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Questions Asked on April 14, 2013

A 57.0 kg diver dives from a height of 15.0 m. She reaches a speed of 14.0 m/s just before entering the water. (a) What was the
1. 2 answers
2. asked by monica
3. 4,950 views
A rotating uniform-density disk of radius 0.6 m is mounted in the vertical plane. The axle is held up by supports that are not
1. 5 answers
2. asked by Emily
3. 4,699 views
Completing the square: Which of the following is a solution x^2 + 14x + 112 = 0? If necessary round to the nearest hundredth.x=
1. 6 answers
2. asked by Jane
3. 3,703 views
A balloon leaves the ground 500 feet away from an observer and rises vertically at the rate of 140 feet per minute. At what rate
1. 2 answers
2. asked by Gabby
3. 3,514 views
The escape velocity from earth is 2.5 x10^4 miles per hour. What is this speed in m/s? (1 mile 1609 m)
1. 2 answers
2. asked by Nancy
3. 3,181 views
Find all solutions of the equation tan^5 x - 9tan x =0.The answer is Ak\pi where k is any integer, the constant A= ??.
1. 1 answer
2. asked by tyler
3. 2,935 views
Sara, a life-long ballet student, reports she feels like she does not want to participate in ballet anymore. She also states she
1. 3 answers
2. asked by CURIOUS GIRL
3. 2,861 views
2Al(s) + 6H+(aq) → 2Al3+(aq) + 3H2(g)For the above Al-H2 cell, what is the voltage if [Al3+] = 6.0461 M, [H+] = 6.1 M, and the
1. 1 answer
2. asked by Anonymous
3. 2,265 views
Find the standard deviation, Sigma, for the binomial distribution which has the stated values of n and p. Round your answer to
1. 2 answers
2. asked by todd
3. 2,262 views
Select the first five terms in the arithmetic sequence an = 6n, starting with n = 1.
1. 2 answers
2. asked by Anonymous
3. 2,259 views
1. A dad holds five coins in his hand. He tells his son that if he can guess the amount of money he is holding within 5%
1. 4 answers
2. asked by sucker 1
3. 2,126 views
An 8.0 Ω resistor and a 4.0 Ω resistor areconnected in series with a battery. The potential diﬀerence across the 4.0 Ω
1. 1 answer
2. asked by Sara
3. 2,050 views
A basketball player is balancing a spinning basketball on the tip of his finger. The angular velocity of the ball slows down
1. 1 answer
2. asked by anonymous
3. 2,012 views
the perimeter of a rectangular traffic sign is 120 inches Also, its length is 6 inches longer than its width
1. 1 answer
2. asked by carrie
3. 1,986 views
If alpha and beta are the zerosof the polynomial ax^2 + bx + c then evaluateA. (alpha)^2 / beta + (beta)^2 / alpha B. alpha^2
1. 3 answers
2. asked by Steve
3. 1,775 views
11-098-satellite_and_junk.jpgA spherical satellite of radius 4.6 m and mass M = 195 kg is originally moving with velocity
1. 0 answers
2. asked by Emily
3. 1,635 views
Let R1 and R2 be the remainderswhen polynomials x^3 + 2x^2 - 5ax - 7 and x^ 3 + ax^2 - 12 x + 6 are divided by ( x + 1 ) and ( x
1. 4 answers
2. asked by Steve
3. 1,584 views
Find all solutions of the equation 3sin^2 x -7sin x +2 = 0 in the interval [0,2pi).The answer is x_1= ?? and x_2= ?? with
1. 1 answer
2. asked by james
3. 1,568 views
given the points A(0,0), B(3,1) and C (1,4)what is the measure of angle ABC I plotted it on a gragh and got 1.46 degress. I am
1. 1 answer
2. asked by Rose
3. 1,550 views
The world population at the beginning of 1990 was 5.3 billion. Assume that the population continues to grow at the rate of
1. 1 answer
2. asked by Jacob
3. 1,549 views
An elevator has a mass of 500 kg. It may safely carry an additional mass of 1000kg and accelerate upward at 2m/s2. What is the
1. 1 answer
2. asked by becky
3. 1,526 views
A science teacher tells her class that their final project requires the student to measure a specific variable and determine the
1. 2 answers
2. asked by sucker 1
3. 1,517 views
a tree casts a shadow 29m long. at the same time the shadow cast b a 61cm tall statue is 82cm long. find the height of the tree.
