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Questions Asked on March 8, 2013

copper compounds such as copper (II) sulfate are toxic. before disposal, these compounds must be treated to reduce their
1. 4 answers
2. asked by Josh
3. 7,271 views
If an open box is made from a tin sheet 7 in. square by cutting out identical squares from each corner and bending up the
1. 2 answers
2. asked by Jacob
3. 6,024 views
A C1= 2.50uF capacitor is charged to 862 V and a C2= 6.80uF capacitor is charged to 660 V . These capacitors are then
1. 1 answer
2. asked by Steve
3. 5,731 views
A rigid container holds hydrogen gas at a pressure of 3.0 atm and a temperature of 20 degrees Celsius. What will the pressure be
1. 4 answers
2. asked by deena
3. 5,367 views
At a certain temperature, the equilibrium constant for the following chemical equation is 2.90. At this temperature, calculate
1. 1 answer
2. asked by marthy
3. 4,431 views
In what ways is your standard of living different from that of your parents or grandparents when they were your age? Why have
1. 2 answers
2. asked by roger
3. 4,179 views
A fast-moving superhero in a comic book runs around a circular, 70-m-diameter track five and a half times (ending up directly
1. 2 answers
2. asked by Leanna
3. 3,421 views
When a diprotic acid, H2A, is titrated by NaOH, the protons on the diprotic acid are generally removed one at a time, resulting
1. 2 answers
2. asked by Franklin
3. 2,940 views
Pat recorded the weights of the first ten fish she caught and released at Mirror Lake this season. The weights were 8 lb, 6 lb,
1. 3 answers
2. asked by robert
3. 2,778 views
A nurse 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 Clifford
3. 2,585 views
A 50.0g ball of clay traveling east at 3.00 m/s collides and stickstogether with a 50.0g ball of clay traveling north at
1. 2 answers
2. asked by Jenny
3. 2,480 views
a diver dives from a cliff .when her centre of gravity is 46 ft above the surface of the water. her initial vertical velocity
1. 5 answers
2. asked by E
3. 2,381 views
A DVD case is 9/16 in. Thick. How many of these cases will fit on a shelf that is 1 1/2 ft wide
1. 6 answers
2. asked by Michelle
3. 2,279 views
In a parallelogram the base and height are in the ratio 5:2 if the area of parallelogram is 360 meter square, find its base and
1. 7 answers
2. asked by Hitoshi
3. 2,222 views
Application The steps to the front entrance of a public building rise a total of 1 m. A portion of the steps will be replaced by
1. 1 answer
2. asked by Anonymous
3. 2,146 views
The area of a rectangular floor is 8x+6x-20. The width of the desktop is 2x+4. What is the length of the floor?
1. 4 answers
2. asked by Candy
3. 1,922 views
A swimming pool is in the form of a semicircular figure. Its width is 20 ft. and that parallel portions of the sides are each 20
1. 1 answer
2. asked by tmouery
3. 1,864 views
How did Nubia's physical features affect civilization in the region?
1. 4 answers
2. asked by Anonymous
3. 1,835 views
Pat recorded the weights of the first ten fish she caught and released at Mirror Lake this season. The weights were 8 lb, 6 lb,
1. 2 answers
2. asked by robert
3. 1,824 views
What is the last stage of the water cycle?Select one: a. Transpiration b. Evaporation c. Condensation Question 2 Which of the
1. 1 answer
2. asked by paragonnova
3. 1,720 views
1.Name the solid with the description as a figure that has one base that is a rectangle and four lateral surfaces that are
1. 13 answers
2. asked by Delilah
3. 1,679 views
1. List the terms in the expression below, place a comma between each term.19cd + 6d^2 + 8 2. List the coefficients in the
1. 7 answers
2. asked by gary
3. 1,678 views
write the equation of a sine function whose amplitude: 2 period: π/2 phase shift: 2/3
1. 2 answers
2. asked by Daijha
3. 1,624 views
Determine the implied domain of the given function. Express in interval notation(-4x^(2)-3x)/(2)
1. 4 answers
2. asked by Cymi
3. 1,603 views
Oxidation of bis(bipyridine) copper (I) ion by molecular oxygen is described by the equation:Cu(C10H8N2)2+(aq) + O2(aq)
1. 1 answer
2. asked by Sabrina P
3. 1,601 views
You decide to sell short 100 shares of Charlotte Farms when it is selling at its yearly high of $56. Your broker tells you that
1. 1 answer
2. asked by Mwende
3. 1,570 views
Application Giovanni is flying his Cessna airplane on a heading as shown. His instrument panel shows an air speed of 130 mi/h.
