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2011
April

Questions Asked on April 18, 2011

A cake of soap placed in a bathtub of water sinks. The buoyant force on the soap is:a- Zero b- Less than its weight c- Equal to
1. 3 answers
2. asked by DMITRIC
3. 5,962 views
Richard is flying a kite. The kite string makes an angle of 57 degress with the ground. If Richard is standing 100 feet from the
1. 4 answers
2. asked by ashely
3. 5,447 views
In the diagram below of isosceles trapezoid DEFG, DE ll GF. DE = 4x − 2, EF = 3x + 2, FG = 5x − 3, and GD = 2x + 5. Find the
1. 4 answers
2. asked by Jessica
3. 5,442 views
WHAT REFERENCE SOURCE WOULD YOU USE TO FIND THE AVERAGE SNOWFALL IN JANUARY IN NOME,ALASKA????P.S.IS THIS FREE???
1. 21 answers
2. asked by CALLI
3. 5,181 views
Find the surface area of a rectangular prism with a length of 8 inches, a width of 5 inches and a height of 2 inches.so far this
1. 6 answers
2. asked by mary
3. 4,544 views
A ray of light of frequency is 5.09 x 10^14 Hz is traveling from water to medium X. The angle of incidence in water is 45
1. 1 answer
2. asked by Jeshondria
3. 3,535 views
Calculate [OH-] and pH for the following strong base solution: 10.0 mL of 0.0105 M Ca(OH)2 diluted to 500.0 mL
1. 3 answers
2. asked by Kendall
3. 3,259 views
A concave spherical mirror has a radius of curvature 15 cm. A 1 cm tall bulb is placed in front of the mirror such that its
1. 2 answers
2. asked by ashley --
3. 2,918 views
The enthalpy formation of ethanol, C2H5OH, is -277.0 kJ/mol @ 298.15 K. Calculate the enthalpy of combustion of one mole of
1. 3 answers
2. asked by Morgan
3. 2,915 views
Using the subject “usted” and the verb in the imperative, tell your instructor three things she or he must do. Then tell
1. 3 answers
2. asked by Anna
3. 2,597 views
Dispersion in a window pane. In the figure on the left, a beam of white light is incident at angle θ = 51° on a common window
1. 1 answer
2. asked by Jenna
3. 2,531 views
A sample of O2 gas was collected over water at 23ºC and 711 torr. What is the partial pressure of the O2? (The vapor pressure
1. 2 answers
2. asked by jan
3. 2,457 views
A charge of 0.25 C moved from a position where the electric potential is 20 V to a position where the potential is 50 V. What is
1. 1 answer
2. asked by Mikie
3. 2,384 views
Name the lengths of the sides of three rectangles that have perimeters of 14 units.
1. 5 answers
2. asked by leslie
3. 2,307 views
I'm preparing for a test and one of the questions in my text is as follows:In a trivia contest,Sam has drawn a topic he knows
1. 4 answers
2. asked by ann
3. 2,284 views
Find a Cartesian equation for the polar curve y = 5tan(theta)sec(theta). I think I got it but I just wanted to double check.
1. 10 answers
2. asked by Paige
3. 2,277 views
A salt solution can be acidic, basic, or neutral. when dissolved in water, which of the following salts will not affect the pH:
1. 1 answer
2. asked by max
3. 2,220 views
At the time of the birth of a child, a parent wants to begin a college fund that will grow to $50000 by the child's 18th
1. 2 answers
2. asked by Anonymous
3. 1,863 views
In standard (x,y )coordinate plane,the graph of (x-2)^2 + (y+4)^2=9 is a circle.What is the area enclosed by this
1. 1 answer
2. asked by ashley
3. 1,783 views
1) Part A: Two pellets, each with a charge of 3 × 10−6 C,are located 0.03 m apart. What is the electric force between them?
