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2011
February

Questions Asked on February 17, 2011

A solid copper object hangs at the bottom of asteel wire of negligible mass. The top end of the wire is fixed. When the wire is
1. 1 answer
2. asked by Rachel
3. 3,198 views
find the area of kite whose unequal sides are 15 cm and 20 cm respectively and the angle between the two unequal side is a right
1. 3 answers
2. asked by arindom
3. 2,807 views
As their booster rockets separate, Space Shuttle astronauts typically feel accelerations up to 3g, where g = 9.80 m/s2. In their
1. 1 answer
2. asked by kia
3. 2,797 views
why did they try to build a house on orgo's head?
1. 10 answers
2. asked by lala
3. 2,718 views
the island that became Rome northwestern frontier?
1. 8 answers
2. asked by Carol
3. 2,620 views
how do i write 5.1 x 10^-6 as a number in standard form?
1. 3 answers
2. asked by angiie
3. 2,418 views
Rank the given compounds on their relative acidity.Here was the order I thought it was but it turned out to be wrong. (i based
1. 1 answer
2. asked by Allie
3. 2,203 views
Find the equation of the plane through (1,2,-2) that contains the line x = 2t, y = 3 - t, z = 1 +3t
1. 1 answer
2. asked by Phil
3. 2,141 views
How do you solve:n is 2 given that it is even The directions say "let n be a randomly selected integer from 1-20. Find the
1. 1 answer
2. asked by PLEASE HELP ME OUT!!
3. 2,132 views
if i have 2/4,what are two equivalent fractions?
1. 3 answers
2. asked by Miranda
3. 2,065 views
do any of these words have accents? (if so please identify them):- abrigo - rapido - sabado - vez - menu - operacion -
1. 2 answers
2. asked by melissa
3. 1,922 views
Consider the combustion reaction: C3H8 (g) + 5 O2(g) ---> 3 CO2(g) + 4H2O(g), where triangle symbol H= - 531 kcal/mol. If 6.70 x
1. 1 answer
2. asked by sukanya
3. 1,866 views
A)If a freight train can accelerate at 0.050 m/sec^2, how far must it travel to increase its speed from 2.0 to 8.0 m/sec? B) how
1. 1 answer
2. asked by MLB
3. 1,800 views
From two points each on the opposite sides of a river,the angles of elevations of the top of an 80ft. tree are 60 degree & 30
1. 1 answer
2. asked by Sandy
3. 1,789 views
objeto indirectoModelo ¿Puedes traerme tu plato? No, no te lo puedo traer. ¿Quieres mostrarle la carta? Sí, voy a mostrár la
1. 1 answer
2. asked by Cassie
3. 1,650 views
at 327 degrees C, the equilibrium concentrations are [CH3OH]=0.15M, [CO]=0.24M, and [H2]=1.1M for the reaction:
1. 1 answer
2. asked by erica
3. 1,597 views
A large wooden crate is pushed along a smooth, frictionless surface by a force of 87 N. The acceleration of the crate is
1. 1 answer
2. asked by mayrel
3. 1,596 views
A 200-g block is attached to a horizontal spring and executes simple harmonic motion with a period of 0.250 s. If the total
1. 2 answers
2. asked by Ray
3. 1,568 views
1. A tennis player wins a math 55% of the time when she serves first and 47% of the time when her opponent serves first. The
1. 1 answer
2. asked by Biren bahkta
3. 1,547 views
A piston, A, as shown below, has a diameter of 0.54 cm. A second piston, B has a diameter of 3.8 cm. Determine the force, F,
1. 1 answer
2. asked by Nataliya
3. 1,538 views
Ricardo y Tomás sonlos menos aburre (the least boring) de la fiesta. Mi profesor de biología es (the oldest) de la
1. 2 answers
2. asked by Cassie
3. 1,462 views
I'm factoring special cases and i cant figure this problem out:45t^2-72t+24 please help
1. 2 answers
2. asked by Lauren
3. 1,422 views
I do not know how to answer this question. Would someone please help me with each of the four question below? Thank you.Question
1. 1 answer
2. asked by Dave
3. 1,317 views
