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Questions Asked on April 20, 2013

Consider a single photon with a wavelength of λ, a frequency of ν, and an energy of E. What is the wavelength, frequency, and
1. 3 answers
2. asked by Shai
3. 17,067 views
a 5kg block is pushed 3m up a vertical wall with constant speed by a constant force of magnitude f applied at an angle of 30
1. 3 answers
2. asked by Annette
3. 3,540 views
Two blocks of masses m1 = 2kg. and m2 = 4kg. are each released from rest at a height of h = 5m. on a frictionless track, and
1. 2 answers
2. asked by Annette
3. 3,088 views
A steel tube has an outside diameter of 15 cm, an inside diameter of 13 cm,and is 3.7 m long.What is the volume of the steel
1. 2 answers
2. asked by danny
3. 3,054 views
A real object is located at the zero end of a meter stick. A large concave mirror at the 100 cm end of the meter stick forms an
1. 1 answer
2. asked by Anonymous
3. 2,434 views
You are measuring the concentration of Fe2 in a sample by measuring the absorbance of its complex with ferroxine. Your sample,
1. 1 answer
2. asked by Shai
3. 2,352 views
4. The total value of the $1 bills and $5 bills in a cash box is $124. There are 8 more $5 bills than $1 bills. How many of each
1. 1 answer
2. asked by ki
3. 2,310 views
r=-.96 between cravings for pizza and ability to concentrate on studying
1. 1 answer
2. asked by carla
3. 2,178 views
Hello Dr.Bob. Could you check my work please? I'm not sure if I'm right in how I solved this problem.Which of the following
1. 2 answers
2. asked by Constantine
3. 2,156 views
1.Which equation represents a nonlinear function? (1 point) y = x + 7 y = 3x – 1 y = 3x2 + 1 y = x – 1/2 Is the answer "y =
1. 4 answers
2. asked by Delilah
3. 2,000 views
1. Ms.lynch has 21 coins in nickels and dimes. Their total value is $1.65. How many of each coin does she have?2. A vending
1. 2 answers
2. asked by kathryn
3. 1,633 views
For the given functions f and g, find the following and state the domain of each result.f(x)=sqrtx;g(x)=5x-9 (a) (f*g)(x)= What
1. 1 answer
2. asked by Anonymous
3. 1,594 views
what is the solid remains in lithium trioxonitrate v
1. 3 answers
2. asked by Okyere Emmanuel
3. 1,388 views
A car uses 114 g of petrol to travel one mile.Calculate the mass of carbon dioxide produced when this car travels one mile.
1. 4 answers
2. asked by Reece
3. 1,382 views
According to King, how did the Vietnam War affect U.S. policy at home?
1. 3 answers
2. asked by Brianna
3. 1,381 views
Ziegler Corporation purchased 25,000 shares of common stock of the Sherman Corporation for $40 per share on January 2, 2010.
1. 1 answer
2. asked by Andrew
3. 1,367 views
A cubic crate of side s=2.0m is top-heavy: its CG is 18cm above its true center.Part A) How steep an incline can the crate rest
1. 0 answers
2. asked by Andrew
3. 1,354 views
For questions 1 and 2, use integer values of x from –3 to 3 to graph the equation.1. y = –2x2 + 3 (1 point)
1. 9 answers
2. asked by Katter
3. 1,350 views
The second of two numbers is 7 times the first. Their sum is 72. Find the numbers.
1. 5 answers
2. asked by kathryn
3. 1,310 views
identify one environmental or human factor that causes ill health,accidents,crises and disasters within the community and
1. 19 answers
2. asked by angel grace
3. 1,301 views
Charlene made the sketch below in order to find the height x of a pole. She positioned a mirror on the ground so that she could
1. 3 answers
2. asked by Anonymous
3. 1,266 views
Find the weight to the nearest kg, of the cement block. Cement weighs 1700 kg/m3.12cm x 10cm and 40cm x 20 cm x 20cm.
1. 1 answer
2. asked by Dee
3. 1,256 views
1. Which of these is a benefit of unstructured outdoor play?A. Learning of rules B. Emotional well-being C. Video game skill D.
