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Questions Asked on April 25, 2013

When the temperature is 68°F, the speed of sound in air is approximately 343 meters per second. Approximately how many
1. 37 answers
2. asked by Chris
3. 12,615 views
In the right triangle shown below, the length of AB is 8 units, ¡ÏA measures 60¡ã, sin 60¡ã ¡Ö 0.866,cos 60¡ã ¡Ö
1. 3 answers
2. asked by gt
3. 4,639 views
The sum of three consecutive odd numbers is 39. What are the smallest of these numbers?
1. 3 answers
2. asked by Amy
3. 4,509 views
the amount of K2Cr2O7 required to prepare 100ml of its 0.05N solution
1. 4 answers
2. asked by saba anjum
3. 4,064 views
One pipe can fill a tank in 20 minutes, whileanother takes 30 minutes to fill the same tank. How long would it take the two
1. 1 answer
2. asked by jj
3. 3,662 views
I have a complex figure like a U shape.I understand the formula for this is l x w = a Can you show me the steps? 31m is parael
1. 7 answers
2. asked by Max
3. 3,593 views
A fluid moves in a steady flow manner between two sections ina flow line. At section 1: A1=10ft2, v1=100ft/min, specificvolume1=
1. 1 answer
2. asked by olbap
3. 3,403 views
17. Potential due to a point charge: What is the electric potential 17.0 cm from a 3.50 μC point charge?
1. 4 answers
2. asked by Lex
3. 3,077 views
The lowest frequency in the audible range is 20Hz.A)What is the length of the shortest open-open tube needed to produce this
1. 1 answer
2. asked by Zach Neal
3. 2,727 views
a student drop a rubber ball from a height of 8 feet . Each time the ball hits the ground, it bounces to 75% of its previous
1. 1 answer
2. asked by long nguyen
3. 2,429 views
2.Identify the sequence as arithmetic, geometric, or neither. 1.6, 0.8, 0.4, 0.2, . . . (1 point) arithmetic geometric neither
1. 2 answers
2. asked by Delilah
3. 2,051 views
how many moles of gold are there in 1.00 L of seawater if there are 1.50^17 atoms of gold in the sample?
1. 1 answer
2. asked by Tina
3. 2,006 views
For the following three vectors, what is 3C·(2A multiplied by Bvec)?A = 2.00ihat + 3.00jhat - 6.00khat Bvec = -3.00ihat +
1. 1 answer
2. asked by tae
3. 1,845 views
A company manufactures widgets. The daily marginal cost to produce x widgets is found to beC'(x) = 0.000009x^2 - 0.009x + 8
1. 2 answers
2. asked by Roland
3. 1,740 views
A 45 g block of aluminum initially at 28.0° C absorbs 548 J of heat. What is the final temperatureof the aluminum? The specific
1. 2 answers
2. asked by University of Louisiana at Lafayette
3. 1,644 views
A hot-air balloon is rising upwards at a constant velocity of 5m.s . When the balloon is 100m above the ground , a sandbag is
1. 2 answers
2. asked by Lesiba
3. 1,592 views
A proton moves perpendicularly to a magnetic ﬁeld that has a magnitude of 1.22×10−2T. The charge on a proton is
1. 1 answer
2. asked by Anonymous
3. 1,562 views
A video games shop is analyzing its sales performance using matrices. Matrix A contains the unit sales data for each product
1. 1 answer
2. asked by Chris
3. 1,511 views
12. Tell what the following people will do tomorrow by changing the verb in the following statement to the future tense. Write
1. 5 answers
2. asked by Frank
3. 1,508 views
9 subtracted from 2 less than the product of 4 and 8
1. 3 answers
2. asked by khusbu thapa
3. 1,367 views
A compound was found to be composed of the following amounts of elements: 20.00% wt% C, 26.64wt% O, 46.65 wt%N, and 6.71wt%H. A
1. 1 answer
2. asked by lucy
3. 1,354 views
Environmental Concerns: The spread of oil leaking from a tanker is in the shape of a circle. If the radius r (in feet) of the