Please help me?ln(x+1)-ln(x-2)=ln(5) 1. Solve equation by setting up algebraically. 2. Use appropriate properties of Logarithm
1. 3 answers
2. asked by Sherry
3. 1,316 views
A 150 kg safe on frictionless casters is to be raised with 1.2 meters off the ground to the bed of a truck. Planks 4m long are
1. 2 answers
2. asked by roxy
3. 1,308 views
1) The speed of light in a certain liquid is 3/5 the speed in a vacuum. What is the index of refraction of the liquid?2) A ray
1. 1 answer
2. asked by Ninzy
3. 1,255 views
a liquid has an enthalpy of vaporization of 30.8 kg.mol. at 273 K it has a vapor pressure of 102 mmHg. What is the normal
1. 0 answers
2. asked by ella
3. 1,229 views
A monatomic ideal gas is compressed adiabatically from a pressure of 1.09 105 Pa and volume of 250 L to a volume of 39.0 L.(a)
1. 1 answer
2. asked by lissa
3. 1,218 views
in a time of t seconds, a particle moves a distance pf s meters from it's starting point, where s=3t^2 Find the ave velocity
1. 2 answers
2. asked by anthony
3. 1,201 views
1) The speed of light in a certain liquid is 3/5 the speed in a vacuum. What is the index of refraction of the liquid?2) A ray
1. 1 answer
2. asked by Ninzy
3. 1,185 views
box full of books rests on a wooden floor. The normal force the floor exerts on the box is 235 N.a) You push horizontally on the
1. 2 answers
2. asked by mayrel
3. 1,183 views
Three double bonds in Cyclohexene (CH subscript 3) 3 (another subscript) CCl with AlCl (subscript 3) as a catalyst results in
1. 1 answer
2. asked by Judy
3. 1,166 views
A box sits on a horizontal wooden board. The coefficient of static friction between the box and the board is 0.41. You grab one
1. 3 answers
2. asked by melad
3. 1,159 views
400 cm3 of 0.5mol/dm3 hydrochloric acid was reacted with 5g of magnesium oxide. Calculate the mass of reacted oxide? Show the
1. 2 answers
2. asked by vigor
3. 1,143 views
A solution is made by dissolving 46.5g of urea, (CH4N2O) a nonelectrolyte, in 316g of water. Calculate the vapour pressure of
1. 1 answer
2. asked by wini
3. 1,143 views
Can we use an AR grade chemical for UV spectrometric analysis? Or is it a must to use a chemical that is specially designated
1. 0 answers
2. asked by candy
3. 1,102 views
Find the derivate of the functionf(x) = 2x2 + 23x + 5 What is the value of this derivative when x = 19
1. 1 answer
2. asked by maggie
3. 1,101 views
If the amplitude of a sound wave is quadrupled, by what factor will the intensity increase?
1. 1 answer
2. asked by Student in Need
3. 1,099 views
A mass of 8.10 kg is suspended from a 1.69 m long string. It revolves in a horizontal circle as shown in the figure.The
1. 1 answer
2. asked by Sarah
3. 1,090 views
Mrs. Scheib was riding her bike and leaves home and rides due east for a distance of 45 km. she returns home on the same bike
1. 1 answer
2. asked by anon
3. 1,078 views
Use the discriminant to determine whether the following equations have solutions that are: two different rational solutions; two
1. 1 answer
2. asked by sarah
3. 1,075 views
You’re asked to design a network for use in a training environment. It should be mobile, easy to set up, and simple to tear
1. 0 answers
2. asked by Merrie
3. 1,065 views
In zero-gravity astronaut training and equipment testing, NASA flies a KC135A aircraft along a parabolic flight path. As shown
1. 0 answers
2. asked by kia
3. 1,050 views
A student throws a ball vertically upward such that it travels 7.5 to its maximum height.If the ball is caught at the initial
1. 1 answer
2. asked by Anonymous
3. 1,048 views
i have a history test tomarrow and am not so confident about it...do u know any methods that could help me by tomarrow?
