Friday

August 26, 2016
Total # Posts: 901

**chemistry**

if a hydrogen atom absorbs a photon containing 4.8x10^-19 j of energy, what component of the atom experienced an increase in energy?
*November 9, 2013*

**math**

50 is 6.25% of what number?
*November 1, 2013*

**math**

about 16 or 17
*November 1, 2013*

**math**

Alice plays basketball. In one game she shoots 23 free throws and makes 81.25% of theme. Estimate how many free throws she makes.
*November 1, 2013*

**chemistry**

Balance these nuclear equations. Can some please help I dont understand these at all 1. 35/17 Cl + 1n -> 35/16S + _____ 2. 229/90 Th -> 4/2 He + ______ 3. 20/8 O -> 20/9F + ________ 4. 54/26Fe + 1n -> 1H + _______ 5. 104/47Ag -> 0/-1e + ______ 6. ________ + 0/-...
*October 25, 2013*

**books (death of a salesman)**

Which of the brothers will lead a more satisfying life, Happy or Biff?
*October 21, 2013*

**books (Death of a Salesman)**

Is Linda responsible for Willy's failure and suicide? Please help and thank you! any helpful sites that help answer this question will also be appreciated
*October 20, 2013*

**math**

If the marks obtained by students in an examination and the weightage for the different subjects are given in the figure. What is the value of the weighted average? PICK 70 77.3 75 80
*October 16, 2013*

**Grammar**

... if u HAVE recieved ...
*October 11, 2013*

**Practical English**

Hi Ms. Sue is #6 D? i stuck on this question and after 20 mins i think i came up with the answer?
*October 7, 2013*

**physics**

A 4.00 bucket of water is accelerated upward by a cord of negligible mass whose breaking strength is 78.0 . If the bucket starts from rest, what is the minimum time required to raise the bucket a vertical distance of 10.0 without breaking the cord?
*October 4, 2013*

**physics**

thank you
*October 4, 2013*

**physics**

The froghopper (Philaenus spumarius), the champion leaper of the insect world, has a mass of 12.3mg and leaves the ground (in the most energetic jumps) at 4.00m/s from a vertical start. The jump itself lasts a mere 1.00ms before the insect is clear of the ground. (a) find the ...
*October 4, 2013*

**physics**

The position of a 2.75×10^5 N training helicopter under test is given by r =(0.020m/s 3 )t^3 i ^ +(2.2m/s)tj ^ −(0.060m/s 2 )t^2 k ^. find the net force of the helicopter at t=5.0s
*October 4, 2013*

**physics**

A 4.00kg kg bucket of water is accelerated upward by a cord of negligible mass whose breaking strength is 73.0N N .
*October 4, 2013*

**Math **

Not good with estimate here the question 24678 divided by 83
*October 1, 2013*

**Media**

Can you help me reword these media paragraphs to an A* standard please?
*September 30, 2013*

**physics **

A model rocket is launched straight upward with an initial speed of 51.3 m/s. It accelerates with a constant upward acceleration of 1.82 m/s2 until its engines stop at an altitude of 150 m. What is the maximum height reached by the rocket?
*September 19, 2013*

**y=mx+b**

how to solve we solve those types of problems
*September 16, 2013*

**Math**

Amber is 5'4 inches tall. How many inches tall is amber
*August 26, 2013*

**math**

find the domain, target, and rule of the inverse functions: 1. f(x)=(x+3)/(5x+2) 2. g(x)=1/square root of 2x-1
*July 28, 2013*

**Math**

thank you, makes more sense, i thought it was supposed to look like that but its just worded poorly, and the vertical plane got me confused.
*July 21, 2013*

**Math**

From an observation tower that overlooks a runway, the angles of depression of point A, on one side of the runway, and point B, on the opposite side of the runway are, 6 degrees and 13 degrees, respectively. The points and the tower are in the same vertical plane and the ...
*July 21, 2013*

**Finance**

One way to think about the required rate of return is: as the highest return a risk-averse investor wants from an investment. as the risk-free rate of return plus a risk premium. as the historical rate of return plus a risk premium. as a comparison between the expected and ...
*July 21, 2013*

**Math**

Given the points A(0,0), B(4, 3) and C(2,9), what is the measure of angle ABC? Using Law of Cosines.
*July 21, 2013*

**marleting**

which of the following trends is causing marketers to place more emphasis on competitive differention
*July 19, 2013*

