Archives
2011
February

Questions Asked on February 27, 2011

Part 1You are a pirate working for Dread Pirate Roberts. You are in charge of a cannon that exerts a force 10000 N on a cannon
1. 0 answers
2. asked by Mike
3. 1,272 views
The initial kinetic energy imparted to a 0.1 kg bullet is 1036 J. The acceleration of gravity is 9.81 m/s2 . Neglecting air
1. 1 answer
2. asked by Dave
3. 2,506 views
A 16-kg child sits on a 5-kg sled and slides down a 143-meter, 30-degree slope, to the nearest m/s what is his or her speed at
1. 3 answers
2. asked by James
3. 711 views
The points (1,5), (4,5), and (1,0) represent three corners of a rectangle; find the coordinates of the fourth poin
1. 1 answer
2. asked by Anonymous
3. 489 views
If a masss of 65kg is dropped 4.3m onto a spring with a stiffness coefficient of 6.2x10^4 n/m, how far is the spring depressed?
1. 4 answers
2. asked by Mark
3. 503 views
what are three problems students face when parked on campus
1. 1 answer
2. asked by deb
3. 367 views
determine the domain for each function f(x)=2x+3,g(x)=x-1
1. 1 answer
2. asked by jason
3. 318 views
Find the number of square units in the area of the region in the first quadrant which is bounded by x = 4, the y-axis, y = 2,
1. 0 answers
2. asked by sam
3. 483 views
if you attach a mass to the spring from its initial equilibrium position, it vibrates forever in simple harmonic motion. Why
1. 1 answer
2. asked by ashley --- HELP PLEASEE!!!
3. 1,424 views
How many different points of intersection are there for x + y = 7 and y = x squared minus 7?
1. 1 answer
2. asked by Jack
3. 1,141 views
Consider a weak acid-strong base titration in which 25.0 mL of 0.100 M acetic acid is titrated with 0.100 M NaOH.a) Calculate
1. 1 answer
2. asked by Jon
3. 1,039 views
determine the domain for each function f(x)=x-6, g(x)=3x^(2)
1. 0 answers
2. asked by jason
3. 269 views
determine the domain for each function f(x)=6x^(2)-x-1, g(x)=x-1
1. 0 answers
2. asked by jason
3. 791 views
If the surface area of a liquid is increased will the rate of evaporation increase?
1. 1 answer
2. asked by sabrina
3. 416 views
What is the pH of a solution prepared by dissolving 7.5g HCl in water to make 375mL of solution?
1. 1 answer
2. asked by Brittany
3. 518 views
A car accelerates from 25km/hr to 55km/hr in 30 seconds. What is its acceleration?
1. 3 answers
2. asked by Anonymous
3. 1,333 views
It takes 214 kJ of work to accelerate a car from 23.1 m/s to 29.3 m/s. What is the car's mass?
1. 2 answers
2. asked by heather
3. 538 views
What's the function?x= 2, y=14 x=10, y=54 x=8, y=44 x=?, y=34 x=?, y=104 x=?, y=31 I thought it was multiply by 5, add 4 but
1. 1 answer
2. asked by David
3. 936 views
Ms. Sue Ive done my journal entries for the immigrant experience thing, and theres just one more thing I have to add at the
1. 3 answers
2. asked by Sara
3. 554 views
What is the defenition for research?
1. 1 answer
2. asked by Emily
3. 409 views
A billiard ball of mass m = 0.150 kg hits the cushion of a billiard table at an angle of θ1 = 60.0° at a speed of v1 = 2.50
1. 1 answer
2. asked by Em
3. 967 views
in the late nineteenth century:how could trusts purchase a senate seat? what were the sympathies of the national government
1. 1 answer
2. asked by Kayla
3. 1,571 views
A ball of mass 0.70 kg moving with speed of 1.0 m/s hits a wall and bounces back with the same speed in the opposite direction.
1. 1 answer
2. asked by craig45
3. 682 views
-1+(3)(-1)(4)+2=
1. 1 answer
2. asked by alalee
3. 437 views
function f(x)=3x^2-2x-1 find equation of the line that is tangent and parallel to 8x-2y+12=0
1. 0 answers
2. asked by shakira
3. 380 views
derivate of 2sin(x)-cos(x)-cot(x)
1. 0 answers
2. asked by shakira
3. 874 views
find third derivate f(x)=x/x+1
1. 2 answers
2. asked by shakira
3. 800 views
A few homework problems.1) The temp of a monotomic ideal gas remains constant (isothermic) during a process in which 4250 J of
1. 2 answers
2. asked by Carla
3. 503 views
an unbiased coin is tossed 3 times. find the probability that the coin lands heads exactly once.
