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Questions Asked on January 17, 2011

Two electrostatic point charges of +60.0 uC and +50.c uC exert a repulsive force on each other of 175 N. What is the distance
1. 5 answers
2. asked by Pablo
3. 10,422 views
Please help me with thisIf 2/3 of N is 4, then 1/2 of N is:
1. 2 answers
2. asked by Becki
3. 7,904 views
On average, earth's crust contains about 8.1% aluminum by mass. If a standard 12-ounce soft drink can contains approximately
1. 7 answers
2. asked by Maria
3. 6,842 views
A motorist drives along a straight road at a constant speed of 15.0 m/s. just as she passes a parked police officer,the officer
1. 3 answers
2. asked by kevin
3. 4,272 views
If two trapezoids have the same area, do they always have the same perimeter? Explain your thinking with words and diagrams.
1. 11 answers
2. asked by pretty
3. 4,021 views
ms. buxx invested a total of $2000 in two savings accounts. The first account pays 3% interest per year and the second account
1. 4 answers
2. asked by kevin
3. 3,836 views
three student chemists measured 50.0 mL of 1.00 M NaOH in separate Styrofoam "coffee cup" calorimeters ( Part B). Brett added
1. 1 answer
2. asked by Daniel
3. 3,286 views
The solubility of NaCl in water is 35.7 g NaCl/100 g H2O. Suppose that you have 500.0 g of NaCl. What is the minimum volume of
1. 1 answer
2. asked by Maria
3. 3,169 views
Assuming complete dissociation of the solute, how many grams of KNO3 must be added to 275 mL of water to produce a solution that
1. 2 answers
2. asked by Nikita
3. 3,053 views
a ladder AP of length 5m inclined to a vertical wall is slipping over a horizontal surface with velocity 2m/s , when A is at a
1. 1 answer
2. asked by jerf
3. 2,983 views
An explosive whose chemical formula is C3H6N6O6 produces water, carbon dioxide, and nitrogen gas when detonated in oxygen. write
1. 2 answers
2. asked by Maria
3. 2,970 views
Which of the following statements is generally not true about state intermediate appellate courts?A. Appellate court decisions
1. 2 answers
2. asked by Meh
3. 2,641 views
Titanium is used in airplane bodies because it is strong and light. It has a density of 4.55 g/cm^3. If a cylinder of titanium
1. 2 answers
2. asked by Maria
3. 2,492 views
For which values of 'a' will the following system have no solutions? Exactly one solution? Infinitely many solutions?x + 2y - 3z
1. 2 answers
2. asked by Linus
3. 2,087 views
Consider the 45 N weight held by two cablesshown below. The left-hand cable is horizon- tal. a) What is the tension in the cable
1. 1 answer
2. asked by cole
3. 1,990 views
How much heat is required to raise the temperature of 70 g of water from 20 C to 80 C?
1. 2 answers
2. asked by Abida
3. 1,760 views
How much heat must be added to 60 g of ice at 0 C to melt the ice completely?
1. 1 answer
2. asked by Abida
3. 1,596 views
A uniform ladder of mass m and length L leans at an angle θ against a frictionless wall. If the coefficient of static friction
1. 1 answer
2. asked by Sydney
3. 1,564 views
If the output piston in a hydraulic pump exerts a greater force than one applied to the input poston, is the pressure at the
1. 1 answer
2. asked by Abida
3. 1,551 views
Two electrostatic point charges of +60.0 uC and +50.c uC exert a repulsive force on each other of 175 N. What is the distance
1. 2 answers
2. asked by Pablo
3. 1,540 views
Time intervals measured with a stopwatch typically have an uncertainty of about 0.2 s, due to human reaction time at the start
1. 2 answers
2. asked by Ashley
3. 1,534 views
4. Vanna has just financed the purchase of a home for $200 000. She agreed to repay the loan by making equal monthly blended
1. 1 answer
2. asked by Michelle
3. 1,503 views
Determine the ionization energy of a hydrogen atom (in kJ/mol) if the electron is in its ground state. (Hints: Use the Rydberg
1. 2 answers
2. asked by Shawn Tabrizi
3. 1,446 views
Could someone help me with this question?A vinegar sample was analyzed and found to be 5.88% acetic acid by volume. The density
1. 1 answer
2. asked by Tyler
3. 1,381 views
In a circle, the measure of an inscribed angle is one-half the measure of its intercepted arc.Is this true or false?