**American Literature**

that they cant speak good english
*July 15, 2013*

**Math**

Convert each improper mixed number to a whole number or a mixed number: (A) 24 2/2 (b) 7 4/2 (c) 2 5/3 (d) 9 5/4 (E) 36 3/2 (f) 32 4/3 (g) 3 3/3 (h) 10 8/8
*July 11, 2013*

**Math**

(860+95)/11595= .0823630875 *100= 8.236
*July 5, 2013*

**world history**

mesopotamai
*June 6, 2013*

**Chemistry**

I see it mainly deals with Ionic compounds correct? MgCL2 is two because when it is separated it makes 3 moles of MgCl2 for every one mole of MgCl2?
*May 23, 2013*

**Chemistry**

Thank You Dr.Bob. I have one more question, how exactly do you is "i" 3? is it a given?
*May 23, 2013*

**Chemistry**

40.0 g of magnesium chloride (MgCl2) in 250.0 g of water at 22 °C.Calculate a) the vapor pressure of this solution, b) the freezing point, c) the boiling point. I know it is something like this, but I continue to get the incorrect answer. A) 40.og Mgcl2*(1mol mgcl2/ 95.2 ...
*May 23, 2013*

**english**

Outdoor and on-the-road eating increases the number of vacationing people stricken by food poisoning. restate key idea
*April 30, 2013*

**Math**

Tammy drew a scale drawing of a house. The scale she used was 14 millimeters = 5 meters. The actual length of the garage is 15 meters. How long is the garage in the drawing?
*April 25, 2013*

**UL Lafayette**

Suppose that 2000 is loaned at a rate of 9% , compounded monthly. Assuming that no payments are made, find the amount owed after 4 years.
*April 23, 2013*

**physics**

A technician at the top of a 200m tall radio tower drops her hammer. how much time does it take for the hammer to strike the ground?
*April 12, 2013*

**Math**

50 divided by 100 mmultiple by 85= $42.50
*April 2, 2013*

**math**

$11000
*April 2, 2013*

**math**

find the ratio of the circumference 44ft to the diameter 14ft of a circle. write answer as a fraction in simplest form
*April 2, 2013*

**business**

giving larger increases to high-performance employees.
*March 30, 2013*

**No**

no
*March 18, 2013*

**math 7**

How many different ways can you choose 3 vowels out of the box, if there are 5 vowels in the box and order does not matter.
*March 15, 2013*

**english**

thanks so much for your help Ms. Sue
*March 14, 2013*

**english**

3. rodeo would be the e and the o 4. medium would be the I and the u 5 beach the e and the a 6 duo the u and the o 7 stadium the I and the u 8 video the e and the o. I really am having problems understanding this.
*March 14, 2013*

**english**

circle the words with two vowels together where each vowel has a separate vowel sound, then under line the letters that stand for the two different vowel sounds. 2. audio, faith, search. 3. greed, journal, rodeo 4. either, medium, southern. 5 beach, pound, pioneer 6. duo, ...
*March 14, 2013*

**english**

Circle the word with two vowels together where each vowel has a separate vowel sound. Then underline the letters that stand for the two different vowel sounds. 1 clean, paint, patio
*March 14, 2013*

**math**

idk
*March 13, 2013*

**Biology**

1) What memory system is sensation responsible for? Sensory, short term or long term memory system? Explain. 2) How does encoding memories relate to transfer appropriate processing and fluid intelligence?
*February 22, 2013*

**Math**

If someone deposit $400 after 2 years how much interest will they earn
*February 22, 2013*

**Psychology/Biology Help!!**

1) What memory system is sensation responsible for? Sensory, short term or long term memory system? Explain. 2) How does encoding memories relate to transfer appropriate processing and fluid intelligence?
*February 21, 2013*

**math**

26/48-19/100
*February 13, 2013*

**english**

after so many years of (strife strand)-in business, politics, and the family-he wants only to retire to the peace and quiet of his ranch. strife? we should respect our national leaders,but we should not (idolize discredit) them and assume they can do no wrong. idolize?
*February 7, 2013*

**Physics**

An object of mass M is used to provide tension in a 4.5 m long string that has a mass of 0.252 kg. A standing wave that has a wavelength equal to 1.5 m is produced by a source that vibrates at 30 Hz. Calculate the value of M
*February 3, 2013*

**math please**

The curtis car traveled an average of 21 miles per gallon of gas. At that rate, how far could the car travel on a full tank of 21gallons
*January 28, 2013*