1. 3 answers
2. asked by Anonymous
3. 1,744 views
In how many ways can a committee of five people be selected from seven women and nine men if at least one woman must be in the
1. 2 answers
2. asked by Fakaapo
3. 1,732 views
The input piston of a hydraulic press is 20mm in diameter, and the output piston is 10mm in diameter. an input force of 1.0N
1. 2 answers
2. asked by DMITRIC
3. 1,648 views
Please can you me What a linear inequality describes the graph of a dashed line passing through (0,3) and (6,0) with the space
1. 1 answer
2. asked by sateko
3. 1,645 views
The chart shows the number of cars sold per week at a car dealership during the month of June.Salesperson Week 1 Week 2 Week 3
1. 4 answers
2. asked by Sammy
3. 1,622 views
Ammonia, NH3, for fertilixer is made by causing hydrogen and nitrogen to react at high temperature and pressure. How many moles
1. 1 answer
2. asked by chelsea
3. 1,589 views
What do the following people like? Write the correct form of the verb gustar in each sentence.1. A mí la cena que prepara
1. 4 answers
2. asked by Cierrah
3. 1,584 views
An airplane rises vertically 1000 feet over a horizontal distance of 1 mile. What is the angle of elevation of the airplane's
1. 2 answers
2. asked by Barnie
3. 1,522 views
An airplane rises vertically 1000 feet over a horizontal distance of 1 mile. What is the angle of elevation of the airplane's
1. 2 answers
2. asked by ashely
3. 1,473 views
. Find the volume of the sphere with a radius of 9. Use ð = 3.14 and round your answer to the nearest tenth.4. Find the volume
1. 1 answer
2. asked by BreAnna
3. 1,447 views
The length of a rectangle is 3 times the width . If the perimeter is to be at least 48 meters, what are the possible values for
1. 2 answers
2. asked by Nancy
3. 1,429 views
With the forces in equilibrium if a stationary climber is using a rope which is 60 degrees to the vertical, the rock face is at
1. 1 answer
2. asked by Declan
3. 1,357 views
How does an inventory write-off effect the cash flow statement?
1. 0 answers
2. asked by Rhea
3. 1,357 views
Need help I missed this problem on my test. My answer was 31.8in^2. The right answer was 8.0in^2How should I have worked the
1. 2 answers
2. asked by mary
3. 1,341 views
I missed this problem on my test. I had 23 ft and the correct answer was 16 ft.How should I of worked this problem? A trapezoid
1. 2 answers
2. asked by mary
3. 1,335 views
Find the # of possible choices for a 2 digit password that is greater than 19. Then find the # of possible choices for a 4 digit
1. 1 answer
2. asked by Kory
3. 1,329 views
A salt solution can be acidic, basic, or neutral. when dissolved in water, which of the following salts will make the solution
1. 1 answer
2. asked by max
3. 1,329 views
A hydrogen atom electron in an excited state with n = 7 drops to a lower energy state with n = 3. What is the wavelength of the
1. 1 answer
2. asked by Kamila
3. 1,322 views
Lottery: One million tickets were sold for a lottery in which a single prize will be awarded.a)If you purchase a ticket,
1. 2 answers
2. asked by Brenda
3. 1,308 views
In a reaction vessel, 2.4 mol of Al(OH)3 and 5.3 mol of H2SO4 react.Products: Al2(SO4)3, H2O [I know...] Moles of Al2(SO4)3 in
1. 1 answer
2. asked by Marriot
3. 1,305 views
explain how the wage can adjust to balance the supply and demand for labor while simultaneously equaling the value of the
1. 0 answers
2. asked by gdlola
3. 1,295 views
As vice president of sales for a rapidly growing company, you are grappling with the question of expanding the size of your
1. 0 answers
2. asked by Rico
3. 1,273 views
in 10-15 lines critically discuss 5 ways in which the human or environmental problem impacts on the community
1. 16 answers
2. asked by Tania
3. 1,215 views
Which of the following conditions is not necessary to observe an interference pattern between two sets of waves?Choose one
1. 2 answers
2. asked by ashley --
3. 1,206 views
How many grams of glucose (180g/mole) would be needed to make 100ml of a 1.5 M solution?
