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Questions Asked on November 6, 2011

when a 2.50 kg object is hung vertically on a certain light spring described by hookes law the spring stretches 2.76 cm. A) what
1. 3 answers
2. asked by joe
3. 18,402 views
a 3.5L sample of a 5.8M NaCl solution is diluted to 55L.What is the molarity of the diluted solution
1. 1 answer
2. asked by Monique
3. 9,358 views
Describe how you would make 500.0mL of a 0.200M NaOH solution from a 15.0 stock NaOH conentration
1. 1 answer
2. asked by Monique
3. 6,839 views
Hydrochloric acid is usually purchased in concentrated form with a 37.0% HCL concentration by mass and a density of 1.20g/mL.
1. 2 answers
2. asked by Monique
3. 6,514 views
A KNO3 solution is made using 88.4g of KNO3 and diluting to a total soultion volume of 1.50l. Calculate the molarity and mass
1. 1 answer
2. asked by Monique
3. 4,552 views
An atom of potassium (K) has 19 protons: 18 electrons in its inner electron energy levels and 1 electron in its outer energy
1. 1 answer
2. asked by Josh
3. 4,388 views
A 45.8mL sample of 5.8M KNO3 solution is diluted to 1.00L. What volume of the diluted solution contains 15.0 g of KNO3.
1. 2 answers
2. asked by Monique
3. 4,274 views
Find a point c satisfying the conclusion of the Mean Value Theorem for the following function and interval.f(x)=x^−1 [1,9]
1. 1 answer
2. asked by saud
3. 4,169 views
While you sleep, your body is using energy at a rate of 77 W. How many food calories are used during an eight hour period? One
1. 1 answer
2. asked by Anne
3. 4,070 views
what is the molarity of an aqueous solution that is 6.75% glucose by mass? Assume a density of 1.03 g/ml
1. 2 answers
2. asked by swtnblk
3. 3,860 views
Two posts, one 12 feet high and the other 28 feet high, stand 30 feet apart. They are to be stayed by two wires, attached to
1. 1 answer
2. asked by Kokos
3. 3,799 views
A 75g person on skis is going down a hill sloped at an angle 30.the coefficient of kinetic friction between the skis and the
1. 1 answer
2. asked by Anonymous
3. 3,211 views
A survey of 1000 veiwers conducted by a television station produced the following data:40% watched the news at 12:00 60% watched
1. 1 answer
2. asked by kim
3. 3,053 views
Problem 17.26A thin film of (MgF2) n= 1.38 coats a piece of glass. Constructive interference is observed for the reflection of
1. 1 answer
2. asked by Paige
3. 2,848 views
A dam blocks the passage of a river and generates electricity. Approximately 57,000 kg of water fall each second through a
1. 2 answers
2. asked by Anne
3. 2,713 views
The tops of the towers of the Golden Gate Bridge, in San Francisco, are 227m above the water. Suppose a worker drops a wrench
1. 1 answer
2. asked by Danielle
3. 2,527 views
The measure of an exterior angle of an isosceles triangle is x degrees. What are the possible angle measures of the triangle in
1. 3 answers
2. asked by Anonymous
3. 2,335 views
typically a bullet leaves a standard 45 caliber pistol at 262 m/s. if it takes i millisecond to transverse the barrel, determine
1. 2 answers
2. asked by Amanda and Leah
3. 2,326 views
When the equationFe2(SO4)3(aq) + 3Ba(OH)2(aq) ! is completed and balanced, a term in the balanced equation is 1. 2 Fe(OH)(s). 2.
1. 2 answers
2. asked by lynn
3. 2,317 views
A ball player hits a home run, and the baseball just clears a wall 17.0 m high located 124.0 m from home plate. The ball is hit
1. 1 answer
2. asked by Jennifer
3. 2,306 views
Problem 19.33Two light bulbs are 1.0 m apart. Part A - From what distance can these light bulbs be marginally resolved by a
1. 1 answer
2. asked by Paige
3. 2,209 views
If the standard deviation for waiting times in a line is 5 minutes, the standard deviation for the averages of 30 randomly
1. 2 answers
2. asked by Sarah
3. 2,185 views
What is the Lewis structure of the Pb2+ion?
