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2011
February

Questions Asked on February 22, 2011

Archer pulls her bow string back 0.4 m by exerting a force that increases uniformly from zero to 230 N.What is the equivalent
1. 4 answers
2. asked by Nabil
3. 10,350 views
Which of the following statements about work is or are true? (More than one statement may be true.)A. Negative net work done on
1. 1 answer
2. asked by andrea
3. 7,702 views
A continuous function f, defined for all x, has the following properties:1. f is increasing 2. f is concave down 3. f(13)=3 4.
1. 1 answer
2. asked by Cecille
3. 6,712 views
Find the accumulated value of an investment of $5000 at 5% compounded monthly for 8 years.
1. 3 answers
2. asked by amber
3. 5,526 views
If a curve with a radius of 88m is perfectly banked for a car traveling 75km/h, what must be the coefficient of static friction
1. 4 answers
2. asked by Emily Grossman
3. 5,441 views
How do you solve this problem?A ball on the end of a string is revolved at a uniform rate in a vertical circle radius of 72.0
1. 7 answers
2. asked by Emily Grossman
3. 5,342 views
Two balls having different masses reach the same height when shot into the air from the ground.If there is no air drag, which of
1. 1 answer
2. asked by andrea
3. 4,189 views
what potential difference is required to pass 3.0 A through 28 ohm's
1. 4 answers
2. asked by pablo
3. 3,764 views
Given the numerical values shown for the function f(x), find approximate values for the derivative of f(x) at each of the
1. 2 answers
2. asked by Celine
3. 3,262 views
A rock is thrown upward at an angle of 50 degrees with respect to the horizon. As it rises, its vertical component of velocity
1. 1 answer
2. asked by Tamara
3. 3,140 views
The position of a particle moving along the x-axis is given by s(t)=2t2+4. Use difference quotients to find the velocity v(t)
1. 1 answer
2. asked by Cecille
3. 3,092 views
) Which of the following should dissolve the smallest amount of silver sulfide per liter, assuming no complex formation? A) 0.1
1. 1 answer
2. asked by sana
3. 2,390 views
Explain how you can break apart 3x9 to help you multiply.
1. 7 answers
2. asked by Joe
3. 2,226 views
the average speed of light slows to 0.75 when it refracts through a praticular piece of plastic.a. what change is there in the
1. 1 answer
2. asked by Sarah
3. 2,081 views
Find the degree ionization of .75 M HF
1. 1 answer
2. asked by Skibba
3. 2,055 views
A bead with a mass of 0.085 g and a charge of 20 nC is free to slide on a vertical rod. At the base of the rod is a fixed 20 nC
1. 2 answers
2. asked by Alona
3. 2,053 views
A block slides a distance d down a frictionless plane and then comes to a stop after sliding a distance s across a rough
1. 1 answer
2. asked by andrea
3. 2,045 views
Consider an airplane that normally has an air speed of 120 km/h in a 105 km/h crosswind blowing from west to east. Calculate its
1. 2 answers
2. asked by macarena
3. 2,020 views
a .330 kg volleyball is dropped from rest. it takes it 1.30 s to reach the ground. what is the magnitude of its momentum just
1. 1 answer
2. asked by vicki
3. 2,002 views
A ball on the end of a string is revolved at a uniform rate in a vertical circle of radius 72.0m, as shown in figure. If it's
1. 3 answers
2. asked by Emily Grossman
3. 1,922 views
Larry has $2600 to invest and needs $3000 in 11 years. What annual rate of return will he need to get in order to accomplish his
1. 1 answer
2. asked by Brad
3. 1,916 views
what are the benefits and disadvantages of using medical terminology in medical office management?
1. 1 answer
2. asked by Anela
3. 1,880 views
Consider two frictionless inclined planes with the same vertical height. Plane 1 makes an angle of 25.0 degree with the
1. 1 answer
2. asked by andrea
3. 1,839 views
At a certain temperature, Kc = 33 for the reaction:H2(g) + I2(g) 2HI(g) Assume that the initial concentrations of both H2 and I2
1. 2 answers
2. asked by Tiffany
3. 1,721 views
Decide whether each of the following is water-soluble. If soluble tell what ions are produced.A. Na2CO3 B. CuSO4 C.NiS D.BaBr2 I
1. 2 answers
2. asked by Danielle
3. 1,711 views
7.A turntable reaches an angular speed of 33.3 rpm, in 2.1 s, starting from rest.(a) Assuming the angular acceleration is
1. 3 answers
2. asked by jimmyjonas
3. 1,687 views
A rectangle is to be inscribed in a semicircle of radius 8, with one side lying on the diameter of the circle. What is the
1. 1 answer
2. asked by Erica
3. 1,678 views
-3x + 2y = 8x + 4y = -4 use substitution method to solve the linear system.