1. 1 answer
2. asked by al
3. 1,368 views
a boy with a mass of 60kg climbs a10m vertially up a ladder. A) how far did he travel? B) how much work is done? C) what are the
1. 2 answers
2. asked by Anonymous
3. 1,366 views
write the following in simplified radical form 3 sqrt 250
1. 1 answer
2. asked by Anonymous
3. 1,350 views
Two points charges of 2uC and -6uC are located at the position(0.0)m and (0.3)m.Calculate the total electrical potential at the
1. 1 answer
2. asked by Joel
3. 1,349 views
The base of a triangle is 8 cm greater than the height. The area is 24cm^2. What is the base and height?
1. 2 answers
2. asked by Nancy
3. 1,336 views
If 8.00 kJ of heat are added to 200. g of waterat 20.0 �C, what is the final temperature of the water?
1. 1 answer
2. asked by jane
3. 1,314 views
Suppose that Maria has 140 coins consisting of pennies, nickels, and dimes. The number of nickels she has is 9 less than twice
1. 3 answers
2. asked by Brittney
3. 1,249 views
A box of mass 65 kg hangs motionless from two ropes, as shown in the diagram above. The angle is 40 degrees. Choose the box as
1. 0 answers
2. asked by freddy
3. 1,220 views
Complete the table below:The hydrogen emission spectrum has four series (or sets) of lines named Balmer, Brackett, Paschen, and
1. 0 answers
2. asked by Shawn Tabrizi
3. 1,214 views
The heat of vaporization of a substance is2900 J/g at its boiling point of 313�C. How much of this substance can be vaporized if
1. 1 answer
2. asked by dave
3. 1,212 views
A sample of crude oil has a density of 0.87g/mL. What volume in liters does a 3.6-kg sample of this oil occupy?
1. 1 answer
2. asked by Maria
3. 1,193 views
The first derivative of the function f is given by f'(x) = (cos^2x)/x - 1/5 How many critical values does f have on the open
1. 1 answer
2. asked by anynymous
3. 1,184 views
Methanol, CH3OH, a colorless, volatile liquid, was formerly known as wood alcohol. It boils at 65.0C and has a heat of
1. 3 answers
2. asked by patty
3. 1,148 views
In writing the title for a painting, shoulld I italicize, underline, or both??
1. 4 answers
2. asked by Jessica Fuentes
3. 1,143 views
I'm taking the medical terminology course and I'm at the part of the course that is working with ICD 9 CM codes. I'm in Chapter
1. 1 answer
2. asked by gabby
3. 1,118 views
What is the surface area of a right circular cylinder with base circle of radius of 5m and height of the cylinder 10m?
1. 1 answer
2. asked by anthony
3. 1,117 views
A novice golfer on the green takes three strokes to sink the ball. The successive displacements are 4.00m north, 2.00m
1. 1 answer
2. asked by joe
3. 1,111 views
Water is running out of a faucet, falling straight down, with an initial speed of 0.50 m/s. At what distance below the faucet is
1. 1 answer
2. asked by john
3. 1,094 views
Diego pulls a 4.5 kg sled across level snow with a force, F, of 200 N on a rope that is 35.0° above the horizontal. If the sled
1. 1 answer
2. asked by taylor
3. 1,094 views
Can you show work please..?1. Joe is sledding down a snow hill when he collides with Mike half way down the hill. Joe and the
1. 1 answer
2. asked by Amy
3. 1,092 views
Using the formula for the area of a triangle, A = 1/2 bh, find the area of this triangle pictured. The base is 2x + 16 and the
1. 2 answers
2. asked by Alyssa
3. 1,077 views
The monthly cost of driving a car depends on the number of miles driven. Lynn found that in May it cost her $410 to drive 300 mi
1. 2 answers
2. asked by Ethan
3. 1,068 views
which is the symbol for the following monatomic ion?8 protons and 10 electrons
1. 1 answer
2. asked by Maria
3. 1,064 views
Calculate the torque about the front support of a diving board, exerted by a 70 kg person 3.0 m from that support. (Take the
1. 2 answers
2. asked by Bill
3. 1,059 views
How much heat (in BTU) would be required to heat and vaporize 100 lb of water from 25°C to saturated steam at 1 atm? Assume
1. 1 answer
2. asked by Jini
3. 1,057 views
suppose you knew the makeup of specific proteind in a cell. how would you determine the particular DNA code that coded for them?