1. 4 answers
2. asked by Christine
3. 1,484 views
each of the following sentences as periodic, cumulative, or inverted,and punctuate each correctly. Identify 1. Nowwhen I
1. 1 answer
2. asked by Anonymous
3. 1,408 views
A device consists of eight balls each of mass 0.4 kg attached to the ends of low-mass spokes of length 1.8 m, so the radius of
1. 0 answers
2. asked by Emily
3. 1,369 views
A)-Outspken proponent of women's rights and helped the below women organize the seneca falls convention.B)a prominent advocate
1. 6 answers
2. asked by joy
3. 1,264 views
PLEASE HELP!!!!1. How many millions of years ago did sharks first appear? (Make sure you are looking for animals that only have
1. 1 answer
2. asked by Kim
3. 1,173 views
Simplify and write the trigonometric expression in terms of sine and cosine:sin x + (cot x cos x) = 1/(f(x) f(x)= ???
1. 1 answer
2. asked by james
3. 1,163 views
ana wants to write a descriptive essay about a place tha is important to her1-which of these would best help ana prepare to
1. 1 answer
2. asked by jake plzzz
3. 1,126 views
What is the mean photon energy of.......?During the history of the Universe from the Big Bang to the present day, at some point
1. 2 answers
2. asked by centya
3. 1,122 views
The Mexican War -Again ,this war was not supported by Americans who lived where?my answer can you help me ? please
1. 1 answer
2. asked by joy
3. 1,095 views
A solid block of mass m2 = 8.3 kg, at rest on a horizontal frictionless surface, is connected to a relaxed spring. The other end
1. 1 answer
2. asked by Nicole
3. 1,091 views
Thirty years ago, the market for chicken was perfectly competitive. Then, Frank Perdue started marketing chicken under his own
1. 2 answers
2. asked by RAJA
3. 1,088 views
A 40 kg child stand on one end of a 70 kg canoe hat is 4 m in length. The boat is initially 3 m from a dock. The child notcies a
1. 5 answers
2. asked by y
3. 1,074 views
College students sometimes work as summer interns for private firms or for the government. Many of these positions pay very
1. 0 answers
2. asked by RAJA
3. 1,050 views
I have to write an Prospectus and Annotated Bibliography essay. But I don't know how to do that, can anyone explain what to do
1. 2 answers
2. asked by Colby
3. 1,022 views
1. Jenny's family are/is following her. She is taking a walk with her family.2. Yujin is watering plants with a watering can.
1. 1 answer
2. asked by rfvv
3. 1,016 views
There are two ways to protect your car from theft. The "club" makes it difficult for a car thief to take your car. Lojack makes
1. 0 answers
2. asked by RAJA
3. 1,012 views
form the quadratic equations whose roots are(A:5 and -1/3
1. 2 answers
2. asked by pressly.
3. 1,002 views
Find all solutions for the equation 3cos(x)=cot(x).When do I use +2kpi? Is it only when I'm suppose to "find all solutions"? I
1. 1 answer
2. asked by marie darling
3. 996 views
Trace the historical origin of social studies in Russia,USA and Brittin
1. 2 answers
2. asked by Enoch
3. 965 views
A 57.0 kg diver dives from a height of 15.0 m. She reaches a speed of 14.0 m/s just before entering the water. (a) What was the
1. 2 answers
2. asked by monica
3. 962 views
Cushman and Wakefield accounting that the average annual rent for office space in Tampa was $17.63 per square foot. A real
1. 1 answer
2. asked by chris
3. 953 views
NEED HELP ON THIS QUESTIONGlobalization can be understood in terms of shifts in a series of domains. Discuss in relation to i)
1. 0 answers
2. asked by lilly
3. 943 views
Ten ways in which floods can impact negatively on one's health?
1. 1 answer
2. asked by Anonymous
3. 940 views
a triangle drawn on a map has sides of lenghts 7.0 cm, 11 cm, and 15 cm. the shortest of the corresponding real-life distances
1. 4 answers
2. asked by Christine
3. 933 views
5u+2v=-153u+v=-8 Im not sure how to do this problem
1. 1 answer
2. asked by carrie
3. 921 views
What is the hydronium ion concentration in a solution 0.150M in HNO2 and 0.300M in NaNO2? Ka = 7.24E-4
1. 2 answers
2. asked by Alexis
3. 888 views
how do I carry out qualitative analysis on (NH4)2SO4.FESO4.6H20
1. 2 answers
2. asked by john manuel
3. 863 views
nico is saving his money for college he invests some money at 8% and $1300 less than that amount of 5% the investments produced
1. 1 answer
2. asked by rebecka
3. 858 views
Consider the RL circuit shown in the figure, where R = 5.0 Ω and L = 4.6 H. How much energy is stored in the inductor after the
1. 1 answer
2. asked by Valerie
3. 846 views
identify and describe three environmental health hazards that cause illhealth,crises and disasters
1. 2 answers
2. asked by nobuhle gwegwana
3. 823 views
A satellite circling the earth completes each orbit in 5.10 x 10^3 s. What is the gravitational field strength @ the location of
1. 0 answers
2. asked by Dal
3. 808 views
What is 8/9 as a percent, as a decimal, and a decimal rounded to two places?
