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2012
October

Questions Asked on October 5, 2012

A 2000 kg car is slowed down uniformly from 18.0 m/s to 5.00 m/s in 4.20 s. (a) What average total force acted on the car during
1. 1 answer
2. asked by Dee
3. 2,353 views
Two packing crates of masses 7.88 kg and 4.62 kg are connected by a light string that passes over a frictionless pulley as in
1. 1 answer
2. asked by Anonymous
3. 705 views
A piece plywood 24 inches wide is cut into strips 2 and a half inches wide, how many strips of this with can be cut. Please
1. 2 answers
2. asked by Barry
3. 2,912 views
what is the written form of .6045?
1. 1 answer
2. asked by Mary
3. 334 views
A hockey puck is hit on a frozen lake and starts moving with a speed of 14.4 m/s. 3.0 seconds later, its speed is 7.3 m/s.(b)
1. 1 answer
2. asked by Anonymous
3. 605 views
If a^x
1. 1 answer
2. asked by Whizkid
3. 297 views
The formulas for ethane, ethene and ethyne are C2H6, C2H4, and C2H2 respectively. Rank this chemicals 1,2,3(highest)in terms of
1. 1 answer
2. asked by Lea
3. 2,133 views
How can knowing the multiplication properties help you evaluate 5x(20x63)?
1. 1 answer
2. asked by Kiera
3. 407 views
A car is equipped with a bumper that is designed to absorb collisions. The bumper is mounted to the car using pieces of flexible
1. 1 answer
2. asked by Vmel
3. 933 views
If M and m are particles connected by light inextensible string. M is held at center androtated about horizontal axis as M is in
1. 0 answers
2. asked by Anil
3. 824 views
Rank C2H6O, C3H8O and C4H^10 O in terms of IMF and explain their structures? neeed heeelppp.thank you
1. 4 answers
2. asked by tracy
3. 800 views
A poster is 12 inches longer than it is wide. Find a function that models its area A in terms of its width w.
1. 1 answer
2. asked by monic
3. 2,665 views
The height of a cylinder is three times its radius. Find a function that models the volume V of the cylinder in terms of its
1. 1 answer
2. asked by monic
3. 2,578 views
A rectangle has an area of 15 m2. Find a function that models its perimeter P in terms of the length x of one of its sides.
1. 1 answer
2. asked by monic
3. 2,130 views
The sum of two positive numbers is 90. Find a function that models their product P in terms of x, one of the numbers.
1. 1 answer
2. asked by monic
3. 3,398 views
A right triangle has one leg four times as long as the other. Find a function that models its perimeter P in terms of the length
1. 1 answer
2. asked by monic
3. 2,302 views
The volume of a cone is 190 in3. Find a function that models the height h of the cone in terms of its radius r.
1. 1 answer
2. asked by monic
3. 975 views
Two packing crates of masses m1 = 10.0 kg and m2 = 3.20 kg are connected by a light string that passes over a frictionless
1. 1 answer
2. asked by Utsa
3. 653 views
4. A football player passes the ball. The ball leaves his hand and is caught 1.7 seconds later by a receiver 30 meters away.
1. 1 answer
2. asked by Anonymous
3. 1,009 views
solve x^6 - 64 = 0
1. 5 answers
2. asked by Martha
3. 744 views
Two blocks each of mass 3.65 kg are fastened to the top of an elevator as in the figure. (a) If the elevator accelerates upward
1. 0 answers
2. asked by Anonymous
3. 433 views
The coefficient of static friction between the 2.3 kg crate and the 35.0° incline of Figure P4.47 is 0.241. What minimum force,
1. 1 answer
2. asked by Anonymous
3. 636 views
A 5.20 package slides 1.57 down a long ramp that is inclined at 13.0 below the horizontal. The coefficient of kinetic friction
1. 1 answer
2. asked by Matt
3. 515 views
So i have to answer questions from my french textbook called on y va! 1and on page 34 theres this article about microbes and 3
1. 2 answers
2. asked by Please Help ;D
3. 1,221 views
Two points P(32degree N, 47 degree W) nd Q(32degree N, 28 degree E) are on the earths surface. Find d radius of the parallel of
1. 1 answer
2. asked by Blossom
3. 418 views
A prisoner that is funny would be what periodic table element?
