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Questions Asked on February 8, 2015

A 0.25 kg particle moves along an x axis according to x(t) = - 10 + 3 t + 2 t2 - 5 t3, with x in meters and t in seconds. In
1. 1 answer
2. asked by Anonymous
3. 612 views
If 7.63 g of CuNO3 is dissolved in water to make a 0.180 M solution, what is the volume of the solution?
1. 2 answers
2. asked by Felicia Fancybottom
3. 662 views
17th-Century collectors trying to fashion a “Wunderkammer” (cabinet of curiosities) might potentially have been interested
1. 3 answers
2. asked by Sarah
3. 594 views
a child mass m slides down a slide 5 m high. the child speed at the bottom of the slide is 3 meters per second. what is the
1. 1 answer
2. asked by Dan
3. 1,586 views
Could this be a good thesis? Could you please help me? In today's society many middle class people argue why they can not build
1. 2 answers
2. asked by antonio
3. 513 views
Calculate the change in free energy when you drop 4.70 g of calcium metal into a beaker containing excess water so that
1. 1 answer
2. asked by danny
3. 443 views
Find the volume of the solid whose base is the circle x^2+y^2=25 and the cross sections perpendicular to the x-axis are
1. 1 answer
2. asked by Mwe
3. 4,441 views
Are these two the same? Which one of those is the correct form?Sn = n ---[3n-1] 2 Sn = 3n^2 +n ------- 2
1. 1 answer
2. asked by Lucina
3. 472 views
Consider a regular tetrahedron whose face is an equilateral triangle of side 7.Find the area of the horizontal cross section A
1. 1 answer
2. asked by Mwe
3. 5,643 views
White phosphorus (P4) was used for a long time in military incendiary bombs and ordnances. White phosphorus reacts with oxygen
1. 1 answer
2. asked by danny
3. 617 views
Analyze the prompt :In the following passage from The Scarlet Letter, the narrator describes Hester Prynne in her isolation from
1. 2 answers
2. asked by Amy
3. 1,348 views
The common external tangents to the graphs for (x+1)^2+y^2=1 and (x-2)^2+y^2=4 are drawn. Find the slope of the tangent line
1. 1 answer
2. asked by Anon
3. 591 views
7.Calculate the volume of a substance that has a density of 5.47 g/mL and a mass of 8.065 g.
1. 1 answer
2. asked by ako
3. 547 views
In today's society, many middle class people argue that they cannot build wealth because of wrong choices , over spending, own a
1. 3 answers
2. asked by antonio
3. 561 views
The velocity-versus-time graph is shown for a particle moving along the x-axis. Its initial position is x0 = 1.8m at t0 =0s.Part
1. 2 answers
2. asked by anonymous
3. 3,360 views
Assume no air friction and that the acceleration due to gravity is 10 meters/sec^2. A ball is moving horizontally at a rate of 5
1. 1 answer
2. asked by Anon
3. 533 views
Can someone help me answer this question, so I would know what to do for a question like this next time?Thank you! A box
1. 1 answer
2. asked by Anonymous
3. 579 views
There are 5 quadratics below. Four of them have two distinct roots each. The other has only one distinct root; find the value of
1. 2 answers
2. asked by Juliet
3. 837 views
There are two sign posts A and B on the edge of the road. A is 400 m to the west of b. A tree is on a bearing of 60 degree from
1. 1 answer
2. asked by John
3. 570 views
The a hollow cylinder. The internal and external radii are estimated to be 6 cm and 8 cm respectively, to the nearest whole
1. 0 answers
2. asked by Kudu
3. 549 views
Calculate the change in Gibb’s free energy when 1.63 moles of sodium metal react with excess chlorine gas to form sodium
1. 1 answer
2. asked by danny
3. 552 views
How much work must be done to stop a 1070 kg car traveling at 111 km/h?