1. 0 answers
2. asked by matt
3. 1,201 views
If you were to prepare a 1.00 molal solution of CaCl2 beginning with water at 27.0 C, what would the final temperature of the
1. 2 answers
2. asked by Bob
3. 1,201 views
The lateral area of a regular pyramid is 300 square units. The perimeter of its base is 100 units. Find the slant height of the
1. 1 answer
2. asked by mary
3. 1,200 views
find the point on the line 6x+7y-5=0 closest to (2,2)
1. 1 answer
2. asked by Jane
3. 1,194 views
what is the balance equation of CH3COOH(aq)+NH3(aq)
1. 1 answer
2. asked by yr
3. 1,159 views
An airplane rises vertically 1000 feet over a horizontal distance of 1 mile. What is the angle of elevation of the airplane's
1. 2 answers
2. asked by ashely
3. 1,144 views
Following are the speeds of 40 cars clocked by radar on a particular road in a35-mph zone on a particular afternoon: 30, 36, 42,
1. 2 answers
2. asked by tonya
3. 1,143 views
volume of solid whose base is a circle with radius a, and cross sections of the solid cut perpendicular to the x-axis are
1. 0 answers
2. asked by judy
3. 1,136 views
Hachure lines, or lines with teeth, describe
1. 1 answer
2. asked by cassie
3. 1,136 views
I forgot to include the following sentences. Thank you very much for your help.6) "Anything could happen while we are out
1. 1 answer
2. asked by Mike1
3. 1,116 views
I don't understand how to answer this problem:The base of a solid is bounded by y=x+1 and y= x^2-1. Find the volume of the solid
1. 0 answers
2. asked by Alexandra
3. 1,115 views
so i posted a question very similar to this yesturdya but i have now have a more spesific question. do you guys know any poems
1. 1 answer
2. asked by hannah
3. 1,114 views
scott bought two items at daves fruit market. the cashier told him that he owed $5.49. why is the cashier incorrect? what did
1. 1 answer
2. asked by kylie
3. 1,090 views
When electricity is applied to a molten binary salt, the cation will be reduced and the anion will be oxidized. The electrolysis
1. 2 answers
2. asked by Anonymous
3. 1,084 views
If one leg of a right triangle is 8 inches long, and the other leg is 12 inches long. How many inches long is the triangles
1. 1 answer
2. asked by ashely
3. 1,076 views
What average force is required to stop an 1900 car in 6.0 if the car is traveling at 80 ?
1. 2 answers
2. asked by colleen
3. 1,075 views
the root mean square speed of a certain gaseous oxide is 493 m/s at 20 C. what is the molecular formula of the compound.how is
1. 3 answers
2. asked by CHEMCHEM
3. 1,073 views
Find any absolute maximum and minimum and local maximum and minimum for the function f(x)=x^3-4x+5 on the interval [0,5). Make
1. 5 answers
2. asked by Janet
3. 1,072 views
A patient of mass 75kg sits in a wheelchair of mass 30kg. What is the force needed to push both up a 30 degree slope? If the
1. 1 answer
2. asked by Declan
3. 1,069 views
Write a mechanism for the aldol reaction of 3,3-dimethyl-2-butanone.
1. 0 answers
2. asked by Anonymous
3. 1,059 views
Josh has 15 sports cards. He has 3 more baseball cards than basketball cards. How many baseball cards does he have?
1. 2 answers
2. asked by Anonymous
3. 1,055 views
draw at least two shapes with an area of 6 square units and a perimeter of 12 units
1. 2 answers
2. asked by Rayna
3. 1,055 views
1.¿Qué aprendas en la clase de español?Yo aprendo hablar y escribir en español. 2.¿Qué piensas hacer mañana? Pienso ir a
1. 1 answer
2. asked by Jordie
3. 1,035 views
Find the equation that describes the energy of a photon emitted as an electron relaxes from a higher energy level to a lower one
1. 2 answers
2. asked by Toni Jones
3. 1,024 views
I urgently need you to revise these questions as a post-reading activity.Can you please check the questions? 1) Jamal is
1. 1 answer
2. asked by Mike1
3. 1,023 views
How do you find one fourth or two thirds?
1. 1 answer
2. asked by Kelly
3. 1,015 views
How large a current would a very long, straight wire have to carry so that the magnetic field 2 cm from the wire is equal to 1 G
1. 2 answers
2. asked by kamal
3. 1,012 views
find the surface area of a right cylinder with a diameter of 4cm and a height of 6cm. Round to the nearest hundredth.Book answer
1. 1 answer
2. asked by mary
3. 995 views
find Sn for geometric sequence with a1 = 8, n = 9, and r = -1?Sn = a1(1-r ^n) / (1-r) = 8(1-1)/(1+1) = 8(0)/2 = 0 is this
1. 0 answers
2. asked by anonymous
3. 994 views
From the top of a lighthouse 210 feet high, the angle if depression to a boat is 27 degress. Find the distance from the boat to
1. 2 answers
2. asked by ashely
3. 993 views
1. In this problem, we analyze the profit found for sales of decorative tiles. A demand equation (sometimes called a demand
1. 0 answers
2. asked by EJ
3. 983 views
The sixth harmonic of a 70 cm long guitar string has a frequency of 557.14 Hz. What is the velocity of sound in the guitar
1. 1 answer
2. asked by ashley --
3. 983 views
What is the value of the gravitational acceleration at a height of 2000 km above the surface of the Earth?