1. 8 answers
2. asked by Anonymous
3. 1,245 views
Complete each sentence, using a nominative pronoun. Identify how the pronoun is used in the sentence.1). Yesterday, my little
1. 5 answers
2. asked by Anonymous
3. 1,215 views
Heating an ore of antimony (Sb2S3) in the presence of iron yields antimony and iron (II) sulfide.Sb2S3 + 3 Fe = 2Sb + 3 FeS When
1. 1 answer
2. asked by Andrea
3. 1,144 views
Community organizations that are involved in supporting or giving redress to these disasters.
1. 2 answers
2. asked by Rotshidzwa
3. 1,141 views
Sam wants to build a table with that triangular top. If that tabletop has a height of 4 feet and a base of 3.5 feet, what is the
1. 1 answer
2. asked by Payden
3. 1,048 views
* JJ Thompson ** what was he credited for discovering the cathode ray tube? * How does his experiment relate to electrostatics?
1. 0 answers
2. asked by Isis
3. 1,036 views
Write the function whose graph of y=(x+4)^2, but is reflected about the y axis.y=
1. 0 answers
2. asked by Karlee
3. 1,033 views
A poll was taken of 100 students at a commuter campus to find out how they got to campus. The results were as follows:26 said
1. 0 answers
2. asked by Anonymous
3. 1,026 views
Given the following piecewise functionf(x)= {-x+1 for x < 0 {-1 for 0 ≤ x ≤ 3 {-2x for x > 3 a) Find the domain b) Find the
1. 1 answer
2. asked by Anonymous
3. 1,024 views
I'm Christian and I'm applying to a catholic high school (due to the budget cuts in my district). The thing is that I'm required
1. 2 answers
2. asked by Lauren
3. 1,015 views
combining form and suffix to form number 1 abnormal softining of a kidney
1. 1 answer
2. asked by gloria
3. 1,011 views
find an equation of the tanegent line to the curve 3xsquared + 5ysquared=8 at the point (1,1)
1. 0 answers
2. asked by Leslie
3. 979 views
Provide 5 ways in which you critically discuss how life style in the legal n illegal drugs among the youth
1. 1 answer
2. asked by prudence
3. 967 views
Complete each sentence below, using an objective pronoun. Then, tell how each pronoun is used in the sentence.1). Skipping rope
1. 5 answers
2. asked by Anonymous
3. 963 views
A die has one red face, two blue faces, and three green faces. It is rolled 5 times. Find the chance that the red face appears
1. 9 answers
2. asked by AmmanJordan
3. 961 views
Is this true?It is possible for two rectangles to have the same area without having the same perimeter??
1. 2 answers
2. asked by Tamara
3. 950 views
A 0.0583 mol sample of formaldehyde vapour, CH2O, was placed in a heated 0.359 L vessel and some of it decomposed. The reaction
1. 1 answer
2. asked by alex
3. 892 views
can you tell me how to begin a sentence with BECAUSE :eg. My sister fell down and thought she had broken her leg.she went to the
1. 3 answers
2. asked by R S Telagathoty
3. 887 views
If the sum of 3 non-zero distinct real numbers a, b and c is 2 , and the two sets {a,b,c} and {1/a ,1/b ,1/c} are the same, what
1. 0 answers
2. asked by Tony
3. 885 views
The NSC-68 documentreflected the American BeliefA.)that military spending would help the ecomony B.)that huge sacrifices would
1. 1 answer
2. asked by Kat
3. 884 views
how can you study before time for exams i am unable to do please give me study tips
1. 1 answer
2. asked by mpho
3. 874 views
What is the rotational kinetic energy of a planet about its spin axis? Model the planet as a uniform sphere of radius 6000 km,
1. 2 answers
2. asked by Anonymous
3. 856 views
Provide recommendations on how to address this enviromental problem.