1. 1 answer
2. asked by mathew
3. 475 views
A solution of 0.200M NaOH (14.0 mL) is mixed with 42.4 mL of 0.170M HNO3. Assuming the final volume is the sum of the initial
1. 1 answer
2. asked by Jessica
3. 518 views
A solution of 0.200M NaOH (14.0 mL) is mixed with 42.4 mL of 0.170M HNO3. Assuming the final volume is the sum of the initial
1. 1 answer
2. asked by Jessica
3. 527 views
If the graph is decreasing from left to right, which of the following equations may be represented by it.1. y = 2^x + 1 2. y =
1. 2 answers
2. asked by Annika
3. 420 views
which is the best location for farming?a. east of the jordan river b. central syria c. southern israel ***** d. the coast of
1. 6 answers
2. asked by Check Answer
3. 629 views
Calculate the mass of ethanol that must be burnt to increase the temperature of 150g of water by 75 degrees celsius, if exactly
1. 1 answer
2. asked by Isabella
3. 845 views
A baseball (m = 145 g) traveling 20 m/s moves a fielder's glove backward 25 cm when the ball is caught. What was the average
1. 0 answers
2. asked by mathew
3. 886 views
at STP , what is the volume of 7.08 mole of Nitrogen gas ?
1. 1 answer
2. asked by jade
3. 1,035 views
If x+2y=4 and xy=-8, what is the value of x^2+4y^2.I have been thinking about this and can't make heads or tails of it.
1. 1 answer
2. asked by Bethany
3. 356 views
For a one step reaction, the activation energy for the forward reaction is 40.0 kJ mol-1, and the enthalpy of reaction is -20.0
1. 1 answer
2. asked by Anonymous
3. 2,894 views
Isosceles trapezoid JKLM has legs Jk and LM and bases KL and JM. Jk=8X+5 KL=4X+1 LM=10x+4 and MJ=18X+3, area of JKLM?
1. 2 answers
2. asked by al
3. 2,524 views
What mass of sucrose (C12H22O11) should be combined with 477g of water to make a solution with an osmotic pressure of 8.15atm at
1. 1 answer
2. asked by chemstud
3. 1,569 views
compare 2 fractions with different numerators and denominators
1. 1 answer
2. asked by tony
3. 437 views
A 66-kg baseball player slides into third base. He starts his slide at a speed of 4.3 m/s and his speed is zero just as he
1. 2 answers
2. asked by mathew
3. 9,137 views
I don't really know where to start on the problem. Would I use V = k(q/r)? But what would I do afterwards.Much explanation on
1. 1 answer
2. asked by Aria
3. 618 views
Suppose we want to estimate the average number of purchases in a given hour in a local convenience store. Using this example
1. 0 answers
2. asked by slomo
3. 680 views
Joes test score was 450(1 standard deviation below the population mean550) A good guess for Joes test score is
1. 1 answer
2. asked by ben
3. 408 views
A 25.0 mL sample of drinking water suspected to contain lead(II) ions is treated with excess 0.800 M sodium chloride. A
1. 1 answer
2. asked by Nguyen
3. 688 views
Can someone show me and explain a step by step process how to do this problem? Thanks1) Two equal but opposite charges re
1. 1 answer
2. asked by Lyn
3. 869 views
3. Calculate the magnitude of the force required to cause an anterior dislocation of the glenohumeral joint given that he force
1. 0 answers
2. asked by kkuh
3. 460 views
I'm trying to work on this practice question But got confuse on this question:find the value of P = Q ( 1 - 1.03^-20 / 0.03)
1. 2 answers
2. asked by Luc
3. 487 views
(ii) Calculate the direction and magnitude of the joint force at the mid-point between the fourth and fifth lumbar vertebrae by
1. 0 answers
2. asked by kkuh
3. 640 views
TWO PARTEllen is playing a video game in which she captures butterflies. There are 3 butterflies onscreen, but the number of
1. 15 answers
2. asked by Kara
3. 5,653 views
Show how to write and evaluate an expression to represent and solve this problem: Jeff and his friend each text four classmates
1. 1 answer
2. asked by kyle
3. 610 views
A box with an open top is to be constructed by cutting equal-sized squares out of the corners of a 18 inch by 30 inch piece of
1. 3 answers
2. asked by moshie
3. 1,485 views
In the lab, a relativistic proton has a momentum of 1.00 × 10-19 kg · m/s and a rest energy of 0.150 nJ. What is the speed of
1. 0 answers
2. asked by Anonymous
3. 686 views
The shadow of an electric pole is 5 m. long when thr angle of elevation of the seen is 60 degrees. Find the length of the shadow
1. 1 answer
2. asked by Res
3. 567 views
find the period, amplitude,zeros, extreme points at maximum and minimum of the given function:1.y = sin( -2x) 2.y = 4 sin( 5x)
1. 1 answer
2. asked by rhine
3. 791 views
A. 16p^2-4q^2/(6p^2-7pq+2q^2) *6p^2-13pq+6q^2/(4p^2-4pq-3q^2)B. a^2+a-2/(6a-12) / a+2/(a^2-3a+2) C.3/(x-3) -x^2/(6+x-x^2)
1. 1 answer
2. asked by Lesley
3. 399 views
A pyramid V-ABCD is cut from a cube of edge 12 in.,as shown in the figure. Thevertex V is the midpoint of an upper edge of the
1. 5 answers
2. asked by Rosebymae
3. 2,352 views
Which careers can i persue with those subjects?
