 bills in $5, $10, and $20 denominations. The total value from these bills is $370.The total number of $10
1. 1 answer
2. asked by Anonymous
3. 732 views
A hypothetical HIV vaccine trial involving 20,000 participants—10,000 in the vaccine group and 10,000 in the placebo
1. 1 answer
2. asked by Anonymous
3. 729 views
Assume that you are the assistant to the CFO of XYZ Company. Your task is to estimate XYZ's WACC using the following data:1.The
1. 0 answers
2. asked by Ely
3. 720 views
what is the source of error occur in experiment Standing Waves (tuning fork)?
1. 0 answers
2. asked by kate
3. 701 views
A 48.0 kg child is stationary in the middle of an ice rink (no friction). A 0.750 kg football is thrown with a velocity of 21.2
1. 1 answer
2. asked by ODU
3. 699 views
1. Last year, we had a school festival. I couldn't attend the school festival because of my illness.2. Last year, we had a field
1. 1 answer
2. asked by rfvv
3. 683 views
A Ferris wheel rotates at an angular velocity of 0.28 rad/s. Starting from rest, it reaches its operating speed with an average
1. 1 answer
2. asked by gregory
3. 674 views
The effect size in this hypothetical trial (2.7 fewer infections per 1000 vaccinated) is slightly smaller than the effect size
1. 0 answers
2. asked by Rupal
3. 664 views
Of the following models of education which one is more in use than all of the other models combined?A. Cognitive B. Development-
1. 1 answer
2. asked by Brenna
3. 660 views
Are my answers here correct ?Research questions for z test, t test for independent samples and t test for dependent samples : z
1. 0 answers
2. asked by Ira
3. 647 views
I'm doing some post lab questions and I'm stuck on one. In lab we performed Tollens test, Fehlings test, and Jones Oxidation to
1. 0 answers
2. asked by hayley
3. 646 views
After selling 160 copies of the program to a school play, an usher had fewer than 40 copies left. how many copies of the program
1. 1 answer
2. asked by vinci
3. 636 views
How many moles of H2O are needed to react with 15.0g of CaO forming Ca (OH)2?CaO + H2O --> Ca (OH)2
1. 1 answer
2. asked by alan
3. 632 views
Read “The U.S. Census Bureau Field Data Collection Project: Don’t Count On It” beginning on p. 413 of Essentials of
1. 1 answer
2. asked by beckylynn
3. 631 views
A planet orbits a star, in a year of length 4.46 x 107 s, in a nearly circular orbit of radius 3.17 x 1011 m. With respect to
1. 0 answers
2. asked by leroy
3. 631 views
A tank contains mercury, whose density is 13 600 kg/m3. Find the force exerted by the mercury on a circular plug at the bottom
1. 1 answer
2. asked by hank
3. 604 views
Matt walked 3 miles in 3/4 of an hour. At what rate of speed did he walk in miles per hour?
1. 2 answers
2. asked by vincent
3. 601 views
1. Last year, we had a school festival in fall. I couldn't join the school festival because I was sick and absent from school.2.
1. 1 answer
2. asked by rfvv
3. 600 views
Telephoto lenses allow one to "zoom in" on distant objects, making them bigger. A particular telephoto lens consists of a
1. 0 answers
2. asked by Danny
3. 587 views
could you pl tell me the theme in edgar albert guest's equipment poem
1. 1 answer
2. asked by r s telagathoty
3. 578 views
Do students tend to improve their SAT mathematics (SAT-M) score the second time they take the test/
1. 0 answers
2. asked by todd
3. 576 views
Andrew's salary is $1200 a month plus 4% commission on all his sales. What must the amount of his sales be to earn at least
1. 1 answer
2. asked by vinci
3. 572 views
The ____ definition of glommy is dismal or depressingA. connotative B. denotative A
1. 1 answer
2. asked by Lady T
3. 572 views
part a: Lucy makes pottery to sell. One week , she uses 6 3/4kg of clay next week 2 2/3 clay. HOW much does she use during 2
1. 6 answers
2. asked by sam
3. 571 views
What are the last three digits of the largest perfect square that can be expressed as p^2+pq+q^2, where p and q are (positive)
1. 0 answers
2. asked by Danny
3. 565 views
give an example of how the cells structure relates to its function in the body.My answer is the structure of the cells determine
1. 1 answer
2. asked by Americal
3. 552 views
A 55.0 kg high school baseball pitcher is holding a 149 g baseball as he slides horizontally on a frictionless surface with a
1. 2 answers
2. asked by No clue on this one
3. 552 views
1)The study of geography includesa)living in a dessert b)growing food c)predicting the weather d)studying people e) wearing
1. 4 answers
2. asked by Laura
3. 549 views
A man stands underneath a power line carrying a current of 150 A. If the power line is 15 m above the man, what is the magnetic
1. 1 answer
2. asked by tom
3. 548 views
my answer has ( ) around itWith respect to the eighteenth century, the concept of the "middle ground" is helpful in A.