1. 1 answer
2. asked by Rotshidzwa maragwana
3. 856 views
What was the future BC called in the early 1800s?What challenges did George Simpson encounter when he became governor of the HBC
1. 2 answers
2. asked by Myu
3. 842 views
Describe how a farmer would maintain a laying flock in one of the systems you have named and use these
1. 0 answers
2. asked by Rampo Dieketseng
3. 840 views
what is the change in temperature if 24g of water at 50 degrees C absorbs 985j of heat energy
1. 1 answer
2. asked by jeremy
3. 828 views
During the 1950s, the Central Intelligence Agency engineered pro-American political coups in bothA.)Iraq and Nicaragua B.)Libia
1. 1 answer
2. asked by Kat
3. 775 views
Identify and describe one environmental problem that causes ill health,accidents,crises,and disasters within your community or
1. 1 answer
2. asked by Refiloe Majafe
3. 769 views
what is 1000 [?] 81 [?] 190 = 10
1. 0 answers
2. asked by rica
3. 738 views
6. The forward motion of a space shuttle, t seconds after touchdown, is described bys(t)� = 189t − t^3 , where " is measured
1. 2 answers
2. asked by I JUST NEED TO KNOW D
3. 699 views
A capacitor of capacity C is charged fully by a cell of emf V/2 and then it isdisconnected and again connected with a cell of
1. 0 answers
2. asked by Clandestine
3. 672 views
1. the sum of 3 numbers is 207. the 2nd # is 8 times the first, while the third is 3 less than the first. find the #s.2. the
1. 1 answer
2. asked by kelly
3. 654 views
A uniform ladder of mass, m, and length, l, leans at an angle, theta, against a frictionless wall.Determine a formula for the
1. 0 answers
2. asked by Andrew
3. 652 views
A child’s kite is on top of a straight pine tree. A ladder is placed against the tree and touches the kite. The ladder forms a
1. 1 answer
2. asked by Tom
3. 645 views
A hockey puck of mass .2kg is sliding down an inclined plane with an angle of 15 degrees to the horizon. If the puck is moving
1. 1 answer
2. asked by Cassie
3. 631 views
There are 100 runners, each given a distinct bib labeled 1 to 100. What is the most number of runners that we could arrange in a
1. 7 answers
2. asked by Stranger
3. 623 views
How many grams of NaCl must be added to 225.0 gof H2O at 45 °C to lower the vapor pressure of water by 2.21 mmHg? The vapor
1. 1 answer
2. asked by Kelly
3. 619 views
Is there any online COOP exam I can practice to pass that COOP exam I'm taking (I'm applying to catholic high school. It's a
1. 3 answers
2. asked by Laruen
3. 618 views
The size to which a pumpkin grows while on the vine is probably problematic, as our current visiting POLY pumpkins demonstrate.W
1. 1 answer
2. asked by Tho
3. 605 views
Find the specified value of the following functions and state the domain of each one.f(x)=x-11;g(x)=7x^2 (a) (f+g)(5)=
1. 1 answer
2. asked by Hannah
3. 604 views
Hello Dr.Bob. Could you please take a look at the following question? I know the correct answer for it, but I'm not sure how to
1. 1 answer
2. asked by Constantine
3. 602 views
reaction of benzoic acid with propylamine. if there no reaction why
1. 0 answers
2. asked by felice
3. 597 views
A large 61.0 kg board is propped at a 45 degree angle against the edge of a barn door 2.9m wide.How great a horizontal force
1. 0 answers
2. asked by Andrew
3. 580 views
A 3 cm flower is placed 40 cm from a converging lens with a focal length of 15 cm. What are the orientation, size and type of
1. 1 answer
2. asked by Jesha
3. 577 views
(a) One such reaction fuses two nuclei of carbon-12 (12/6C ) to form an atomof neon (20/10Ne ) with the emission of an
1. 0 answers
2. asked by john ergent help pleaseeeeeeeeeeeeeeeeeee?
3. 559 views
Calculate the mass of water in kg and tonne contained in a rectangular tank with the following dimensions: width of 3.2000
1. 1 answer
2. asked by Danny
3. 552 views
How many mL of 0.100M HCl are needed to neutralize 49.0mL of 0.104M Ba(OH)2 solution?
1. 1 answer
2. asked by Rochele
3. 552 views
A researcher asks participants to sample tap water and bottled water. out of 40 people, 28 selected bottled water. was the
1. 1 answer
2. asked by Anonymous
3. 546 views
I have to compute the determinant of the matrix without using a calculator. If the determinant is zero, write singular matrix.1
1. 0 answers
2. asked by Josh
3. 532 views
This has to do with vectors...I'm wondering if I set up the diagram correctly?A plane has a speed of 250mph and flies with a
1. 3 answers
2. asked by Mary
3. 530 views
If 10.4 liters of O2 at STP are produced by the electrolysis of water, how many coulombs of charge were required?