1. 2 answers
2. asked by Bun
3. 1,627 views
a die is rolled 10 times. find the chance of....a)not getting 10 sixes b)all the rolls showing 5 spots or less I'm not sure how
1. 1 answer
2. asked by karen
3. 1,618 views
shad is 3ft from a lamppost that is 12 ft high. shad is 5 1/2 ft tall. how long is shad's shadow?
1. 2 answers
2. asked by kourtney
3. 1,560 views
"An alpha particle (a helium nucleus) is traveling along the positive x-axis at 1 250 m/s when it enters a cylindrical tube of
1. 1 answer
2. asked by Anonymous
3. 1,521 views
Lake Kickapoo, TX, is approximately 12 km in length by 2.5 km in width.The inflow for the month of April is 3.26 cubic meter per
1. 2 answers
2. asked by Jazmin
3. 1,519 views
A billiard ball rolling across a table to the right at 2.2 m/s makes a head-on elastic collision with an identical ball. The
1. 1 answer
2. asked by micha
3. 1,516 views
Find the cost of 60 tonnes of cocoa at 25 per 100-kg sack
1. 4 answers
2. asked by Praise
3. 1,494 views
A cylindrical tank is lying horizontally on the ground, its diameter is 16 feet, its length is 25 feet, the depth of the water
1. 1 answer
2. asked by Anonymous
3. 1,467 views
how many moles of gas are contained in a 50.0L cylinder at a pressure of 100.0 atm and a pressure of 35 C?
1. 1 answer
2. asked by donna
3. 1,417 views
A psychology class is comprised of 4 female and 6 male students. If the instructor of the class randomly chooses 6 students from
1. 1 answer
2. asked by John
3. 1,339 views
As a consumer,what things do you consider in judging the quality of cookies you buy in a supermarket
1. 2 answers
2. asked by francis
3. 1,318 views
How did the Vietnam War, and the domestic opposition to it, come to dominate American politics in the 1960s?
1. 1 answer
2. asked by carol
3. 1,303 views
2.A spy satellite is in circular orbit around Earth. It makes one revolution in 6.02 hours.(a) How high above Earth's surface is
1. 2 answers
2. asked by jimmyjonas
3. 1,286 views
Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state
1. 1 answer
2. asked by Joel
3. 1,286 views
Could someone recheck this-I don't understand the two follow up answers because they seem to contradict each other-Maybe its the
1. 2 answers
2. asked by BethAnne
3. 1,272 views
A cylinder has a diameter of 80 cm and a length of 45 cm. Another cylinder has the same volume but is 80cm long. What is the
1. 3 answers
2. asked by priya
3. 1,262 views
I need an advertisement which hasn't been banned yet, but that you think should be banned. I don't really pay attention to ads,
1. 1 answer
2. asked by Celina
3. 1,246 views
The two blocks in the figure are connected by a massless rope that passes over a pulley. The pulley is 17 in diameter and has a
1. 0 answers
2. asked by Saif sidd
3. 1,243 views
One of the tenets of the pseudoscience (i.e., "false science") of astrology is that, in some mysterious way, the positions of
1. 2 answers
2. asked by andrea
3. 1,189 views
A 10.3 kg block of ice slides without friction down a long track. The start of the track is 4.2 m higher than the end of the
1. 1 answer
2. asked by Breezerlea
3. 1,186 views
How to solve/ work this problem? If a curve with a radius of 88m is perfectly banked for a car traveling 75 km/h, what must be
1. 2 answers
2. asked by Emily Grossman
3. 1,185 views
I need an advertisement which hasn't been banned yet, but that you think should be banned. I don't really pay attention to ads,
1. 2 answers
2. asked by Celina
3. 1,178 views
You would like to invest in $12,000 in two different bonds. Some of the amount will be invested in treasury bonds at 10% annual
1. 1 answer
2. asked by Jaison
3. 1,176 views
If 22 grams of water are saturated at 75 degrees celsius with potassium nitrate and then cooled to 40 degrees celsius, how much
1. 0 answers
2. asked by chris
3. 1,166 views
what does this mean? psychology is uniquely qualified to help intervene?I also would like you to comment on what are at least
1. 2 answers
2. asked by Lee
3. 1,165 views
Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state
1. 1 answer
2. asked by Betty
3. 1,158 views
A hammer falls from a scaffold on a building 50.0m above the ground. Find its speed as it hits the ground.