1. 3 answers
2. asked by patri
3. 1,039 views
What are the solutions of the quadratic equation below?4x2 - 30x + 45 = 0
1. 1 answer
2. asked by Jay
3. 1,023 views
Could someone direct me to some websites that list the nutritional needs for men and women? Thanks
1. 3 answers
2. asked by net
3. 1,009 views
some parts of spain remained under muslim control for how many years
1. 2 answers
2. asked by robert
3. 1,003 views
Two boxes with different masses M1 = 1.1 kg and M2 = 3.0 kg are tied together on a frictionless ramp surface which makes an
1. 0 answers
2. asked by melad
3. 979 views
what is the tone and diction in the poem Tableau by countee cullen
1. 2 answers
2. asked by lilly
3. 978 views
Estimate the chronic daily intake of 1,1,1-trichloroethane from exposure tocity water supply that contains a
1. 0 answers
2. asked by Jazmin
3. 977 views
Three(cylindrical) steel drums are put together and a steel band is wrapped tightly around the three drums. If the radius of
1. 0 answers
2. asked by Megan
3. 958 views
Discuss how confirmation bias can influence perceptions and how some beliefs can actually generate their own confirmation
1. 3 answers
2. asked by Anonymous
3. 949 views
A circular wire coil consists of 100 turns and is wound tightly around a very long iron cylinder with a radius of 2.5 cm and a
1. 0 answers
2. asked by Isabell
3. 946 views
At what altitude above the Earth's surface would your weight be two-thirds of what it is at the Earth's surface? (Assume Re =
1. 1 answer
2. asked by melad
3. 935 views
solve using the elimination method.show your work. if the system has no solution or infintite number of solutions, state this
1. 1 answer
2. asked by Tiana
3. 913 views
A Coast Guard cutter detects an unidentified ship at a distance of 16.7 km in the direction 13.8° east of north. The ship is
1. 0 answers
2. asked by kia
3. 909 views
Est-ce que tu voyages beaucoup? Ou?Oui je Voyage beaucoup à Vancouver. Est-ce que tu aimes prendre des photos? No je n'aime pas
1. 3 answers
2. asked by Anna
3. 902 views
A science student is riding on a flatcar of a train traveling along a straight horizontal track at a constant speed of 12.0 m/s.
1. 1 answer
2. asked by kia
3. 901 views
describe several factors that caused the public to feel demoralized during the late 1800
1. 0 answers
2. asked by Yolanda
3. 900 views
I need help with scales, please!Q: You are making a scale drawing of a room using a scale of 1-inch:4-feet. a) The room is 14
1. 3 answers
2. asked by Erin
3. 899 views
To totally convert a given amount of mechanical energy into heat isChoose one answer. a. impossible. b. possible. c. impossible
1. 1 answer
2. asked by Anonymous
3. 867 views
A pulley is attached to the ceiling (as shown in the figure below). Spring scale A is attached to the wall and a rope runs
1. 1 answer
2. asked by mayrel
3. 864 views
Calculate the magnitude of the potential difference between points a and b in the figure if R1=2.36 Ù, R2=4.29 Ù,and R3=10.08
1. 1 answer
2. asked by Paul
3. 862 views
write the formulas of the complex ion formed betweena) the ligand, Cl-, and the platinum(II) ion with a coordination number of
1. 0 answers
2. asked by sue
3. 857 views
write the formulas of the complex ion formed betweena) the ligand, Cl-, and the platinum(II) ion with a coordination number of
1. 0 answers
2. asked by sue
3. 855 views
one taxi company charges 75 cents for the first quarter mile and 15 cents for each additional mile the competing taxi company
1. 1 answer
2. asked by eva
3. 853 views
Flask a contains 2 liters of ch4 (g) and flask b contains 2 liters of 02 (g) each gas sample has the same1) density 2) mass 3)
1. 1 answer
2. asked by Noelle
3. 852 views
I posted a question on flying fish and Sra answered me this morning, and she sent me a browse that she typed in but nothing
1. 1 answer
2. asked by Inna
3. 852 views
What is the meaning of angle of depression and angle of elevation?
1. 2 answers
2. asked by Natasha
3. 846 views
cos θ = (2√(2)) / (3)sin θ = - (1/3) then what would the triangle look like, the placement of the sides on quadrant 1,2,3,
1. 0 answers
2. asked by Amy
3. 845 views
The drawing below shows an elastic cord attached to two back teeth and stretched across a front tooth. The purpose of this
1. 0 answers
2. asked by mayrel
3. 844 views
WHAT IS ALCOHOL!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
1. 1 answer
2. asked by jugveer's cousin
3. 844 views
A car travels due east with a speed of 35.0 km/h. Raindrops are falling at a constant speed vertically with respect to the
1. 2 answers
2. asked by kia
3. 843 views
On vacation, your 1200- car pulls a 540- trailer away from a stoplight with an acceleration of 1.50. What is the net force
1. 1 answer
2. asked by Ashley
3. 843 views
when 6 M NaOH is slowly added to a solution containing chromium (III) ion, a precipate forms. However when an excess of 6 M NaOH
1. 0 answers
2. asked by lillian
3. 843 views
A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, so that
1. 2 answers
2. asked by Emily
3. 829 views
Evaluate the indefinite integral.∫ sec^3x tanx dx I let u=tanx took derivative.. du=sec^2x dx ..now what??