1. 1 answer
2. asked by Matt
3. 1,265 views
Calculate the molar solubility of silver chloride (AgCl) in:a-deionized water and b-.20M NaCl solution Given Ksp=1.6*10^-10
1. 1 answer
2. asked by JO
3. 1,249 views
A certain type of laser emits light that has a frequency of 4.7 1014 Hz. The light, however, occurs as a series of short pulses,
1. 0 answers
2. asked by Anonymous
3. 1,243 views
An electron in the c level of a mercury atom returns to the ground state. Which photon energy could not be emitted by the atom
1. 1 answer
2. asked by Shannon
3. 1,230 views
A textbook store sold a combined total of 462 biology and chemistry textbooks in a week. The number of biology textbooks sold
1. 1 answer
2. asked by Anonymous
3. 1,227 views
Balance the following redox reaction and identify the oxidizing and reducing agentsA- Fe2+(aq) + Cr2072-(aq) -->Fe3+(aq) +
1. 3 answers
2. asked by JO
3. 1,225 views
A particle moves through an xyz coordinate system while a force acts on it. When the particle has the position vector vector r =
1. 1 answer
2. asked by tae
3. 1,219 views
Making use of the following terms, write a fictitious medical report of about two paragraphs describing a dermatologic condition
1. 1 answer
2. asked by Victoria
3. 1,214 views
0.356 grams of an unknown metal reacts with oxygen to form 452 milligrams of the metal oxide. Identify the metal
1. 1 answer
2. asked by Kamal
3. 1,200 views
1) A company wishes to issues bonds with a coupon rate of 5%. The company wishes to raise 100 million dollars net of commissions
1. 0 answers
2. asked by dpwnc
3. 1,195 views
A pulsar is a stellar object that emits light in short bursts. Suppose a pulsar with a speed of 0.975c approaches Earth, and a
1. 1 answer
2. asked by Kim
3. 1,181 views
Calculate the concentration of bromocresol green (BG) indicatorIt says that Molar absorptivity = Absorbance at a wavelength/
1. 1 answer
2. asked by Catherine
3. 1,171 views
If ms smith class read for 450hrs this month. Ms Brown class read two-thirds the number of hrs read by ms smith class. Ms James
1. 1 answer
2. asked by marsha
3. 1,160 views
A sailor sights both the bottom and top of a lighthouse that is 20 and m high and which stands on the edge of a cliff. The two
1. 1 answer
2. asked by Kayla
3. 1,159 views
Balance the following redox reaction and identify the oxidizing and reducing agentsA- Fe2+(aq) + Cr2072-(aq) -->Fe3+(aq) +
1. 0 answers
2. asked by jo
3. 1,129 views
name 5 ways in which the human or enviromental problem impact on the community about teenage pregnancy
1. 1 answer
2. asked by ndivhuwo
3. 1,127 views
******I WILL GIVE MY ANSWERS AFTER I POST THE QUESTIONS******1. Momentum is a measure of ____. how hard it is to stop an object
1. 1 answer
2. asked by Jman
3. 1,111 views
Factors that causes ill health,accidents,crises,and disaster
1. 2 answers
2. asked by Muthala gudani
3. 1,083 views
A lot is in the shape of a trapezoid. The sum of the bases is 180 feet. If the area of the lot is 8,100 square feet, what is the
1. 1 answer
2. asked by Joe
3. 1,074 views
In one of Michelson's experiments, a beam from a revolving mirror traveled 12 km to a stationary mirror. How long a time
1. 0 answers
2. asked by tasha
3. 1,043 views
Triangle XYZ with vertices X(3,-1) Y(7,-3)Z(3,-5) undergoes an enlargement represented by the mapping:x
1. 0 answers
2. asked by lindsay
3. 1,034 views
5 ways in which human or environmental problem impacts the community and explanation
1. 3 answers
2. asked by Bongekile
3. 1,020 views
if you dissolve 350 g of K(2)CrO(4)in 2.4 kg of water, what is the molality of the solution?