1. 1 answer
2. asked by Andrinna
3. 2,112 views
A car is being driven along a country road on a dark and rainy night at a speed of 20 m/s. The section of road is horizontal and
1. 4 answers
2. asked by Anne
3. 2,088 views
Find the accumulated value of an investment of $15,000 at 7% compounded semiannually for 4 yrs
1. 1 answer
2. asked by Anonymous
3. 2,040 views
A car-rental agency charges $38 per day plus $0.21 for each mile driven. Sandra paid $88.40 for renting a car from them for one
1. 1 answer
2. asked by Anonymous
3. 2,037 views
A doctor at a local hospital is interested in estimating the birth weight of infants. How large a sample must she select if she
1. 2 answers
2. asked by WEB
3. 1,936 views
A tractor pulls forward a moving plow with a force of 2.5*10^4N, which is just large enough to overcome friction.A) what are the
1. 4 answers
2. asked by Amy
3. 1,907 views
You deposit $1000 in an account that pays 8% interest compounded semiannually. After 2 years, the interest rate is increased to
1. 1 answer
2. asked by Kelly
3. 1,849 views
TRANSLATE THE FOLLOWING SENTENCE INTO ANEQUATION DO NOT SOLVE. tHIS IS WHAT I GOT Ten more than three times a number is 130.
1. 6 answers
2. asked by Angela
3. 1,684 views
A boy kicks a football with an initial velocity of 20 m/s at an angle of 30 above the horizontal. What is the vertical component
1. 2 answers
2. asked by Jj
3. 1,558 views
3.Given the function f defined by f(x)=2x^3-3x^2-12x+20a.Find the zeros of f b.Write an equation of the line perpendicular to
1. 3 answers
2. asked by Yoona
3. 1,524 views
I am writing a paper on "On the Amtrak from boston to new york city" by sherman alexie. I need to detail how the poet used
1. 1 answer
2. asked by m
3. 1,514 views
The pH of an arterial blood sample is 7.15. upon acidification of 10 ml of the plasma 5.91ml of CO2 is produced at standard
1. 1 answer
2. asked by Maria
3. 1,503 views
What is Walmart internal alignment?What is walmart external competitiveness? thanks
1. 1 answer
2. asked by larvi
3. 1,477 views
the question says: write down all factors of 6Show that the sum of all the factors of 6 is equal to 2 x 6 (i got the first part
1. 1 answer
2. asked by Viola
3. 1,405 views
Use rational root theorem and the factor theorem to help solve the following equationX4-2x3-13x2+38x-24=0
1. 1 answer
2. asked by Ruth
3. 1,397 views
Use enthalpies of formation from the textbook to calculate the standard enthalpy of the reaction for the following methane-
1. 1 answer
2. asked by Kay
3. 1,364 views
The handmade snuffbox industry is composed of 100 identical firms, each having short – run total costs given by STC = 0.5q2 +
1. 0 answers
2. asked by Pravinesh
3. 1,289 views
Find value oflog (base 8)log (base 2) log (base 3)log (base 3) (27)^3 I endedup with 1.000063462 which was wrong
1. 2 answers
2. asked by TC
3. 1,283 views
Bill drove from Ajax to Bixby at an average speed of 50 mph. On the way back he drove at 60 mph. The total trip took 42/5 hours
1. 1 answer
2. asked by Mareia
3. 1,269 views
A hockey puck slides off the edge of a table with the initial velocity of 20m/s. The table height is 2.0 m. What is the
1. 1 answer
2. asked by Jj
3. 1,264 views
In an Atwood machine, one block has a mass of M1 = 520 g and the other has a mass of M2 = 320 g. The frictionless pulley has a
1. 2 answers
2. asked by Spencer
3. 1,238 views
Find the interest. Round to the nearest cent in necessary.Principal - $178 Rate - 4% Time in months - 12
1. 2 answers
2. asked by Alex L.
3. 1,214 views
A car[enter will be building a stained glass jewelry box. The frame of the box is to be built from a 48 inch stripe of metal
1. 1 answer
2. asked by Demetra Mallios
3. 1,211 views
Can you analyze and label at least 10 advertisements as to whether they are competitive or informative?
1. 2 answers
2. asked by kay
3. 1,198 views
preparation of copper sulphate crystalsexcess copper oxide is needed above a)how do you know the solid is in excess? b)how do
1. 0 answers
2. asked by chloe
3. 1,190 views
CFCs such as CF2Cl2 are refrigerants whose use has been phased out because their destructive effect on Earth's ozone layer. The
1. 1 answer
2. asked by Kay
3. 1,173 views
What is the mass of a ball with a velocity of 35.1 m/s and a wavelength of 8.92 x 10^-34 m
1. 0 answers
2. asked by Anonymous
3. 1,167 views
A wave geneerantor produces 16.0 pulses in 4.00s .What is the frequence ?