1. 1 answer
2. asked by x
3. 1,536 views
Dopamine is a neurotransmitter—a chemical released by nerve cells to send signals to other nerve cells. Activities like sex
1. 1 answer
2. asked by ismail
3. 1,535 views
a square kitchen floor can be exactly covered withe square tiles that are either 9 inches or 15 inches on a side. what is the
1. 2 answers
2. asked by jack
3. 1,501 views
There are a total of 103 foreign language students in a high school where they offer Spanish, French, and German. There are 19
1. 4 answers
2. asked by Lane
3. 1,445 views
fuzzy silver coating is impure silver. it can be converted back into silver nitrate by reacting it with nitric acid what has
1. 1 answer
2. asked by Josh
3. 1,439 views
a grapefruit is tossed straight up with an initial velocity of 50 ft/sec. the grapefruit is 5ft above ground when released. how
1. 2 answers
2. asked by Alc
3. 1,415 views
The IQ scores are normally distributed with a mean of 100 and a SD of 15.A) What is the probability that a randomly person has
1. 1 answer
2. asked by Sandy
3. 1,407 views
A ship sailing on a course bearing 036 degrees is 5500 metres due south of a lighthouse.If the ship continues on this
1. 2 answers
2. asked by Shane
3. 1,344 views
(ii) between 0 and 100.0 mL NaOH addedH2A H2O HA - Na+ A2- OH - (iii) 100.0 mL NaOH added H2A H2O HA - Na+ A2- OH - (iv) between
1. 5 answers
2. asked by Franklin
3. 1,328 views
Scientists can determine the age of ancient objects by a method called radio carbon dating.The bombardment of the upper
1. 1 answer
2. asked by Emily
3. 1,321 views
The difference of the cubes of two consecutive odd positive integers is 400 more than the sum of their squares. Find the sum of
1. 0 answers
2. asked by John
3. 1,282 views
How many perfect squares less than 1000 end with the digit 6?
1. 1 answer
2. asked by John
3. 1,268 views
Mature phloem is a live tissue,whereas xylem is dead when mature.Explain why it is necessary for phloem to be alive to be
1. 0 answers
2. asked by Shane
3. 1,237 views
the sum of two numbers is 58. the smaller number is 18 less then the larger number what are the numbers?
1. 1 answer
2. asked by Anonymous
3. 1,194 views
A ball of mass 0.3 kg, initially at rest, is projected from ground level toward a wall that is 27.0 m away. The ball's velocity
1. 1 answer
2. asked by Jalen
3. 1,178 views
Identify the property or rule that justifies each step in the calculation.4/7k+(j+1/7k) ____________ 4/7k+(1/7k+j) ___________
1. 1 answer
2. asked by syram
3. 1,169 views
Find the pH and volume (mL) of 0.447 M HNO3 needed to reach the equivalence point(s) in titrations of each of the following.(a)
1. 1 answer
2. asked by Franklin
3. 1,159 views
A 50.0 mL sample of 0.10 M pyridine, C5H5N, is titrated with 0.2 M HBr. Calculate the pH to one decimal place when the following
1. 1 answer
2. asked by Katie
3. 1,141 views
Two six-sided dice each have the numbers 1 through 6 on their faces. Neither die is fair, but they are both weighted the same.