1. 2 answers
2. asked by ashley
3. 762 views
What data and stats do you need to know in order to identify profitable nations in which to export.
1. 0 answers
2. asked by Lisa
3. 339 views
1. He wants to be a singer in the future.2. He was a lawyer in the past. 3. He is a doctor in the present. 4. He is a doctor at
1. 1 answer
2. asked by rfvv
3. 1,187 views
In a titration of 35.00 mL of 0.737 M S, __________ mL of a 0.827 M KOH solution is required for neutralization.
1. 2 answers
2. asked by Charlie
3. 1,346 views
a bomb of mass 5 kg explodes in to two equel fragments. At what angle these fragment fly apart ?
1. 1 answer
2. asked by an
3. 604 views
In a titration of 35.00 mL of 0.737 M S, __________ mL of a 0.827 M KOH solution is required for neutralization.
1. 1 answer
2. asked by Charlie
3. 668 views
If motion of a particle of mass (m) is given by y=ut+1/2gt^2 (square).find force acting on it
1. 4 answers
2. asked by an
3. 2,639 views
why is two hundredths written as 1.02 and not as 1.2?
1. 1 answer
2. asked by tameka
3. 1,064 views
Which sentence is correct?Select one of the options below as your answer: A. One can never have two many friends. B. One can
1. 1 answer
2. asked by nick
3. 538 views
The owner of a horse stable wishes to set up 4 rectangular corrals of identical dimensions along the back wall of an existing
1. 1 answer
2. asked by Cole
3. 569 views
Which of the following groups benefitted the least from the prosperity of the second industrial revolution?
1. 1 answer
2. asked by Anonymous
3. 405 views
state the application of theory and design consideration of turnig
1. 0 answers
2. asked by fatin
3. 327 views
Write the complete ionic equation for Cu(NO3(aq)+K2S(aq)and namd write the formula for the spectator ions in this reaction? This
1. 3 answers
2. asked by Amanda
3. 7,646 views
What two conditions necessary for molecules to be polar? Her's my answer pls check.First, at least one covalent bond in the
1. 1 answer
2. asked by shay
3. 5,641 views
A certain computer can perform 105 calculations per second. How many calculations can it perform in 10 seconds?
1. 8 answers
2. asked by Kate
3. 1,116 views
here is a math trick i.e,45-45=45.how is that explain me
1. 1 answer
2. asked by nanbala
3. 440 views
In need of help,Who Did Alfred T Mahan Look Up To As A Child?
1. 1 answer
2. asked by Jon B
3. 562 views
A 0.73 kg ball is thrown straight up with an initial velocity of 2.50 m/s. Taking the potential energy of gravity to be zero at
1. 1 answer
2. asked by nate
3. 534 views
Water has a bent molecular shape, but what if water had a linear molecular shape would the molecule be polar or non-polar?
1. 2 answers
2. asked by lea
3. 634 views
What Did Alfred T Mahan challenges He Faced Growing Up
1. 2 answers
2. asked by Jon B
3. 1,049 views
Find the derivative of y=15x^7+7^x+22
1. 2 answers
2. asked by Jack
3. 382 views
When will hydrogen bonding occur?Give an example of liquid other than H2O in which this type of force is important.In order for
1. 2 answers
2. asked by tracy
3. 2,345 views
Fast Fact. Eight states border one or more of the five Great Lakes. Write a fraction representing the part of the 50 states that
1. 1 answer
2. asked by keem
3. 536 views
use the direct and the counterexample methods to show that these arguments are invalid? For the counterexample method, display
1. 1 answer
2. asked by marien
3. 706 views
Muriatic acid is the common name of industrial-grade hydrochloric acid (HCl). One of its uses is to clean or etch concrete in
1. 5 answers
2. asked by Amber
3. 1,232 views
Tarzan swings on a vine 6.8 m long. The tension in the vine is 1200 N if he's moving at 2.9 m/s when the vine is vertical. What
1. 1 answer
2. asked by Chelsey
3. 732 views
An object of mass 1.4kg is placed 12.0 cm from the axis of a rotating turntable of variable speed. When the speed of the
1. 1 answer
2. asked by Chelsey
3. 500 views
When you're driving your 1200-kg car, you go around a corner of radius 60.8 m. The coefficient of static friction between the
1. 1 answer
2. asked by Chelsey
3. 676 views
Original amount $ 90New amount $84.50 find the percent of increase or decrease
1. 1 answer
2. asked by Anonymous
3. 492 views
what must be added to each of the following expressions to make it a whole square(i) 4x^2 - 12x + 7 (ii) 4x^2 - 20x + 20
1. 1 answer
2. asked by TUHITUHI
3. 448 views
A 6.0 Kg object undergoes an acceleration of 2.o m/s squared. what is the magnitude of the net external force acting on it?