1. 2 answers
2. asked by Kutullo
3. 535 views
simplify: ____1____ _____1______ ¡Ì2¡Ì3 ¡Ì2 ¡Ì4 ¡Ì3
1. 1 answer
2. asked by rutvik
3. 357 views
Balance redox reaction.Fe(s) + O2(g) + H2O(l)-->Fe2+(aq) +OH-
1. 1 answer
2. asked by michelle
3. 1,005 views
If there is a constant towing force of 1.5 kN, how long would it take a tow truck to tow a 1400 kg car from rest to 52 km/h?(Ass
1. 1 answer
2. asked by nesh
3. 534 views
Words:curtail devastate Disgress Incentive Incorporate Indispensable Intermittent Rigor Squander Succumb (1,2)Duane feels he
1. 1 answer
2. asked by Celine
3. 1,223 views
Alyssa's shelves hold 31 books each. How many shelves will Alyssa need if Alyssa has 248 books?
1. 1 answer
2. asked by haley
3. 253 views
Correct punctuation for Boston, MassachusettsPlayed an important role in American history and politics.
1. 1 answer
2. asked by Diane
3. 2,326 views
Value Rent-A-Car rental a luxury car at a daily rate of $42.15 plus 50 cents per mile. A business person is allotted $130 for
1. 3 answers
2. asked by B
3. 882 views
A nail is driven into a board with an initial kinetic energy of 150 j. If the potential energy before and after the event is the
1. 1 answer
2. asked by nireen
3. 2,080 views
A uniform rod of weight 5N and lenght 1m is pivoted at a point of 20 cm from one of its ends. A weight is hung from the other
1. 1 answer
2. asked by Kiwiwi
3. 1,685 views
Which factors has revolutionised world history by patrick manning ?.I have written about world war and industrial but am not
1. 2 answers
2. asked by comeford
3. 580 views
Yalda has six $5 notes, ten $10 notes and four $20 notes in her purse. If she takes out one note, what is the probability that
1. 1 answer
2. asked by Arzam
3. 752 views
Rewrite each line of poem by putting capital letters and punctuation marks where they belong.I have tried to get this but i'm
1. 1 answer
2. asked by Gabe
3. 819 views
On January 31, a count of ending inventory was completed, and 7,200 units were on hand. Using the periodic inventory system,
1. 0 answers
2. asked by Theresa
3. 542 views
an electric water pump raises 500 kg of water through a vertical height of 25 m in 50 sec. Calculate the power of electric pump.
1. 1 answer
2. asked by Ayantika
3. 1,074 views
May this is it ; Storm over ocean torrents of rein dropping downward and theirs no sign that its stopping anytime soon/ face and
1. 1 answer
2. asked by Gabe
3. 2,197 views
Find the number of negative integers greater than -500 that are divisible by 33.Also find their sum. How do I set up this
1. 1 answer
2. asked by anon
3. 692 views
Among the integers from 1 to 10, 000, 000, 000 which are there more of: Those inwhich the digit 1 occurs or those in which it
1. 2 answers
2. asked by Ralph
3. 426 views
Two angles of a quadrilateral measure 130° and 20°. The other two angles are in a ratio of 5:16. What are the measures of
1. 7 answers
2. asked by theodore jabooa
3. 4,692 views
kellys dog eats 1 2/3 bones in 10 days. How many bones will he eat in 18 days?
1. 3 answers
2. asked by Johnny
3. 1,404 views
find the number of revolutions taken by the wheel of a truck to cover a distance of 78.5 km if the diameter of the wheel is 1m
1. 2 answers
2. asked by shehzad
3. 1,078 views
Prove that it is impossible to tile an 8 × 8 checkerboard with 1 × 3 tiles
1. 1 answer
2. asked by Ralph
3. 406 views
find the following lonear equqtion by mtrix method12p+4q+17r+11s=5 14p+8q+9r+4s=8 3p+7q+2r+5s=12 5p+12q+9r+7s=7
1. 1 answer
2. asked by saloni
3. 430 views
what accounts are affected when you invest in additional equipment for the business?