1. 1 answer
2. asked by Anonymous
3. 1,044 views
ineed the location of egypt this is what i wrote so far, Ancient Egypt, civilization that thrived along the Nile River in
1. 7 answers
2. asked by social studies
3. 1,035 views
55% of the people in a town have brown eyes. you choose a random sample of 200 people to survey regarding their eye color. What
1. 0 answers
2. asked by Anonymous
3. 1,033 views
what is the maximum acceleration equation?
1. 1 answer
2. asked by cole
3. 1,022 views
Carbon disulfide,CS2, is a volatile, flammable liquid. It has a vapor pressure of 426.6 mmHg at 29.8C and 760.0 mmHg at 46.5C.
1. 1 answer
2. asked by patty
3. 1,001 views
solve for u, u=sqrt -u+6u=�ã-u+6
1. 2 answers
2. asked by Anonymous
3. 980 views
solve for y, 5y^2-13y=6I did forget the exponent the first time..
1. 2 answers
2. asked by Anonymous
3. 972 views
Two point sources, 5.0 cm apart are operating in phase, with a common frequency of 6.0 Hz, in a ripple tank. A metre stick is
1. 0 answers
2. asked by ali
3. 969 views
I'm taking the medical terminology course and I'm at the part of the course that is working with ICD 9 CM codes. I'm in Chapter
1. 1 answer
2. asked by gabby
3. 962 views
Camilla has 3 times as many points as Lynn. Lynn has 5 more points than Kim. Camilla, Lynn, and Kim combined have twice as many
1. 2 answers
2. asked by Jake
3. 944 views
A 15kg model plane flies horizontally at a constant speed of 12.5 m/s and the kinetic energy is 1171J and the potential energy
1. 0 answers
2. asked by Kim
3. 942 views
how has the internet changed video voyeurism?
1. 3 answers
2. asked by Jenny
3. 934 views
sorry -- here it issimplify this expression : (x^3 y)/(y^(1/2) x^(-2) ) when x is not = 0, and y is not equal to 0 thank you
1. 1 answer
2. asked by deena
3. 925 views
If the 3 sides of a triangle have lengths 9m, 12m, and 15m, what is the area of this triangle?
1. 4 answers
2. asked by jackie
3. 917 views
Write a program that prompts the user to input three numbers. The program should then output the numbers in non-descending order
1. 2 answers
2. asked by swert
3. 906 views
A class has 2 rows of 8 seats each. there are 14 students 4 of whom always sit in the front row and 5 of whom always sit in the
1. 0 answers
2. asked by Esther
3. 904 views
Suppose you plan to save $12 per week.You have already saved $7.50.In how many weeks will you have saved at least $100?
1. 4 answers
2. asked by Anonymous 1
3. 898 views
The electric field midway between two equal but opposite point charges is 825 N/C, and the distance between the charges is 9 cm.
1. 0 answers
2. asked by stesha
3. 886 views
a kilogram of aluminum metal and a kilogram of water are each warmed to 75 degree celisus and placed in two identical insulated
1. 3 answers
2. asked by Sammy
3. 885 views
micro perspective vs marco perspective which has the greatest influencce on a person health?
1. 1 answer
2. asked by carol
3. 867 views
in the past 3 decades, how has the role of profit changed the reporting of the news? when did this shift begin?
1. 2 answers
2. asked by Ricki
3. 844 views
Is an object with a temperature of 273.2 K hotter than, colder than, or at the same temperature as an object with a temperature
1. 1 answer
2. asked by Abida
3. 835 views
I still have a few more sentences on the same theme. I really hope you can look at them too.1)In any case, the face of Big
1. 1 answer
2. asked by Franco
3. 833 views
Mercury has a density of 13.6 g/mL. What is the mas of 4.72 L of mercury?