1. 1 answer
2. asked by Anonymous
3. 733 views
An ideal spring has a spring constant k = 20.0 N/m. What is the amount of work that must be done to stretch the spring 0.70 m
1. 1 answer
2. asked by henry287
3. 1,105 views
integration of x^2 * cos^2(x)
1. 1 answer
2. asked by chris
3. 480 views
how gravitational acceleration is used to benefit mankind and the environment.how can rural people also benefit from the use of
1. 0 answers
2. asked by itumeleng
3. 386 views
Prove that (2,0) is the closest point on the curve x^2 + y^2 = 4 on (4,0.
1. 0 answers
2. asked by Akira
3. 392 views
The simple rule “Like dissolves like” is often used to describe the solubility of a substance in different solvents. Write a
1. 0 answers
2. asked by j
3. 1,029 views
1) Given the terms a35 = 1238, a70 = 1483 of an AP. Find the exact value of the term a105 a sequence, and sum of sequence.2)
1. 0 answers
2. asked by Newbie
3. 532 views
what could you infer about the area where you find pecten fossils?
1. 2 answers
2. asked by morgan
3. 627 views
Given that 3, b, c and 18 are an AP. Find the value of b and c.
1. 3 answers
2. asked by Member001
3. 304 views
Find the number of square units in the area of the region in the first quadrant which is bounded by x = 4, the y-axis, y = 2,
1. 0 answers
2. asked by Tom
3. 457 views
ms.pritchard wrote the following inequality on the board 5.6 with the sign greater on equal to then negative fourteen what
1. 1 answer
2. asked by brooke
3. 1,214 views
explain the difference in boiling points of acetone and 1 proponol. (proponol higher) also explain the difference in water
1. 1 answer
2. asked by z
3. 1,159 views
what are the difference between them..Democratic Group Authoritative Group Consultative Group Participative Group
1. 2 answers
2. asked by jessie
3. 623 views
Consider the reaction shown below.4 PH3(g) P4(g) + 6 H2(g) If, in a certain experiment, over a specific time period, 0.0061 mol
1. 1 answer
2. asked by Mattie
3. 1,525 views
how to multiply amd simplify of-8/63 x 21/32 x -9/42 = Pleas show work or give examples of simular problems
1. 1 answer
2. asked by TK
3. 409 views
I'm stuck on part B of this question:A system does 125 J of work on environment and gains 79 J of heat in the process. Find
1. 2 answers
2. asked by Carla
3. 566 views
Four balls are selected at random without replacement from an urn containing three white balls and five blue balls. Find the
1. 0 answers
2. asked by Anonymous
3. 947 views
A druggist wishes to select three brands of aspirin to sell in his store. He has five major brands to choose from: A, B, C, D
1. 0 answers
2. asked by sam
3. 723 views
Type 1 diabetic injected insufficient insulin so her body can’t use glucose in blood. Blood glucose is 38 mM (normal value =
1. 1 answer
2. asked by Lena
3. 651 views
How many mL of 8.0 M HCl must you dilute with an appropriate volume of H2O to prepare a total volume of 260.0 mL of 1.5 M HCl?
1. 1 answer
2. asked by Herman
3. 458 views
Two skaters are in the exact center of a circular frozen pond. Skater 1 pushes skater 2 off with a force of 100 N for 1.4
1. 0 answers
2. asked by James
3. 1,040 views
I'm stuck on part B of this question:A system does 125 J of work on environment and gains 79 J of heat in the process. Find
1. 0 answers
2. asked by Carla
3. 478 views
A student stands on a scale in an elevator that is accelerating at 2.8m/s^2. If the student has a mass of 94 kg, to the nearest
1. 1 answer
2. asked by James
3. 709 views
The five-digit number 31d26----- is divisible by 3. Find the sum of all possible values of d.
1. 2 answers
2. asked by Tom
3. 633 views
1. 3+2+1=1+2+32. 3(1+4)=(3x1)+(3X4) 3. 9(5+6)=45+54 4. 9+(4+3)=(4+3)+9 5. (9+7)+6=9+(7+6) 6. 5(a+7)=5a+35 A. Associative Prop.