1. 2 answers
2. asked by Kid
3. 1,144 views
your weight is 600 newtons and you have just finished building a raft which weighs 1000 newtons. what is the smallest upthrust
1. 2 answers
2. asked by poppy
3. 1,142 views
I am still trying to figure out the meter in the poem On the Amtrak from Boston to New York City. Looking at the types of meter
1. 1 answer
2. asked by m
3. 1,136 views
Alpine Bicycle Company manufactures mountain bikes. The following data for May of the current year are available:Use the minus
1. 0 answers
2. asked by Anonymous
3. 1,130 views
Health care workers are at risk of being exposed to blood-borne pathogens through needle-stick and other sharp object injuries.
1. 1 answer
2. asked by Darshana
3. 1,121 views
Two hoses are connected to a swimming pool. Working together, they can fill the pool in 4 hr. The larger hose, working alone,
1. 1 answer
2. asked by Skylar
3. 1,109 views
1. In which of the following cases is work done on the object?A. Lifting an object off the floor. B. Pushing an object, but it
1. 1 answer
2. asked by kiren
3. 1,099 views
A wire is frictionless between points A and B and rough between B and C. A is 5m above the ground, B is zero, and C is 2m above
1. 0 answers
2. asked by Katie
3. 1,099 views
how much of a 1.50M solution sodium sulfate solution in milliliters is required to completely precipitate all the barium in
1. 1 answer
2. asked by Monique
3. 1,092 views
There are so many industries having websites for retail. However, not every industry is successful in online retail. In your
1. 1 answer
2. asked by lost
3. 1,077 views
Microsoft has been a giant in the software industry. Can we define Microsoft as a monopoly? Please explain. In addition, whether
1. 1 answer
2. asked by lost
3. 1,055 views
A particle moves on the x –axis so that its position at any time is given by x(t) = 2t3 + 1.a. Find the acceleration of the
1. 0 answers
2. asked by Yoona
3. 1,051 views
Minor bills are much more likely to pass than major bills.a. yes b. no It is an obviously yes because minor bills are through
1. 1 answer
2. asked by HM
3. 1,050 views
Suppose that a firm is currently employing 10 workers, the only variable input, at a wage rate of $100. The average physical
1. 0 answers
2. asked by lost
3. 1,041 views
I left out the following sentences.Thank you. 1)Of (among?) the toothed whales Narwhal whales are his favourite. They are known
1. 1 answer
2. asked by Henry2
3. 1,040 views
A cuboid has total surface area of 40 meter squar and its lateral surface area is 26 meter squar .Find the area of its surface
1. 3 answers
2. asked by Chandan kumar
3. 1,039 views
Duralin is an alloy of aluminium containing4.5% manganese, 3.5% copper, and 0.45% magnesium. How much magnesium is present in a
1. 2 answers
2. asked by lynn
3. 1,025 views
Write a true sentence using either < or>-7.82 -7.802
1. 1 answer
2. asked by Angela
3. 1,022 views
Calculate and write result in a+bi form.5+10i/3-4i
1. 1 answer
2. asked by Mary
3. 1,016 views
Mike completed 19 math problems before dinner for tonight’s homework, and he completed x problems after dinner. Write an
1. 2 answers
2. asked by adam
3. 1,014 views
A right triangle with hypotenuse 5 inches is revolved around one of its legs to generate a right circular cone. Find the radius
1. 1 answer
2. asked by jj snoke
3. 1,011 views
A 135-kg steer gains 3.5kg/day and costs 80 cents/day to keep. The market price for beef cattle is $1.65/kg, but the price falls
1. 1 answer
2. asked by Jamie
3. 1,009 views
OptimizationAn offshore oil well is 2km off the coast. The refinery is 4 km down the coast. Laying a pipe in the ocean is twice
1. 0 answers
2. asked by lele
3. 999 views
The playground at molly's school is in the shape of an equilateral triangle.The playground at david's school is in the shape of
1. 1 answer
2. asked by Johnny
3. 971 views
In a mass spectrometer, singely ionized carbon-12 (normal carbon of atomic mass number 12) has a radius of curvature of 9 cm.