1. 2 answers
2. asked by Emily
3. 792 views
According to an airline, a particular flight is on time 75% of the time. Suppose 140 flights are randomly selected and the
1. 0 answers
2. asked by MELISSA
3. 772 views
If it takes 84.2 min for the concentration of a reactant to drop to 20.0% of its initial value in a first-order reaction, what
1. 3 answers
2. asked by ted
3. 769 views
A box shaped like a rectangular prism has a height of 17 in. and a volume of 2720 in^3. The length is 4 inches greater than
1. 1 answer
2. asked by Jane
3. 757 views
Which of the following is a primary source?A. A recently published history book that cites diaries and letters from the 1880s B.
1. 4 answers
2. asked by pennfoster
3. 753 views
For each of the following determine whether or not it is an identity and prove your result.a. cos(x)sec(x)-sin^2(x)=cos^2(x) b.
1. 1 answer
2. asked by anonymous
3. 750 views
A) A small cork with an excess charge of +9.0x10^-6 is placed 0.13 m from another cork, which carries a charge of −3.2x10^-6.
1. 1 answer
2. asked by keely
3. 742 views
Imagine a firm that hires two types of workers: some with computer skills and some without. If technology advances so that
1. 0 answers
2. asked by RAJA
3. 721 views
Will someone please help me solve this problem.Simplify by factoring. �ã250 this is a radical sign in front of 250.
1. 2 answers
2. asked by Michael
3. 718 views
The rectangular has an area of 5400 cm^2. What is the value of w?5400 = (w)(2w - 30) 5400 = 2w^2 - 30 w 5400 = 2w(w - 15) Now I
1. 2 answers
2. asked by Jane
3. 716 views
Jo owns 150 shares of Delta General stock. She purchased the stock for $24 a share. She sold the stock for $30 per share. The
1. 1 answer
2. asked by morgan
3. 706 views
9-The colorful koi drift lazily in the pond,just below the water's surface. 10-These fish are a silent parade of reds and golds
1. 1 answer
2. asked by jake plzzzzzzzzzz help plzzzzzz
3. 692 views
Rushia Company has an available-for-sale investment in the 10%, 10-year bonds of Pear Co. The investment’s carrying value is
1. 0 answers
2. asked by Andrew
3. 690 views
Find the equation with the given properties. Express the equation in slope intercept form.Containing points p=(-4,-2) and
1. 1 answer
2. asked by Lauren
3. 686 views
hey guys please help me answer these questions.1. can a strong acid be diluted. explain in detail 2. can a weak acid be diluted.
1. 1 answer
2. asked by sean wilson
3. 679 views
Find all solutions of the equation 3sin^2 x -7sin x +2 = 0 in the interval [0,2\pi).The answer is x_1= ? and x_2= ? with
1. 0 answers
2. asked by tyler
3. 675 views
A model airplane 50 feet above the ground is flying away from an observer. Find the angle of elevation theta of the plane as a
1. 2 answers
2. asked by anonymous
3. 670 views
This time three questions - 1. If (x^2 - 1 ) is a factor of polynomial ax^4 + bx^3 + cx^2 + dx + e, show that a + c + e = b + d
1. 3 answers
2. asked by Jack
3. 659 views
how would you solve the mass of sucrose, C12H22O11, that is needed to make 550ml of a 0.25M solution?
1. 1 answer
2. asked by maggie
3. 658 views
An astronomer observes two galaxies, A and B, which have redshifts of:Galaxy A = 0.020 and Galaxy B = 0.010. Which galaxy is
1. 0 answers
2. asked by sam
3. 657 views
Determine the equilibrium constant for the following reaaction at 298K.SO3(g)+J2O(g)->H2SO4(l); delta G = -90.5
1. 2 answers
2. asked by sue
3. 645 views
a scale model of a building is 8in.by12in.the scale is 1in.by 15ft.what are the dimensions of the actual building
1. 2 answers
2. asked by Anonymous
3. 642 views
A spring is extended 4mm by an applied force of 2.0N.a)What is its spring constant? b)How much would it extend if a load of 150g
1. 1 answer
2. asked by Tangeni.