1. 2 answers
2. asked by Hayley
3. 495 views
If you tried to smuggle gold bricks by filling your backpack, whose dimensions are 55cm* 30cm *16cm , what would its mass be?
1. 0 answers
2. asked by Mia
3. 393 views
Copper (II) fluoride contains 37.42%by mass. Calculate the mass of fluorine(in grams)contained in 55.5 g of Copper(II) Fluoride.
1. 4 answers
2. asked by Trudy
3. 2,750 views
Calculate the molarity of 15.4 g of ethanol (C12H22O11) in 71.0 mL of solution
1. 1 answer
2. asked by Kiana
3. 478 views
A 60.0-mL 0.508 M glucose (C6H12O6) solution is mixed with 115.0 mL of 2.43 M glucose solution. What is the concentration of the
1. 0 answers
2. asked by Kiana
3. 442 views
A 5 feet long ladder leans against a wall and makes an angle of 65 degrees with the ground. find, to the nearest tenth of a
1. 1 answer
2. asked by Anonymous
3. 1,243 views
Suppose a basketball player successfully makes 70% of the free throw shots they attempt. Let Xrepresent the number of successful
1. 1 answer
2. asked by Adam
3. 903 views
find the area of each circle. use 22 over 7 for pie. and radis for 15 in.
1. 1 answer
2. asked by barb
3. 425 views
Consider the region defined by the inequalities: 0≤x0≤y -21/4≤y-7/4x y+x≤7 4≤y-3/7x Pick up those points which are the
1. 0 answers
2. asked by haylie
3. 457 views
The Ka value for ethanoic acid is 1.8x10^-5, what would be the pH of a 2.0x10^-2 M solution of ethanoic acid?
1. 1 answer
2. asked by Rachael
3. 487 views
Part 1You are a pirate working for Dread Pirate Roberts. You are in charge of a cannon that exerts a force 10000 N on a cannon
1. 0 answers
2. asked by Dave
3. 707 views
part 1A 1760 kg car accelerates uniformly from rest to 8.8 m/s in 4.52 s. Find the work done on the car in this time. Answer in
1. 0 answers
2. asked by Mike
3. 354 views
The Ka value for ethanoic acid is 1.8x10^-5, what would be the pH of a 2.0x10^-2 M solution of ethanoic acid?
1. 1 answer
2. asked by Rachael
3. 1,253 views
In a reaction involving the bromination of acetone, the following initial concentraions were present in the reaction mixture.ace
1. 1 answer
2. asked by Mal
3. 711 views
how many grams of NaCl (molecular weight 58.5) should be used to prepare 20 liters of a solution containing 154mEq/L?
1. 2 answers
2. asked by mary
3. 6,499 views
The population of SAT scores forms a normal distribution with a mean of µ =500 and a standard deviation of Ïƒ =100. If the
1. 1 answer
2. asked by T
3. 1,290 views
part 1A 1760 kg car accelerates uniformly from rest to 8.8 m/s in 4.52 s. Find the work done on the car in this time. Answer in
1. 0 answers
2. asked by Mike
3. 407 views
1) I have to give out an example of how dogs have evolved, but I don't know any.2) How has Dr. Francine Patterson's research
1. 5 answers
2. asked by Alex L.
3. 478 views
Calculate the concentration of all species in a 0.15 M KF solution. Ka = 6.4 x 10-4 for HF.
1. 3 answers
2. asked by Brian
3. 1,041 views
A mesquito whistles a note of 300 Hz, and flies towards you at a speed of 30 m/s. The air temprature is 20 degrees celcius.
1. 1 answer
2. asked by Taylor
3. 447 views
A restaurant offers an "appetizer-plate special" consisting of six selections from its list of appetizers. If there are more
1. 2 answers
2. asked by ravin
3. 458 views
A 3.00 kg block starts from rest at the top of a 36.0'> incline and slides 2.00 m down the incline in 1.60 s.(a) Find the
1. 1 answer
2. asked by Anonymous
3. 527 views
Graph the following equation: clculte the slope, x-intercept, and y-intercept, and label the the intercelts on the graph.problem
1. 1 answer
2. asked by PEG
3. 588 views
how does esctacy work plz i need 3 explanation
1. 2 answers
2. asked by tarkan
3. 479 views
How much work is needed to lift a 3 kg mass a distance of 0.75 m?