1. 1 answer
2. asked by Arielle
3. 947 views
to what volume should you dilute 125mL of an 8.00M CuCl2 solution so that 50.0mL of the diluted solution contains 5.9g KNO3I
1. 1 answer
2. asked by swtnblk
3. 932 views
often you can write an equation to solve a problemneed help these 3 1) a band made a profit of $352 from a concert. the band
1. 5 answers
2. asked by marko
3. 930 views
There are two particles (1 and 2) that are moving around in space. The force that particle 2 exerts on 1 is given by:F21(t)=Fx*e
1. 0 answers
2. asked by Jerry
3. 930 views
Trying to solve this rational inequality but can't figure how to factor the numerator. ((3x-2x^2)/(4-x^2))<((3+x)/(2-x))
1. 2 answers
2. asked by Joe
3. 927 views
select the equations of all lines through the orgin that are tangent to the curve y=x^3-8x^2-7x
1. 1 answer
2. asked by Roz
3. 926 views
A forest fire is burning down a narrow valley 3 miles wide at a speed of 40 feet per minute. The fire can be contained by
1. 0 answers
2. asked by Anonymous
3. 923 views
At 1:00 p.m. ship A is 25 km due north of ship B. If ship A is sailing west at a rate of 16km/h and ship B is sailing south at
1. 7 answers
2. asked by Becky
3. 915 views
Problem 1: A long embankment is located on a soil profile consisting of 4m of medium clay followed by 8m of medium to dense sand
1. 0 answers
2. asked by Can someone help me please?
3. 899 views
What is the volume in gallons of a rectangle 118" by 60" by 6"
1. 1 answer
2. asked by Norma
3. 897 views
A 250 L vessel is evacuated and then connected to a 50.0 L bulb with compressed nitrogen. The pressure in the combined
1. 2 answers
2. asked by Anonymous
3. 864 views
EVALUATE5x-3y ________ for x=3 and y=4 7
1. 1 answer
2. asked by Angela
3. 862 views
The chief economist for Argus Corporation, a large appliance manufacturer, estimated the firm’s short- run cost function for
1. 0 answers
2. asked by lost
3. 861 views
Zinc chloride (ZnCl2) is 52.02% chlorine bymass. What mass of chlorine is contained in 53.6 g of ZnCl2? Answer in units of g
1. 0 answers
2. asked by lynn
3. 856 views
You are planning to estimate a short- run production function for your firm, and you have collected the following data on labor
1. 0 answers
2. asked by lost
3. 851 views
a pasture is twice as long as it is wide. Its area is 115,200 ft square. How wide is the pasture
1. 1 answer
2. asked by lan
3. 851 views
Which of the following statements about Texas state legislative elections is true?a. There are more competitive seats than safe
1. 2 answers
2. asked by HM
3. 843 views
in saturated sugar solutionswhat is the solute? what is the solvent?
1. 2 answers
2. asked by Ivan
3. 842 views
1.Estimate 45 x 56 using front-end.2.Estimate 45 x 56 using rounding.
1. 2 answers
2. asked by Johnny
3. 826 views
If 395 grams of water at 21 Celsius absorbs 285kJ of heat from a mountain climbers stove at an elevation where the boiling point
1. 1 answer
2. asked by Kay
3. 821 views
A 25.0 kg pickle is accelerated from rest through a distance of 6.0 m in 4.0 s across alevel floor. If the friction force
1. 1 answer
2. asked by steve
3. 797 views
when finding the area to the left of the Z score and Z= 1.43 do i subtract the z score from one or is that only when finding the
1. 1 answer
2. asked by kate
3. 792 views
an you help me please to get an ideas or relevant answers to the questions. thank you1. how does money affect in business firms.
1. 0 answers
2. asked by jessie
3. 787 views
The base of a triangle is on the x-axis, one side lies along the line y=3x, and the third side passes through the point (1,1).
1. 1 answer
2. asked by Sribava
3. 785 views
Eric is twice as old as his brother Lucas. If 4 is subtracted from Eric's age and 4 is added to Lucas's age, their ages will be
1. 4 answers
2. asked by Anonymous
3. 781 views
Why are your ears at the side of your head and not in front where your eyes are?
1. 3 answers
2. asked by Jen
3. 781 views
The strategies for writing positive or neutral message.is my response correct?: In the opening avoid personal information state
1. 2 answers
2. asked by Bryan
3. 780 views

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