3. 640 views
a dam holds 13.5 megalitres of wate when full. If water flows from the dam at the rate of 5 litres per second, approximately how
1. 2 answers
2. asked by senorita
3. 632 views
Which of the following sets of Library of Congress call numbers is in the correct order?1. PA 203 .B252 1971, P201 .A251 1977,
1. 1 answer
2. asked by pennfoster
3. 615 views
Calculate the pH of a buffer solution that contains 0.60 M NaH2PO4, and 0.26 M Na2HPO4.
1. 1 answer
2. asked by Maddie
3. 615 views
In right triangle ABC, a = 52 ft and c = 63 ft. Which of the following trig ratios of angle B, would combine the given sides?
1. 1 answer
2. asked by msmith
3. 615 views
in the diagram below of quadrilateral abcd ac is a diagonal that biscets <bad and <bcd which statment can be used to prove that
1. 0 answers
2. asked by lexi
3. 614 views
This time three questions - 1. If (x^2 - 1 ) is a factor of polynomial ax^4 + bx^3 + cx^2 + dx + e, show that a + c + e = b + d
1. 2 answers
2. asked by Jack
3. 608 views
Suppose you had a slice of pizza that was cut from a 16” pizza. You measure the angle that it was cut at to be 0.6 radians.
1. 1 answer
2. asked by Lynn
3. 608 views
A 22.0 Ω, 11.0 Ω, and 6.00 Ω resistor areconnected in parallel to an emf source. A current of 6.00 A is in the 11.0 Ω
1. 1 answer
2. asked by Sara
3. 607 views
Simplify and write the trigonometric expression in terms of sine and cosine:sin x + (cot x)(cos x) = (1/f(x)) f(x)= ?
1. 1 answer
2. asked by tyler
3. 605 views
On an air track, a 403.0 glider moving to the right at 1.70 collides elastically with a 500.5 glider moving in the opposite
1. 1 answer
2. asked by Wesley
3. 591 views
1. A plane is headed at 122 degrees with an air speed of 350mph in a wind that is blowing from 38 degrees. Find the ground speed
1. 1 answer
2. asked by sarah
3. 586 views
how many ml of a .1M HCl are required to react completely with 1 gm mixture of Na2CO3 ?
1. 1 answer
2. asked by swati
3. 578 views
Simplify and write the trigonometric expression in terms of sine and cosine:((2+tan^2 x)(sec^2 x))-1 = (f(x))^2 f(x)= ???
1. 3 answers
2. asked by tyler
3. 576 views
Consider the following circuit. We have R_1=7 Ohms, R_2=17 Ohms, R_3=11 Ohms, V=9 Volts, L=0.09 H.At t=0 the switch is closed.
1. 3 answers
2. asked by Phy
3. 573 views
the perimeter of a rectangular field is 140m. if the length is increased by 15m and the breadth is decreased by 5m, the length
1. 2 answers
2. asked by Anonymous
3. 564 views
I'm having a little trouble determining oxidation numbers for elements in a redox reactionKMnO4+HCl--> MnCl2+Cl2+H2O+KCl So far
1. 4 answers
2. asked by K
3. 563 views
should religious phares be taken out of money for a reasearch paper
1. 1 answer
2. asked by amber
3. 558 views
Define resistivity and state its units
1. 1 answer
2. asked by Tobi
3. 556 views
Economists often view life cycle variation in income as one form of transitory variation in income around people's lifetime or
1. 0 answers
2. asked by RAJA
3. 555 views
1The people i love the best2jump into work head first 3without dallying in the shadows 4and swim off with sure strokes aost out
1. 3 answers
2. asked by jake plzzz
3. 552 views
Find the distance between the points with polar coordinates (3, 120°) and (0.5, 49°)? Is the answer 2.88?
1. 1 answer
2. asked by Athena
3. 547 views
When 25.0 g of Zn reacts,how many L of H2 are formed at STP?
1. 1 answer
2. asked by Red
3. 547 views
How the Swahili language came being
1. 2 answers
2. asked by sethabile
3. 539 views
Convert to a rectangular equation by eliminating the parameter:x=(1/t) y=2t+3
1. 1 answer
2. asked by Molly
3. 535 views

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