1. 1 answer
2. asked by Anonymous
3. 1,141 views
a hexagonal pyramid has a base with and area of 25 in2 and is 7 in tall what is the volume of the pyramid rounded to the nearest
1. 2 answers
2. asked by lol
3. 1,130 views
small one-cylinder gasoline engines sometimes use a device called a magneto to supply current to the spark plug. A permanent
1. 2 answers
2. asked by Anonymous
3. 1,128 views
Karina earned $60 from her part time job. She spent 3/10 of it on food and 1/4 of it on music. How much money does she have
1. 4 answers
2. asked by Michelle
3. 1,115 views
During a 74-ms interval, a change in the current in a primary coil occurs. This change leads to the appearance of a 4.6-mA
1. 1 answer
2. asked by Anonymous
3. 1,113 views
Using a wrench 0.4 m long, a force of at least 100 N is needed to turn anut. (a) How large a torque is required? (b) How large a
1. 1 answer
2. asked by waleed
3. 1,107 views
An insurance company is offering a new policy to its customers. Typically, the policy is bought by a parent or grandparent for a
1. 1 answer
2. asked by Shell
3. 1,045 views
If you start with 200 ml of 0.1M HEPES buffer (pH 7.5) and add 1.25 ml of 0.5M HCl, what will the final pH be? (The pKa of HEPES
1. 4 answers
2. asked by Kailyn
3. 1,044 views
Two identical +9.5uF point charges are initially 3.5cm from each other.If they are released at the same instant from rest, how
1. 1 answer
2. asked by Steve
3. 1,041 views
Two identical +9.5uF point charges are initially 3.5cm from each other.If they are released at the same instant from rest, how
1. 3 answers
2. asked by Steve
3. 1,035 views
NAME the Property of Multiplication used at each step to simplify the equations. For each a b and cA. (4)(0.25)(3.7) B. (1)(3.7)
1. 4 answers
2. asked by noahc
3. 1,030 views
What are the social effects on you and your family if you abuse the drug LSD?
1. 1 answer
2. asked by Anonymous
3. 1,025 views
A ball is thrown upward with an initial velocity of 35 meters per second from a cliff that is 80 meters high. The height of the
1. 1 answer
2. asked by Sherry
3. 1,016 views
An experiment requires 0.7 M NH3(aq). Thestockroom manager estimates that 15 L of the base is needed. What volume of 15 M
1. 2 answers
2. asked by Matthew
3. 1,015 views
An advertising agency conducted a survey and found that the number of units sold, N, is related to the amount a spent on
1. 4 answers
2. asked by Tichie
3. 1,002 views
THE COMMUTERSensible Sally has a job that is 35 miles from her home. She needs to be at work by 8:15 a.m. Sally wants to
1. 0 answers
2. asked by sarah
3. 973 views
There are a total of 103 foreign language students in a high school where they offer Spanish, French, and German. There are 19
1. 1 answer
2. asked by Lane
3. 968 views
Mike is saving money for a new bike that costs $180.00. If m represents the amount of money he has saved so far, which
1. 4 answers
2. asked by john
3. 965 views
A sector AOB of a circle, centre O, radius r cm, where the acute angle AOB is theta radians. Given that the perimeter of the
1. 0 answers
2. asked by lindsay
3. 964 views
I don't know what 4r=96 means. Also I don't know what 51=3n means!😰😁😱😨📝HELP! It's due tomorrow
1. 3 answers
2. asked by Grace
3. 943 views
A car is moving at a constant velocity when it is involved in a collision.the car comes to rest after 0.45sec with an average
1. 0 answers
2. asked by Gift
3. 937 views
Write ten sentences about different people places or things. Begin each sentence with a compound subject. Make sure the compound
1. 4 answers
2. asked by Jerald
3. 937 views
slope of the line parallel to y=6x-8
1. 1 answer
2. asked by Ken
3. 937 views
After walking due west,turning and walking due south a man is 900 metres from his starting point and bearing 205 degrees from
1. 3 answers
2. asked by Shane
3. 933 views
How successful do you think Helen Bowers’s new plan will be?
1. 2 answers
2. asked by Chandra
3. 927 views
What volume of ethanol must be diluted with water to prepare 768 mL of 0.873 M solution? The density of ethanol is given as
1. 1 answer
2. asked by Agnes
3. 922 views
What is a good topic sentence for an essay about eating insects?*The article (source where I got the info from) was about insect
1. 1 answer
2. asked by Emma
3. 921 views
A buffer consists of 0.14 M KHCO3 and 0.61 M K2CO3. Carbonic acid is a dirpotic acid with Ka1= 4.5*10^-7 and Ka2= 4.7*10^-11.a)
1. 1 answer
2. asked by Justine
3. 917 views
I know the higher the literacy rate the higher the GDP and standard of living in a country. I'm having trouble with a study
1. 1 answer
2. asked by Brandi
3. 902 views
Mr.Quakers science class has a 16 gallon aquarium that is 3/5 full. How much water is needed to fill it?
1. 3 answers
2. asked by Michelle
3. 879 views
A 6 ft person has a shadow 5ft long. A nearby tree has a shadow 30ft long. How tall is the tree?