1. 2 answers
2. asked by carolyn
3. 547 views
the reaction is......CaCO3+2HCl---->CO2+H2O+CaCl2.what mass of HCl will be neutralized by 0.50g ofCaCO3? How do i figure this
1. 1 answer
2. asked by mimmi
3. 544 views
Maryann rolls a 6-sided dice six times. How many ways can she roll the dice so that the sum of her numbers is 10?
1. 2 answers
2. asked by Will
3. 542 views
An automobile tire has a radius of 0.335 m, and its center moves forward with a linear speed of v = 24.1 m/s. (a) Determine the
1. 2 answers
2. asked by katie
3. 535 views
Let x,y be complex numbers satisfyingx+y=a xy=b, where a and b are positive integers from 1 to 100 inclusive. What is the sum of
1. 0 answers
2. asked by Danny
3. 532 views
Identify a current event or contemporary social issue that involves ethical values.
1. 1 answer
2. asked by Ann
3. 531 views
An iron (ƒâ = 7860 kg/m3) cube measuring 15.4 cm on a side is suspended from a wire. Find the tension in the wire when the
1. 1 answer
2. asked by hank
3. 530 views
It takes 1 and 3/4 hours to fill a new underground gasoline storage tank. What part of the tank would be fill if the gasoline
1. 1 answer
2. asked by vincent
3. 530 views
Find the pay P Ken receives for a 49-hour week if the pay x he receives for 40 hours is $180 and the pay y for each additional
1. 3 answers
2. asked by vinci
3. 527 views
Ann bought 2/3 lb of carrots 3/4lb of celery and 7/8lb of onions. How many lbs of vegetables did she buy?
1. 4 answers
2. asked by sam
3. 527 views
Padding 7 miles upstream, Steven and his brother averaged 2 miles per hour. On the way back, their rate of speed was 3 1/2 miles
1. 1 answer
2. asked by andrew
3. 519 views
A boy with a mass of 35.4 kg comes running up behind his stationary father, whose mass is 105.3 kg. If the boy’s velocity
1. 1 answer
2. asked by I have answer just need help with work
3. 518 views
1. Turtle won the race.2. Turtle won the race against Rabbit. 3. Turtle won the race with Rabbit. 4. Turtle beat Rabbit in/at
1. 1 answer
2. asked by rfvv
3. 515 views
You go to a party feeling a little unsure of yourself. When you get there, you feel anxious but aren't sure why. You see a good
1. 1 answer
2. asked by Anonymous
3. 514 views
Brilli the ant placed the numbers 1,2,…,n in order clockwise around a circle. She can create an infinite sequence A={aj}∞j=0
1. 0 answers
2. asked by Ron
3. 514 views
Determine an equation of a sinusoidal function that has a maximum at (5, 4)and a minimum at (2, -10).
1. 1 answer
2. asked by ROBIN
3. 486 views
Brilli the ant placed the numbers 1,2,…,n in order clockwise around a circle. She can create an infinite sequence A={aj}∞j=0
1. 1 answer
2. asked by Danny
3. 486 views
Are these true or false?1. If s is negative, then the square root of s^2 is -s. 2. If r is positive, then the square root of r^2
1. 1 answer
2. asked by Paula
3. 485 views

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