1. 1 answer
2. asked by Lesley
3. 831 views
half of a gallon is a half gallon. half of a half gallon is a quart. half of a quart is a pint. half of a pint is a cup. a cup
1. 2 answers
2. asked by Trevor
3. 911 views
Construct a truth table for ~q^p
1. 0 answers
2. asked by Niki
3. 386 views
An arrow is fired vertically upwards by a bow and reaches an altitude of 134 m. Find the initial speed of the arrow on the
1. 1 answer
2. asked by Lesley
3. 1,599 views
A student uses a spring to launch a marble vertically in the air. The mass of the marble is 0.002 kg and when the spring is
1. 1 answer
2. asked by Lesley
3. 955 views
A children’s roller coaster is released from the top of a track. If its maximum speed at ground level is 8 m/s, find the
1. 2 answers
2. asked by Lesley
3. 2,255 views
A student uses a spring with a spring constant of 130 N/m in his projectile apparatus. When 56 J of potential energy is required
1. 0 answers
2. asked by Lesley
3. 697 views
The pH of a 0.065 M solution of a weak base is 11.70. What is the value of Kb for this base?
1. 5 answers
2. asked by Brian
3. 886 views
How much work must be done to accelerate an 8x105 kg train: a) from 10 m/s to 15 m/s; b) from 15 m/s to 20 m/s; c) to a stop an
1. 1 answer
2. asked by Lesley
3. 523 views
If each of the salts listed in A through E were dissolved in water to make a 0.1 M solution, which solution would have the
1. 1 answer
2. asked by Brian
3. 528 views
Which one of the following pairs of reactants would react together in a Lewis Acid/Lewis Base reaction?a. KOH and HNO2 b. NaOH
1. 1 answer
2. asked by Brian
3. 492 views
How much work is done in accelerating a 2000 kg car from rest to a speed of 30 m/s?
1. 2 answers
2. asked by Lesley
3. 1,561 views
how do you do capacity using only gallos
1. 1 answer
2. asked by tangie
3. 271 views
How do you find the turning point of a quadratic equation? (The Formula)
1. 1 answer
2. asked by Bill
3. 524 views
you have75.0ml of 2.5 M Solution of Na2CrO4(aq). You also have 125ml of a 1.74M solution of AgNO3(aq)Calculate the concentration
1. 2 answers
2. asked by Logan
3. 701 views
a midwestern music competition awarded 32 ribbons. the number of blue ribbons awarded was 3 less than the number of white
1. 3 answers
2. asked by victoria
3. 2,548 views
A board that is 12 feet long must be cut into 2 pieces that have lengths in a ratio of 3 to 2. Find the lengths of the two
1. 2 answers
2. asked by shannon
3. 2,369 views
Suppose a motorcycle with uniform motion travels from a position of 5.0km[S] to a position of 20.0km[N] in 0.5h Find the
1. 1 answer
2. asked by Bob
3. 712 views
Determine the values of a M and N , so that the polynomial 2x^3+mx^2+nx-3 and X^3-3mx^2+2nx+4 are both divisible by x-2.I am so
1. 0 answers
2. asked by rani
3. 549 views
Calculate the derivative indicated.y '(25), y = �ãx + 2 x
1. 0 answers
2. asked by Anonymous
3. 323 views
Volume problem:y=x^3, x=y^3; rotated about x-axis I first made y=x^1/3, then x^3=x^1/3 Then I tried to do an integration from 0
1. 2 answers
2. asked by Leona
3. 419 views
Calculate the pH of a solution that results from the mixture of 50.0 mL of 0.15 M HCOOH with 75.0 mL of 0.13 M HCOONa. Now,
1. 1 answer
2. asked by Brian
3. 592 views
Consider the titration of a 35.0-mL sample of 0.175 M HBr with 0.200 M KOH. Determine the pH after adding 5.0 mL of base beyond
1. 1 answer
2. asked by Brian
3. 1,512 views
how do you solve 140 s + 120 p = 1540 if your trying to figure out how many cups of juice there is for strawberry and pineapple
1. 0 answers
2. asked by abril
3. 393 views

Back to February 2011

Ask a New Question

Archives
Contact Us
Newest
Privacy Policy
Terms of Use
© 2024