1. 0 answers
2. asked by azure
3. 977 views
Calculate the equilibrium constant for the following reaction of a weak acid and base HF + NH3 <=> NH4+ + F-given Ka (HF) = 6.9
1. 2 answers
2. asked by max
3. 970 views
I urgently need to know a good site where to find reading comprehensions at a pre-intermediate, intermediate level to be set as
1. 2 answers
2. asked by Mike1
3. 968 views
how many grams of solid KOH is needed to neutralize 1.00 L of 0.250 M HNO3 solution?
1. 1 answer
2. asked by Helena
3. 958 views
What is decoupage? i don't understand.
1. 1 answer
2. asked by Nisa
3. 954 views
Where should the birthday candle of height 5 cm be placed in front of a convex lens of focal length 15 cm so that a real image
1. 0 answers
2. asked by ashley --
3. 951 views
which of the following statements concerning air resitance is false?a. skydiverscan influence their speed by changing thier body
1. 0 answers
2. asked by deonne
3. 928 views
A valence election in an atom of sulfur is excited by heating a sample. The electron jumps from the s orbital to the p orbital.
1. 1 answer
2. asked by kamila
3. 926 views
4. How would you convert 9.0 grams of water to moles?
1. 0 answers
2. asked by Anonymous
3. 925 views
when 5.00 g of CaCl2 dissolves in 50.0g of water, what is the boiling point of the solution
1. 1 answer
2. asked by Leah
3. 918 views
A sphere of mass M is supported by a string that passes over a pulley at the end of a horizontal rod of length L. The string
1. 0 answers
2. asked by Anonymous
3. 911 views
From the top of a lighthouse 210 feet high, the angle if depression to a boat is 27 degress. Find the distance from the boat to
1. 2 answers
2. asked by Barnie
3. 908 views
Hey, we covered limits at the beginning of the year, but I cannot remember how to do them at all.>>>what is the limit, as x
1. 1 answer
2. asked by Rachel
3. 903 views
Calculate the angular velocity of the minute hand of a clock.
1. 1 answer
2. asked by amy
3. 894 views
When electricity is applied to a molten binary salt, the cation will be reduced and the anion will be oxidized. The electrolysis
1. 2 answers
2. asked by Anonymous
3. 881 views
When graph a linear inequality, we use solid line if the sign of inequality is < or >.it is true or false
1. 1 answer
2. asked by sateko
3. 879 views
I have a circle with a radius of 20in. Arc mEGF = 235(not shaded part of circle) find the area of arc EF (shaded sector of
1. 1 answer
2. asked by mary
3. 856 views
an electric motor lifts on elevator 9 m in 15s by exerting an upward force of 1.2 x 10^4 calculate the power
1. 2 answers
2. asked by jack
3. 845 views
Tom's new CD player has a 9-disc changer. If she owns 45 CDs, in how many ways can he choose 9 CDs to listen to?After picking 9
1. 1 answer
2. asked by Tracy
3. 834 views
a worker dig a ditch with perpendicular sides.It is 1.05m wide at the top and at the bottom. If it is 1.80m deep and 21.6m
1. 1 answer
2. asked by emily
3. 826 views
Mi primera clase que tengo es la orquesta. No es difícil pero el profesor es muy estricto. Mi segunda clase es el álgebra. Es
1. 3 answers
2. asked by Mellie
3. 814 views
Ammonium sulfate reacts with a solution of sodium hydroxide to produce sodium sulfate, ammonia gas and water. Calculate the
1. 1 answer
2. asked by John
3. 799 views
The nitrogen-to-hydrogen single bond energy is 389 kJ/mol in NH3. What is the minimum frequency of radiation having the
1. 1 answer
2. asked by Kamila
3. 796 views
1) There is a solution to x = -(y-5)^2 and x = (y -5 )^2 + 7a) true b) false 2) There is no real solution to y = -1 and y = x^2
1. 1 answer
2. asked by anonymous
3. 792 views
I have three more questions I do not understand.1. Two points (-1,1) and (3,-2) are graphed on a coordinate plane. What is the
1. 0 answers
2. asked by Sammy
3. 787 views

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