1. 1 answer
2. asked by ricky
3. 687 views
Integrate sinx+cosx/rootsin2x with respect to dx...plzz help me
1. 1 answer
2. asked by abhi
3. 479 views
The key to using a pedometer to meet the Physical Activity Guidelines for Americans is to _________.A. First set a time goal and
1. 2 answers
2. asked by Madison
3. 1,148 views
how long will it take a 1750-watts motor to a lift a 285-kg piano to a sixth storey window 1.6 meters above
1. 1 answer
2. asked by kyla
3. 2,349 views
If M is the mass of one body and m is the mass of another body, and their separation is d, then the gravitational force between
1. 0 answers
2. asked by Haley
3. 377 views
Integrate x^2/rootx-1..
1. 2 answers
2. asked by abhi
3. 420 views
_ _ x _ = _ _ _ = _ _ x _use number 1 - 9 using each each number only once
1. 1 answer
2. asked by AB
3. 356 views
25mL of tartaric acid solution is titrated against 31mL of NH4OH. What is the normality of the NH4OH? Please explain how to work
1. 1 answer
2. asked by Stephen
3. 515 views
Find f(x), if f(2b-1)=6b+2
1. 1 answer
2. asked by Sherina
3. 987 views
When two solutions are mixed and a new color is observed, is this color change an indication that a chemical reaction has
1. 1 answer
2. asked by chemdummy
3. 879 views
A dockworker applies a constant horizontal force of 90.0Nto a block of ice on a smooth horizontal floor. The frictional force is
1. 1 answer
2. asked by Karina
3. 946 views
one pump can empty a pool in 5 days, wheras a second pump can emtpy pool in 7 days. how long will it take the two pumps, working
1. 1 answer
2. asked by amanda
3. 647 views
A person pushes a 19.5-kg shopping cart at a constant velocity for a distance of 35.6 m on a flat horizontal surface. She pushes
1. 1 answer
2. asked by Anonymous
3. 705 views
please tell me if you agree with the following:Which Brand of popcorn hs the least amount of unpooped kernels after 3 minutes.
1. 1 answer
2. asked by lori
3. 1,187 views
1.Which of these numbers can be classified as both real and irrational? 5.858585858 63.4 square root 21 square root 36 2. Which
1. 91 answers
2. asked by Delilah
3. 15,946 views
colorless vinegar added to purple cabbage juice turns pink What is the reason behind and why is it considered a chemical change?
1. 1 answer
2. asked by chemdummy
3. 1,015 views
what is the control in the following experiment - which brand of popcorn has the least amount of un-popped kernels after 3
1. 1 answer
2. asked by Allison
3. 434 views
what is the future value of $8000 a year for 28 years at 7.5%
1. 3 answers
2. asked by james
3. 369 views
A variable-length air column is placed just below a vibrating wire that is fixed at the both ends. The length of air column open
1. 0 answers
2. asked by AJ
3. 752 views
A length of organ pipe is closed at one end.If the speed of sound is 344 m/s, what length of pipe is needed to obtain a funda-
1. 0 answers
2. asked by AJ
3. 588 views
The length of a string is 344 cm. The string is held fixed at each end. The string vibrates in two sections; i.e., the string
1. 0 answers
2. asked by AJ
3. 602 views
It asks:For each of the following atomic numbers, use the periodic table to write the formula (including the charge) for the
1. 3 answers
2. asked by Kaleen P
3. 4,712 views
The reaction2Na+ + 2Cl− ! 2Na + Cl2 is indicative of ? cell; the sign of the anode is ? ; and ? forms at the cathode. 1. an
1. 2 answers
2. asked by cheri
3. 2,981 views
To demonstrate standing waves, one end of a string is attached to a tuning fork with frequency 120 Hz. The other end of the
1. 1 answer
2. asked by AJ
3. 1,524 views
Sodium, potassium, and rubidium are good1. oxidizing agents. 2. reducing agents. 3. bases.