1. 2 answers
2. asked by stacey
3. 1,154 views
A 100.0 W light bulb hangs from the ceiling. What is the visible light intensity on the floor, 2.1 m directly below the bulb, if
1. 1 answer
2. asked by Lynn
3. 1,152 views
A high diver leaves the end of a 5.0 m high diving board and strikes the water 1.4 s later, 2.8 m beyond the end of the board.
1. 0 answers
2. asked by Anonymous
3. 1,141 views
Toyota Motor Credit Corporation (TMCC), a subsidiary of Toyota Motor, offered some securities for sale to the public on March
1. 2 answers
2. asked by Lizi
3. 1,126 views
How do you solve this problem?How fast (in rpm) must a centrifuge rotate if a particle 9.00cm from the axis of rotation is to
1. 3 answers
2. asked by Emily Grossman
3. 1,126 views
Calculate the impulse that must be imparted to stop a 5.0kg object traveling at 8.0 m/s? If the object came to a stop in 10 s,
1. 1 answer
2. asked by anonymous
3. 1,124 views
Select the set of equations that represents the following situation: Mary invested one amount at 7% simple interest, and a
1. 1 answer
2. asked by Joel
3. 1,114 views
Describe, in detail, how to make 5.5 liters of a 2.5 molar HCl solution from a 10.5 molar HCl stock solution.
1. 1 answer
2. asked by Kristen
3. 1,111 views
If a bicycle has a crankshaft of 40 teeth, and there are three rear sprockets attached to the rear wheel, 20 teeth, 16 teeth and
1. 0 answers
2. asked by Maggie
3. 1,109 views
What is the concentration of HCl in a 250.0 mL sample of hydrochloric acid if 15.5 mL of 0.0100 M NaOH is needed to react with
1. 1 answer
2. asked by Maddy
3. 1,093 views
A hospital performs 3 types of operations. The first type takes 30 minutes, and they charge $700 for it. The second type takes 1
1. 1 answer
2. asked by Sarah
3. 1,070 views
1) a loaded cart with a mass of 96 kg sits at reat atop a 40 degree inclined plane that measures 20.5m long. accidentally the
1. 1 answer
2. asked by shelly
3. 1,069 views
Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state
1. 1 answer
2. asked by Betty
3. 1,045 views
A music store offers a prize to a customer who can guess the closest, the number of jelly beans that fill a litre jar on the
1. 2 answers
2. asked by Riah
3. 1,044 views
The story Early Inklings but John updik How does the last line reinforce the meaning of the pun?Last line contains This was my
1. 1 answer
2. asked by Shayla
3. 1,013 views
Calculate the percent mass of a solution made by dissolving 25.2 of KBr into .250 liters of water.
1. 2 answers
2. asked by yoda
3. 1,010 views
Let f(x) = x^3 - 7x^2 + 25x - 39 and let g be the inverse function of f. What is the value of g'(0)?
1. 1 answer
2. asked by Erica
3. 1,009 views
Penny has been hired to paint 5 bulletin boards at her school. To calculate the amount of surface she needs to paint, she
1. 1 answer
2. asked by Emelie
3. 1,005 views
This is true or falseA possessive adjective is a descriptive word that tells whose something is I think this is false because
1. 4 answers
2. asked by BethAnne
3. 984 views
How can you use technology in your elementary science instruction to help children in their inquiries?
1. 1 answer
2. asked by Anonymous
3. 968 views
3.A roller coaster has a vertical loop with radius 27.1 m. With what minimum speed should the roller coaster car be moving at
1. 1 answer
2. asked by jimmyjonas
3. 944 views
Is there euphony, cacophony, onomatopoeia in the poem Phenomenal Woman by Maya Angelou? Examples are needed.