1. 1 answer
2. asked by crystal
3. 1,012 views
Identify human factor that causes ill health,accidents,crises and disaster within south africa
1. 1 answer
2. asked by Adolph
3. 1,012 views
To combat wasteful habits, we often speak of “conserving energy,” by which we mean turning off lights, heating or cooling
1. 0 answers
2. asked by Chris
3. 1,010 views
Find a polynomial p(x) with real coefficients having the given zeros.6,-14, and 4+3i
1. 2 answers
2. asked by :D
3. 1,004 views
In grandpa’s time automobiles were previously manufactured to be as rigid as possible, whereas autos are now designed to
1. 0 answers
2. asked by Chris
3. 997 views
What is the centripetal force of an object undergoing uniform circular motion when its radius is doubled and its speed remains
1. 2 answers
2. asked by Anonymous
3. 993 views
One more...Faye wants to know how tall her school building is. On a sunny day, she measures the shadow of the building to be 6
1. 2 answers
2. asked by Amy
3. 977 views
If sin theta=24 divide by 25 and theta is acute..make use of a diagram to determine the value of 7(tanø-secø)
1. 1 answer
2. asked by Thembisile
3. 969 views
Describe the life style disease/behaviour and explain 5 or more factors that contribute to the disease of substance abuse of
1. 2 answers
2. asked by Selby
3. 967 views
identify and describe 3 environmental health hazards that cause ill health,crises,and or disasters within your community or any
1. 1 answer
2. asked by mpho
3. 963 views
A bag contains 5 red balls and 7 green balls . A ball is picked at random , its color is noted and it is given out . The bag is
1. 1 answer
2. asked by Natasha
3. 959 views
A film alliance used a random sample of 50 U.S. citizens to estimate that the typical American spent 78 hours watching videos
1. 1 answer
2. asked by Anonymous
3. 942 views
What is a complex sentence for the word chagrin
1. 1 answer
2. asked by Anonymous
3. 928 views
The indicated endpoint of an acid-base titration seldom occurs at a ph of 7. what determines the ph of the endpoint??
1. 1 answer
2. asked by David
3. 923 views
The duration of time it takes General Motors to build a car is normally distributed with a mean of 31 hours and a standard
1. 2 answers
2. asked by kevin
3. 915 views
A sample of molybdenum (Mo) is analyzed by x-ray diffraction using NiKα radiation. Calculate the value of theangle at which the
1. 2 answers
2. asked by Anonymous
3. 912 views
A mass of a copper oxide weighed 10.00grams. The reaction was run and the amount of just copper obtained was 8.88grams. What is
1. 1 answer
2. asked by Samantha
3. 910 views
If d1 = 7 ihat - 2 jhat + 4 khat and d2 = -5 ihat + 2 jhat - khat, then what is (d1 + d2)·(d1 multiplied by 6 d2)?
1. 0 answers
2. asked by tae
3. 905 views
I invested $3,000, part at 2% and the rest at 5% simple interest. After 1 year, I earned a total of $117 in interest. How much
1. 1 answer
2. asked by Dan
3. 904 views
A rectangular plot is bounded at the back by a river. No fencing is needed along the river and there is to be an opening in
1. 1 answer
2. asked by natasha
3. 891 views
Does this sentence flow? Word does not like "can be recognized" it says it sounds passive.The logo design is created for
1. 1 answer
2. asked by Journey
3. 880 views
A gardener is installing a circular garden. The radius of the circle 28 feet. He needs to know the circumference in order to buy
1. 1 answer
2. asked by Joe
3. 867 views
calculate the hydroxide ion concentration in a solution of almond extract PH.3.8.state if almond is basic or acid
1. 1 answer
2. asked by demi
3. 848 views
A building casts a shadow that is 8ft long. How tall is the building?
1. 2 answers
2. asked by Debra
3. 827 views
There is a mathematical relationship between an airplane’s weight x and the runway length required at takeoff. For certain
1. 0 answers
2. asked by Tamie
3. 821 views
If you flip a coin 9 times and get 9 heads the probability of getting a head on the next toss would be 1/2. Explain how it is
1. 1 answer
2. asked by Angela
3. 804 views
A heat engine absorbs 848 J of energy percycle from a high-temperature source. The engine does 417 J of work during each cycle,
1. 1 answer
2. asked by Anonymous
3. 804 views
What is 0.0185 as a fraction and a percent
1. 1 answer
2. asked by Piper
3. 801 views
On the sidewalk the distance from the dormitory to the cafeteria is 400 meters. By cutting across the lawn, the walking distance
1. 1 answer
2. asked by danielle
3. 786 views
To treat a burn on your hand, you decide to place an ice cube on the burned skin. The mass of the ice cube is 16.0 g, and its
1. 1 answer
2. asked by Audre
3. 785 views
What is the pH of a solution of 40.0 ml of 0.800 M HCl titrated with 4.00 ml of 1.00 M Hydroxyl amine?
1. 1 answer
2. asked by Sara
3. 783 views
can you give me 1 journal article that deals with pharmacoeconomics study?