1. 1 answer
2. asked by Cody
3. 866 views
choose a number 1 to 100. What is the probability that the number is not a multiple of 5?
1. 2 answers
2. asked by Nate
3. 864 views
a current of .500 A is used for the electrolytic decomposition of water. how long (in hours) will it take to produce 1.0 L
1. 1 answer
2. asked by ivy jean
3. 849 views
given that f, g, and h are differentiable functions f(g(h(x))) = x what is h'(x) in terms of f, g, f', g', and h'?I plugged in
1. 0 answers
2. asked by Mary
3. 835 views
A salesperson at a clothing store earns a 5% commission on all sales. How much commission does the sale person earn on a 300$
1. 1 answer
2. asked by andy
3. 815 views
Two patrol boats M3 and M7 leave port at the same time.M3 heads due west and M7 on a bearing 227 degrees.After 30 minutes M7 has
1. 2 answers
2. asked by Shane
3. 813 views
Two flat surfaces are exposed to a uniform, horizontal magnetic field of magnitude 0.79 T. When viewed edge-on, the first
1. 1 answer
2. asked by Anonymous
3. 812 views
many people feel that a movie isn't a success if it doesn't force viewers to think about an important issue or idea. Others
1. 3 answers
2. asked by trinita
3. 811 views
These blanks I REALLLY need your help. Our teacher gave the teaching job to this other I think coop student who wants to be a
1. 5 answers
2. asked by Kristien
3. 809 views
The figure gives the speed v versus time t for a 0.189 kg object of radius 6.42 cm that rolls smoothly down a 39.5° ramp. What
1. 1 answer
2. asked by Micaiah
3. 808 views
Can somebody help me write my rough draft for a speech about how youth's and adult's should get the same penalty for crime?
1. 1 answer
2. asked by Michaela
3. 798 views
Decision making is a process by which several possibilities are considered and prioritized, resulting in a clear choice of one
1. 1 answer
2. asked by Ralph
3. 783 views
A net force of 5.75 * 103 N [180degree ] acts ona mass of 23.0 kg. If, while the force acts, the mass travels through a
1. 1 answer
2. asked by Ravi
3. 779 views
I thought number 4 on this list was incorrect but didn't know how to fully explain it here is the list that I have.Please look
1. 1 answer
2. asked by Linda
3. 777 views
order numbers least to greatest3/2,-1.2,0.8,_1/3
1. 1 answer
2. asked by j
3. 777 views
A 7.00 x 10 -5 H solenoid is constructed by wrapping 66 turns of wire around a cylinder with a cross-sectional area of 6.2 x
1. 0 answers
2. asked by Anonymous
3. 773 views
\sqrt{i} in polar form can be written as r(\cos \theta + i \sin \theta), where r is a real number and 0 \leq \theta \leq
1. 1 answer
2. asked by John
3. 765 views
A ship sails on a steady course bearing 106 degrees from A to B.If B is 76 nautical miles further east than A,find,to the
1. 2 answers
2. asked by Shane
3. 753 views
2NaOH + H2SO4 yields Na2SO4+2H2Ocalculate the molarity of H2SO4
1. 0 answers
2. asked by aisha
3. 746 views
Hi!!Well,I'm in tenth grade And I was wondering if there are any practice test websites for the 10th grade Test.. I believe Pct?
1. 9 answers
2. asked by Unknown
3. 742 views
A trigangular region of a community college parking lot was measured. The measure of the first angle of this triangle is doubled
1. 1 answer
2. asked by Tameka Graves
3. 733 views
Rex Corporation accepted a $5,500, 8.50%, 150-day note dated August 8 from Regis Company in settlement of a past bill. On
1. 0 answers
2. asked by leiliana
3. 732 views
The first term of a an infinite sequence is an equilateral triangle inscribed in a circle. The triangle has side n. Each new
1. 1 answer
2. asked by Moyer
3. 722 views
Hi! Having a lot of trouble with this one problem. The venn diagram problem is n(U)-n(B). I realize I did not post the venn
1. 1 answer
2. asked by Grace
3. 722 views
How do you diagram this sentence. Don't fall off the bench.
1. 1 answer
2. asked by math brain
3. 717 views
A circular coaster, with a diameter of 7 inches, is positioned on a white placemat. The placemat is a circle whose radius is
1. 1 answer
2. asked by syram
3. 713 views

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