1. 3 answers
2. asked by sarah
3. 530 views
How would I solve this:Mr. Merrill has 3 times as many nickels as dimes. The coins have a total of $1.50. How many of each coin
1. 3 answers
2. asked by katy
3. 526 views
a flower floats on the surface of lake water. its level above the lake surface is 5.5 cm. then a sudden gust of wind comes and
1. 1 answer
2. asked by shield
3. 524 views
A circle of radius 1 is drawn in the plane. Four non-overlapping circles each of radius 1, are drawn (externally) tangential to
1. 0 answers
2. asked by Anonymous
3. 524 views
In return for the old American destroyers, the British gave the USAA.) six air bases in Scotland and Iceland. B.) a role in
1. 1 answer
2. asked by Kat
3. 523 views
The cannonball is fired at a speed of 45 and an angle of 35 . A cannonball that was accidentally dropped from the top of the
1. 2 answers
2. asked by jeff
3. 521 views
Critically discuss 6 Ways in which the drought can impact negatively in one's health
1. 1 answer
2. asked by ndumiso
3. 520 views
An alloy contains 39.5 mass% silver (Ag) and has density og 7.86 g/ml What volume of alloy would be needed to contain 12.0g of
1. 1 answer
2. asked by Chad
3. 518 views
Ms Perez owns 2 properties in different towns. The 1st property is assessed at $125,000 and has a tax rate of $6.35 per 1000
1. 1 answer
2. asked by Jane
3. 507 views
Identify and describe one environmental problem that causes ill health,accidents,crises,and disasters within your community or
1. 1 answer
2. asked by Refiloe Majafe
3. 502 views
* JJ Thomson *a) How does his experiment of cathode ray tube relates to electrostatics? >> PLEASE HELP ME!! :( :)
1. 1 answer
2. asked by Isis
3. 497 views
some 24% of the men compared to 62% of the women responded yes suppose that 150 women and 200 men were interviewed construct a
1. 1 answer
2. asked by jim
3. 496 views
Identify and describe 3 environmental health that cause ill health, crises and or disaster within your community or any any
1. 1 answer
2. asked by surprise
3. 480 views
Explain why academic and professional research must use credible sources.
1. 1 answer
2. asked by mary
3. 469 views
To get an A grade on the test, you need a total score of more than 16 points. One of the students knows the correct answer to 6
1. 0 answers
2. asked by AmmanJordan
3. 466 views
Jay has an annual income of $50,000. He would qualify for a $__________ monthly payment for housing + other long-term debt on an
1. 1 answer
2. asked by tmouery
3. 465 views
Explain how market research helps producers maximize profits
1. 0 answers
2. asked by Layla Pearson
3. 464 views
Find the total surface area of a closed cylinder having a diameter of 1.000 m and 15.000 mm and a length of 12.000 m and 55.000
1. 1 answer
2. asked by Danny
3. 462 views
What was the future BC called in the early 1800s?What challenges did George Simpson encounter when he became governor of the HBC
1. 0 answers
2. asked by Myu
3. 462 views
solve the equation step by step list each step along with the property you used during that step -5*1*11*4
1. 0 answers
2. asked by amanda
3. 458 views
What are the important features of a building which could be used as a milking shed(parlour),dairy(milk room)and food store to
1. 1 answer
2. asked by Rampo Dieketseng
3. 457 views
Describe how a farmer would maintain a laying flock in one of the systems you have named and use these
1. 1 answer
2. asked by Rampo Dieketseng
3. 456 views
A marathon runner will burn 1.25x10^7 j during a race. If the calorie content of 12.0 oz. of Gatorade is 80.0 kilocalories, how
1. 1 answer
2. asked by Chad
3. 451 views
What are human/environmental problems impacts on the community
1. 1 answer
2. asked by Collen
3. 446 views
At high temperature, 2.00 mol of CH2O was placed in a 4.00 L container where it decomposed via the equilibrium
1. 1 answer
2. asked by alex
3. 431 views
Critically discuss 5 ways in which the human envornmental(smoking)problem impacts on the community.provide relevant sources to
1. 1 answer
2. asked by Gugu
3. 430 views
In two successive chess moves, a player first moves his queen four squares forward, then moves the queen three steps to the left
1. 0 answers
2. asked by bill
3. 418 views
I will call you before i leave for station.Leave only after i call. ans : If I do not ... ... .... .... ... .... . will you
1. 1 answer
2. asked by R S Telagathoty
3. 414 views

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