1. 1 answer
2. asked by Anonymous
3. 825 views
A 10.0-kg block is at rest on a horizontal floor. If you push horizontally on the 10.0-kg block with a force of 20.0 N, it just
1. 1 answer
2. asked by melad
3. 822 views
A barge is hauled along a straight-line section of canal by two horses harnessed to tow ropes and walking along the tow paths on
1. 1 answer
2. asked by mayrel
3. 820 views
Why was the government of Canada(1791)not truly a representative government? This system was not truly a representative one
1. 1 answer
2. asked by Sara
3. 811 views
In a Young's double-slit experiment, the angle that locates the second-order bright fringe is 3.0°. The slit separation is 4.8
1. 0 answers
2. asked by Alan
3. 808 views
How do you write the expression for the area of the rectangleIf the length of a rectangle is two more than three times it's
1. 4 answers
2. asked by Corey wicks
3. 802 views
Organic Chicken Company has a debt-equity ratio of .65. Return on assets is 8.5 percent, and total equity is $540,000. what is
1. 0 answers
2. asked by Lizi
3. 785 views
post a 150- to 300-word response to the following discussion question by clicking on Reply:Has the explosion of available
1. 4 answers
2. asked by Darlene
3. 778 views
How do I set-up/solve this problem? Please help me.The half-life of the radioactive isotope gallium-70 is 20 minutes. If the
1. 3 answers
2. asked by Melody
3. 766 views
a 265 ml flask contains pure helium at a pressure of 756 torr. A second flask with a volume of 460 ml contains pure argon at a
1. 0 answers
2. asked by FSU
3. 761 views
a rifle aimed horizontally and 5 feet above level ground fires a bullet with a muzzle velocity of 3000 ft/sec. How far does the
1. 0 answers
2. asked by Jr
3. 754 views
What are the seven major decision points involved in job analysis of HR selection purposes?How do you conduct a job analysis for
1. 1 answer
2. asked by Laura
3. 753 views
The Ka value of nitrous acid, HNO2 , is 4.0 × 10¯4 . What is the equilibrium constant for the reaction; NO2¯ + H2O <-> HNO2 +
1. 0 answers
2. asked by Thomas
3. 753 views
The gas tank in Micheal's car can hold 18.0 gallons. If the tank currently contains 5.5 gallons, what fraction of the tank is
1. 2 answers
2. asked by leila
3. 749 views
A group of Mechanical Engineering students are attempting to pull a large crate of mass M=175.0kg on a level driveway. The
1. 0 answers
2. asked by Sarah
3. 741 views
f: A→B, g :B→AIs g ° f defined? If so, what is its domain and range? Any suggestions?
1. 11 answers
2. asked by Francesca
3. 733 views
A 74.0 kg ice skater moving to the right with a velocity of 2.90 m/s throws a 0.15 kg snowball to the right with a velocity of
1. 0 answers
2. asked by Mel
3. 732 views
For a given reaction, the rate constant doubles when the temperature is increasd from 27C to 49C What ite activation energy?
1. 0 answers
2. asked by reginajones
3. 730 views
An airplane has an airspeed of 724 kilometers per hour at a bearing of 30 degrees.The wind velocity is 32 kilometers per hour
1. 0 answers
2. asked by Matt
3. 730 views
1. Write balanced equations for each of the following processes.a. Chromium- 51, which targets the spleen and is used as a
1. 0 answers
2. asked by Sharon
3. 726 views
A retangular poster is to be made out of cardboard. The margins on the top and the bottom will be 2 inches. The margins on the
1. 1 answer
2. asked by Katie
3. 717 views
What happens to temperature and precipitation as one moves inland and away from water bodies?I know that land heats and cools
1. 1 answer
2. asked by Sara
3. 713 views
if i had mixture of sodium carbonate and sand, and spilled some sodium carbonate (no sand spilled) after weighing the mixture,
1. 1 answer
2. asked by chriss
3. 712 views

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