1. 0 answers
2. asked by marie
3. 412 views
Two towns P and Q are 400 km apar. A bus left for P and Q. It stopped at Q for one hour and then started the return to P. one
1. 0 answers
2. asked by kudu
3. 457 views
A bag contains 5 red and 4 green apples. Michael takes one apple at random from the bag. His sister Ashley then takes an apple
1. 1 answer
2. asked by Anna
3. 1,306 views
This is trigonometry:A tree's height is unknown so we have to solve for the height of the tree. The tree casts a 11m shadow. And
1. 2 answers
2. asked by Izzy
3. 724 views
How do I show the work to find the fraction with the greatest value?7/10, 1/5, 9/10 5/6, 7/12, 7/10
1. 2 answers
2. $fraction with the greatest value$ asked by fraction with the greatest value
3. 252 views
Jim creates mixtures for new candies. His boss gives him 20 pounds of 12% milk powder, and 32 pound of 20% milk powder. How many
1. 1 answer
2. asked by khu
3. 487 views
Samuel bought three cups and four spoons for Kshs 324. Daniel bought five cups and Mary bought two sppons of the same type as
1. 2 answers
2. asked by John
3. 1,373 views
A math class has a total of 47 students. the number of females is 17 less than the numberof males. how many males and how many
1. 2 answers
2. asked by greg
3. 1,777 views
Starting from rest, a 11.70 kg suitcase slides 3.14 m down a frictionless ramp inclined at 40° from the floor. The suitcase
1. 1 answer
2. asked by sarah
3. 725 views
Hi! My teacher told my class that the answer to this question is "1-sin x/cosx" but she wants us to figure out why. I tried
1. 1 answer
2. asked by Kelly
3. 565 views
Find all the solutions of the equation in the interval {o,2pi)5sqrt3 tan x+3=8sqrt3 tan x
1. 2 answers
2. asked by Fiona
3. 1,467 views
. The time to fly between New York City and Chicago is normally distributed with a mean of 180 minutes and a standard deviation
1. 1 answer
2. asked by Susan
3. 514 views
A man stands at the midpoint between two speakers that are broadcasting an amplified static hiss uniformly in all directions.
1. 0 answers
2. asked by David Egan
3. 659 views
under what conditions might phenotypic plasticity not evolve and why
1. 0 answers
2. asked by Bri
3. 326 views
To qualify for a store discount, Clay's soccer team must spend at least $560 for new jerseys. The team needs 20 jerseys. Write
1. 3 answers
2. asked by Alex
3. 446 views
In a well organized essay, analyze the language and rhetorical devices the narrator uses to convey his attitude toward Hester
1. 1 answer
2. asked by Amy
3. 762 views
A light string is attached to both a hanging mass m1 = 5 kg and to a pulley of mass m2= 6 kg, and radius R = 0.75 m. If the
1. 1 answer
2. asked by Anonymous
3. 601 views
Triangle DEF where angle E is a right angle. DE measures 55. EF measures x. Angle D measures 49 degrees.What is the value of x
1. 8 answers
2. asked by Bella
3. 5,095 views
Gabe went to the amusement park with $40 to spend. His ticket cost $26.50. Write and solve an inequality to show how much he
1. 7 answers
2. asked by maria
3. 2,851 views
There are 750 students in a school. If the number of girls is 120 more than the boys, how many boys are there in the school?
1. 3 answers
2. asked by Student
3. 604 views
Jenny was planting flowers for her garden. She had to plant 4 rose flowers for every jasmine flower she planted. If she plants
1. 3 answers
2. asked by Student
3. 889 views
Solve the equation with rational exponents. (X-1)^2/3=36
1. 2 answers
2. asked by Brittany
3. 1,054 views
Write equation showing how to 2-phenylethanol could be prepared for each of the following starting materials:a) ethyl
1. 0 answers
2. asked by Help!
3. 392 views
When 20.1 g Sb2S3 reacts with an excess of Fe, 9.84 g Sb is produced. What is the percent yield of this reaction?My work so
1. 1 answer
2. asked by Gianna
3. 1,553 views
Recall from Example 1 that whenever Suzan sees a bag of marbles, she grabs a handful at random. She has seen a bag containing
1. 1 answer
2. asked by Anonymous
3. 10,334 views
What are some effects of predation?
1. 1 answer
2. asked by Student
3. 362 views

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