1. 1 answer
2. asked by Andrea
3. 939 views
How and why did the American economy soar from 1950 to 1970?
1. 1 answer
2. asked by carol
3. 938 views
What does I=prt mean in 7th grade verison?
1. 3 answers
2. asked by Rebecca Broda
3. 938 views
What volume of 0.406 M KOH is required to completely react with 18.50 mL of 0.287 M H2SO4?
1. 2 answers
2. asked by Maddy
3. 907 views
How to solve/work problem?Two objects attract each other gravitationally with a force of 2.5 * 10^-10 N when they are .25m
1. 2 answers
2. asked by Emily Grossman
3. 899 views
Under Franklin Roosevelt's Good Neighbor policy,A. the collective security among the nations of the Western Hemisphere declined.
1. 6 answers
2. asked by Anonymous
3. 898 views
Two satellites are in circular orbits around Jupiter. One, with orbital radius r, makes one revolution every 17 h. The other
1. 2 answers
2. asked by jimmyjonas
3. 888 views
You stand on the seat of a chair and then hop off.During the time you are in flight down to the floor, the Earth is lurching up
1. 2 answers
2. asked by kia
3. 885 views
1. Iron reacts with oxygen according to the following equation:Fe + O2→ Fe2O3 a. Balance the equation. b. Assuming you start
1. 1 answer
2. asked by Ashley
3. 883 views
The $75 cost for a party was to be shared equally by all of those attending. Since five more people attended than was expected,
1. 1 answer
2. asked by Andrew
3. 879 views
we have 159ml of CO2 at 38.9 C and 92.4 kPa. if the conditions change to 64.9 C and 174 kPa, what is the volume of the gas?
1. 1 answer
2. asked by Nicole
3. 866 views
Cody’s motorboat took 3 hr to make a trip downstream with a 6-mph current. The return trip against the same current took 5 hr.
1. 2 answers
2. asked by Joel
3. 865 views
change to reported speechspeaker a: eih she is coming! speaker s:who? speaker a: that woman speaker a:I really don't think she
1. 1 answer
2. asked by sharon
3. 852 views
The line y = mx+b with b≥2 is tangent to the graph f(x) = -2(x-2)² + 2 at a point in the first quadrant. What are all
1. 0 answers
2. asked by Erica
3. 847 views
the gas tank in bob's car holds at most 15 gallons. He has already filled the tank with 7 gallons of gas. he will continue to
1. 1 answer
2. asked by Jay
3. 840 views
The temperature of 100.0g of water initially at 25.0 degrees C in a calorimeter increases to 30.0 degrees C after adding a 20.0g
1. 2 answers
2. asked by Jaclyn
3. 840 views
Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state
1. 1 answer
2. asked by Joel
3. 835 views
How many grams of sodium hydroxide are required to prepare 500 mL of 0.500 M NaOH?
1. 2 answers
2. asked by Maddy
3. 822 views
a 2 kg rabbit starts from rest and is moving at 6 m/s after 3 seconds. What force must the rabbit cause to makes this change in
1. 1 answer
2. asked by becky
3. 820 views
Could someone please help me-I'm totally confused on this.I have to say that the person has his/her/their own book or books in
1. 5 answers
2. asked by BethAnne
3. 818 views
a curve ahs parametric equations x=t^2and y= 1-1/2t for t>0. i)find the co-ordinates of the point P where the curve cuts the
1. 1 answer
2. asked by Hannah
3. 817 views
When 1.O M solution of NaCl at 25 degrees C, is heated to 55 degrees C the:A) density increase and the molarity increases B)
1. 2 answers
2. asked by Courtney
3. 804 views
tom saved $550 to go on a school trip. the cost for a hotel room, including tax, is $80 per night. write and inequality to show
1. 1 answer
2. asked by Jay
3. 797 views
Why was control of the seas so important for the Allies and the Axis?
1. 2 answers
2. asked by Kaylee
3. 791 views
A communications satellite is in a synchronous orbit that is 3.00 107 m directly above the equator. The satellite is located
1. 0 answers
2. asked by Anonymous
3. 783 views
Using C++ (if, char or Boolean)Write a program that asks the user for a two digit number and then prints the English word for
1. 2 answers
2. asked by Sundayy
3. 753 views

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