1. 4 answers
2. asked by Maria
3. 832 views
Write a 350- to 500-word statement that reflects on how your ethnicity influences your personal behavior, attitudes, and values.
1. 2 answers
2. asked by Kayla
3. 814 views
what was the most significant reason for the decline of the Latin Grammar School
1. 1 answer
2. asked by Carnita
3. 806 views
three dimensional identical balls 1,2 and 3 are placed on a straight line at a separation of 10m between balls . initially they
1. 0 answers
2. asked by mackson
3. 806 views
6. A lottery offers two options for the prize.Option A: $1000 a week for life Option B: $ 600 000 in one lump sum. The current
1. 0 answers
2. asked by Chelsea
3. 804 views
Find the position and velocity of a particle at t=1.94 s if the particle is initially moving east at a speed of 19.8 m/s and
1. 1 answer
2. asked by Christopher
3. 803 views
8. Mary would like to save $10 000 at the end of 5 years for a future down payment on a car. How much should she deposit at the
1. 0 answers
2. asked by Chelsea
3. 798 views
a physics book is on top of a drafting table at 35 degree angle. Find the net external force acting on the book and determing
1. 1 answer
2. asked by Grace
3. 794 views
Solveh=30r+20
1. 1 answer
2. asked by Terry
3. 793 views
find the x- and y- component of vector R which has a length of 13cm at 30.0 degrees
1. 1 answer
2. asked by Danny
3. 787 views
Identical +3.07 µC charges are fixed to adjacent corners of a square. What charge (magnitude and algebraic sign) should be
1. 0 answers
2. asked by mackenzie m
3. 785 views
Solve integration using u substitution of (x+1)sqrt(2-x)dx
1. 1 answer
2. asked by Hannah
3. 773 views
Mercury has a density of 13.6 g/mL. What is the mass of 4.72 L of mercury?
1. 1 answer
2. asked by Maria
3. 772 views
A mass is oscillating on the end of a spring. The distance, y, of the mass from its equilibrium point is given by the formula
1. 1 answer
2. asked by Stephanie
3. 769 views
use the quadratic formula to solve for x, 3x^2 + x -8=0
1. 3 answers
2. asked by Anonymous
3. 744 views
A proton is released from rest in a uniform electric field which is directed along the x axis and of magnitude E=2*10exponent5
1. 2 answers
2. asked by Joel
3. 740 views
In the Middle and Southern colonies, how was education for poor girls was accomplished
1. 1 answer
2. asked by Carnita
3. 738 views
In a mathematics olympiad there are 20 finalists. In how many ways can three equal prizes be awarded, assuming that two prizes
1. 2 answers
2. asked by Jen
3. 735 views
what is the length of an equilateral triangle when the area is 45 meters square?
1. 1 answer
2. asked by lindsay
3. 732 views
Find the point on the curve y=x^(1/2) that is a minimum distance from the point (4,0).My book says you use the distance formula.
1. 2 answers
2. asked by kyle
3. 724 views
Solve: 3x-2y=10 2x+3y=-2Graph: Substitution: Elimination: Show Your work! (I can'tfigure out how to graph it and when i used
1. 1 answer
2. asked by Darryl
3. 724 views
Solve: 3x-2y=10 2x+3y=-2Graph: Substitution: Elimination: Show Your work! (I can'tfigure out how to graph it and when i used
1. 1 answer
2. asked by Darryl
3. 719 views
identify the major similarities and differences that exists between the American and European traditions of psychology. Please
1. 1 answer
2. asked by Sarah
3. 715 views
examples of career in home economics
1. 3 answers
2. asked by karishma
3. 710 views
A mass is oscillating on the end of a spring. The distance, y, of the mass from its equilibrium point is given by the formula
1. 0 answers
2. asked by Stephanie
3. 707 views
Using a t test for dependent means based on .05 significance level, what is the power of each studies.Study Effect size N Tails
1. 0 answers
2. asked by Barbara Pratt
3. 703 views
a plank of mass 5kg is placed on a frictionless horizontal table. further a block of mass 2kg is placed over the plank. A
1. 0 answers
2. asked by jessy
3. 691 views
Compare the following objects in the our Solar System in terms of 1. Where they are located and 2. What they are composed of :Su
1. 1 answer
2. asked by peyton
3. 685 views

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