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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. 4,965 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. 4,713 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. 3,717 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. 3,533 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. 3,190 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. 2,958 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. 2,872 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. 2,298 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. 2,280 views
Select the first five terms in the arithmetic sequence an = 6n, starting with n = 1.
1. 2 answers
2. asked by Anonymous
3. 2,266 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. 2,146 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. 2,063 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. 2,023 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. 1,995 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. 1,797 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. 1,651 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. 1,598 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. 1,581 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. 1,572 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. 1,567 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. 1,543 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. 1,532 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. 1,502 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. 1,425 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. 1,390 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. 1,277 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. 1,197 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. 1,179 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. 1,142 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. 1,140 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. 1,107 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. 1,105 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. 1,098 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. 1,087 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. 1,058 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. 1,033 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. 1,031 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. 1,020 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. 1,012 views
form the quadratic equations whose roots are(A:5 and -1/3
1. 2 answers
2. asked by pressly.
3. 1,011 views
Trace the historical origin of social studies in Russia,USA and Brittin
1. 2 answers
2. asked by Enoch
3. 979 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. 974 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. 969 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. 960 views
Ten ways in which floods can impact negatively on one's health?
1. 1 answer
2. asked by Anonymous
3. 951 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. 949 views
5u+2v=-153u+v=-8 Im not sure how to do this problem
1. 1 answer
2. asked by carrie
3. 934 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. 897 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. 877 views
how do I carry out qualitative analysis on (NH4)2SO4.FESO4.6H20
1. 2 answers
2. asked by john manuel
3. 877 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. 863 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. 831 views
identify and describe three environmental health hazards that cause illhealth,crises and disasters
1. 2 answers
2. asked by nobuhle gwegwana
3. 831 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. 801 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. 784 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. 781 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. 774 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. 773 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. 767 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. 766 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. 733 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. 729 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. 727 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. 727 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. 707 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. 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. 702 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. 692 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. 688 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. 686 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. 673 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. 668 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. 666 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. 663 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. 651 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. 648 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. 647 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. 642 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. 628 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. 624 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. 623 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. 623 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. 621 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. 620 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. 617 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. 607 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. 600 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. 592 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. 590 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. 587 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. 585 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. 579 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. 569 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. 567 views
should religious phares be taken out of money for a reasearch paper
1. 1 answer
2. asked by amber
3. 567 views
Define resistivity and state its units
1. 1 answer
2. asked by Tobi
3. 564 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. 558 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. 553 views
Convert to a rectangular equation by eliminating the parameter:x=(1/t) y=2t+3
1. 1 answer
2. asked by Molly
3. 546 views
How the Swahili language came being
1. 2 answers
2. asked by sethabile
3. 545 views

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