1. 9 answers
2. asked by PLEASSSEEE HELP MEE
3. 782 views
In the first three days of its launch, the Galaxy Music Store sold 14 CDs of album x, 8 of album y, and 6 of album z through
1. 1 answer
2. asked by Chris
3. 778 views
find the theoretical probability of each outcome.1. randomly choosing a day of the week and it is a weekend 4. randomly choosing
1. 1 answer
2. asked by s
3. 778 views
at the pittsburch zoo, children ride a train for 25 cents, adults pay $1 and seniors pay .75. on a given day, 1400 passengers
1. 1 answer
2. asked by JT
3. 773 views
Find the limit as x approaches infinity of (lnx)^(1/x). This unit is on L'Hopital's rule. I know that the answer is 1, I just
1. 1 answer
2. asked by Hannah
3. 759 views
What would be the path of the Moon if somehow all gravitational forces on it vanished to zero?Please help; need an original
1. 3 answers
2. asked by Chris
3. 757 views
Maximus Dog Company purchased a new supply van on January 1, 2011, for $35,000. The van is estimated to last for five years and
1. 0 answers
2. asked by Anonymous
3. 754 views
In the right triangle shown below, the length of AB is 8 units, ¡ÏA measures 60¡ã, sin 60¡ã ¡Ö 0.866,cos 60¡ã ¡Ö
1. 0 answers
2. asked by gt
3. 745 views
A school is running a raffle. There are 100 tickets, of which 3 are winners. You can assume that tickets are sold by drawing at
1. 1 answer
2. asked by XYZ
3. 740 views
When a cannon with a longer barrel is fired, the force of expanding gases acts on the cannonball for a longer distance. What
1. 0 answers
2. asked by Chris
3. 737 views
To test H0:  = 80 versus H1:  < 80. a simple random sample of size n = 22 is obtained from a population that is known to
1. 1 answer
2. asked by Ted
3. 723 views
What is the angular momentum (in kilogram-meter^2/second) of a 500.0 g ball rotating on the end of a string in a circle of
1. 2 answers
2. asked by BG
3. 719 views
the french club is sponsering a bake sale. they spent $77 in supplies. if their goal is to raise at least $140 how many pastries
1. 0 answers
2. asked by hips
3. 714 views
A park ranger wants to shoot a monkey hanging from a branch of a tree with a tranquilizing dart. The ranger aims directly at the
1. 0 answers
2. asked by Chris
3. 714 views
The fifth grade marching band includes boys and girls.There are 28 boys in the marching band. The 28 boys are 7/10 of the
1. 2 answers
2. asked by Anonymous
3. 710 views
The bases of a triangular right prism are apart. find the volume and the total surface area of the prism if one side of the
1. 0 answers
2. asked by Allen
3. 710 views
10 ways in which the human or environmental problem impacts on the community about global warming
1. 1 answer
2. asked by Phuti
3. 706 views
E3-30A. Account for depreciation expense. (LO 1, 3). Maximus Dog Company purchased a newsupply van on January 1, 2011, for
1. 0 answers
2. asked by Anonymous
3. 700 views
Eva play near other children with similr material but doesn't try to influence their behavior , she 's involved in A. nonsocial
1. 3 answers
2. asked by Alston
3. 699 views
Thorium-232 undergoes alpha decay and has a half-life of 1.4 * 10^10 years. How long will it take for a 1.00mg sample of
1. 1 answer
2. asked by John
3. 695 views
N-type silicon (Si) has been produced by doping with phosphorus (P). The charge-carrier population based on electrical
1. 6 answers
2. asked by Alan
3. 692 views
A drawbridge with a weight of 5000 N is supported by a hinge and rope and is in static equilibrium. The length of the drawbridge
1. 0 answers
2. asked by Mike
3. 676 views
Angela measured 2 trees in her front yard.Tree A is 5m. Tree B is 200 cm taller than tree A. How tall is tree B
1. 1 answer
2. asked by Lexi
3. 672 views
Two identical superconducting rings are brought very close to each other (see the image below). The currents in the rings are
1. 1 answer
2. asked by er
3. 672 views
At the instant a race began, a 74.0 kg sprinter exerted a force of 850 N on the starting block at a 23.0 degree angle with
1. 0 answers
2. asked by naja
3. 660 views
a potato chip manufacturer has been accused of shortchanging their customers with 10 ouce of bags potato chips. a sample of 50
1. 1 answer
2. asked by kiki
3. 660 views

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