1. 2 answers
2. asked by cheri
3. 1,537 views
A saturated solution of which of the follow-ing substances in water would be the best conductor of electricity? 1. CH4 2. Hg2Cl2
1. 1 answer
2. asked by cheri
3. 1,647 views
Standing-wave vibrations are set up in a crystal goblet with four nodes and four antin- odes equally spaced around the 26.3 cm
1. 0 answers
2. asked by AJ
3. 430 views
The lowest A on a piano has a frequency of 27.5 Hz.Assume: The tension in the A piano wire (of length 0.51 m) is 305 N, and
1. 0 answers
2. asked by AJ
3. 758 views
A harmonic wave is traveling along a rope. It is observed that the oscillator that gener- ates the wave completes 38.9 in 27.4
1. 0 answers
2. asked by AJ
3. 417 views
What is a poor conductor of electricity?1. mercury 2. molten NaCl 3. copper 4. potassium 5. sulfur
1. 1 answer
2. asked by cheri
3. 856 views
For an electrochemical reduction process,electrons are 1. taken from solution species at the surface of the cathode. 2. added to
1. 1 answer
2. asked by cheri
3. 967 views
Chlorine, bromine, and iodine are good1. oxidizing agents. 2. reducing agents. 3. bases.
1. 1 answer
2. asked by cheri
3. 1,302 views
In a voltaic cell, electrons flow from the ?to the ? in the external circuit. 1. cathode; anode 2. products; reactants 3. anode;
1. 1 answer
2. asked by cheri
3. 969 views
A battery has two electrodes labeled anodeand cathode. Electrons flow from the (anode, cathode) to the (anode, cathode) through
1. 1 answer
2. asked by cheri
3. 830 views
Very small mercury batteries have been madeand used in a multitude of applications. Why have they been replaced by other kinds
1. 1 answer
2. asked by cheri
3. 740 views
Hi,I don't wont home made clay.we would like to use play-doh.how to use social study with play-doh.create a model of one of the
1. 1 answer
2. asked by Lakshmi
3. 527 views
I'm having trouble with this word problem. Two friends Jodi and Abe go horseback riding on the same trail in the same direction.
1. 1 answer
2. asked by kelly
3. 606 views
2. The interest on $6,000 at 6 percent compounded semiannually for 8 years is: (Use table in the handbook) (Points : 1)
1. 2 answers
2. asked by Tanisha
3. 1,687 views
why do plants grow better under certain lighting conditions than others?
1. 4 answers
2. asked by Lulu
3. 1,043 views
A circular arc has measure 22ft and is intercepted by a central angle of 27 degrees . Find the radius of the circle.
1. 1 answer
2. asked by mavis
3. 2,601 views
How does the inner core differ from the outer core?
1. 1 answer
2. asked by Tiki
3. 375 views
Potassium permanganate (KMnO4) solutions are used for the determination of iron in samples of unknown concentration. As a
1. 5 answers
2. asked by Anonymous
3. 2,648 views
if x^4 + 1/x^4 =42 .find x+1/x
1. 1 answer
2. asked by TUHITUHI
3. 278 views
x^2 + 1/x^2 = 47. find the value of x+ 1/x and x- 1/x
1. 2 answers
2. asked by TUHITUHI
3. 356 views
Identify which one of the following sentences contains an unnecessary comma. Please correct the error and explain why the
1. 3 answers
2. asked by cathy
3. 639 views

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