**math help**

Ok well cn yu help me then
*January 28, 2013*

**math help**

Yeh I wasn't being rude I was saying was on my mind n I'm sorry but it supose to be a homework help n it doesn't matter whether yu post lots of question or not they supose to help me
*January 28, 2013*

**Physics**

A small object, which has a charge q = 6.7 µC and mass m = 9.60 10-5 kg, is placed in a constant electric field. Starting from rest, the object accelerates to a speed of 2.06 103 m/s in a time of 1.03 s. Determine the magnitude of the electric field. Answer in N/C
*January 28, 2013*

**Physics**

Two charges are placed on the x axis. One of the charges (q1 = +9.3 µC) is at x1 = +3.4 cm and the other (q2 = -20 µC) is at x2 = +8.9 cm. (a) Find the net electric field (magnitude and direction) at x = 0 cm. (Use the sign of your answer to indicate the direction ...
*January 28, 2013*

**Physics**

An electron is released from rest at the negative plate of a parallel plate capacitor. The charge per unit area on each plate is σ = 1.67 10-7 C/m2, and the plate separation is 1.35 10-2 m. How fast is the electron moving just before it reaches the positive plate? Answer ...
*January 28, 2013*

**Physics**

A spring with an unstrained length of 0.076 m and a spring constant of 2.6 N/m hangs vertically downward from the ceiling. A uniform electric field directed vertically upward fills the region containing the spring. A sphere with a mass of 5.09 10-3 kg and a net charge of +6.5...
*January 28, 2013*

**Physics**

You hold an inflated balloon over a hot air vent in your house and watch it slowly expand. You then remove it and let it cool back to room temperature. During the expansion, which was larger: the heat added to the balloon or the work done by the air inside? explain. (assume ...
*January 25, 2013*

**Physics conceptual**

You hold an inflated balloon over a hot air vent in your house and watch it slowly expand. You then remove it and let it cool back to room temperature. During the expansion, which was larger: the heat added to the balloon or the work done by the air inside? explain. (assume ...
*January 25, 2013*

**Math**

I need help finding discounts and sales tax.Please write out the steps so I fully can undestand the concept Thank You!!
*January 22, 2013*

**math**

Write 3,600,000,000 in scientific notation
*January 10, 2013*

**math**

How far will a migrating duck fly in 7 hours at an average speed of 21 miles per hour
*January 10, 2013*

**math**

The ratio of lefthanded to righthanded students in the school was 3 to 14. If the total number in both categories was 714, how many righthanded students were in the school
*January 10, 2013*

**math**

The average of three number is 3. If the greatest is 4.6 and the least is 1.4 what is the third number
*January 10, 2013*

**math**

Maria ran 4 laps of the track at the same pace. If it took 4 1/2 minutes to run the first 3 laps how long did it take her to run all 4 laps
*January 10, 2013*

**math**

divide as indicated: 0.01 divideby (o.o1 divide 0.001)
*January 7, 2013*

**math**

4 1/3-(2 1/3*1 1/12)=
*January 7, 2013*

**math**

2gal 2qt 2pt-1gal 3qt 1pt 2oz=
*January 7, 2013*

**math**

evaulate: ab-a+bc if a=4 b=2 and c=3
*January 7, 2013*

**math**

p-1/2=1/3
*January 7, 2013*

**math**

evaluate: ab-a+bc if a=4, b=2 and c=3
*January 7, 2013*

**math**

what number is 3/5 of 6
*January 7, 2013*

**math**

the jenkins started their trip with a full tank of gas and 48,961 miles on their car.They stopped and filled the gas tank seven hours later with 14.0 gallons of gas.At that time the car total mileage was 49,381. The jenkins car traveled an average of how many miles per gallon ...
*January 7, 2013*

**math**

the ratio of cetaceans to fish in the harbor was 3 to 13. how many fish were in the harbor if there were 390 cetaceans
*January 7, 2013*

**math**

the jenkins started their trip with a full tank of gas and 48,961 miles on their car.They stopped and filled the gas tank seven hours later with 14.0 gallons of gas.At that time the car total mileage was 49,381. what was the car average speed in miles per hour for the first ...
*January 7, 2013*

**math**

at 9:00 am Marsha found a parking meter that still had 5 minute until it expired.she quickly put a quarter, 1 dime, and a nickel into the meter and went to her meter and went to her meeting.If 5 cent buys 15 minute of parking time at what time will the meter expire
*January 7, 2013*

**math**

multiply as indicated: 8.6*5 1/4 (decimal)
*January 7, 2013*

**math**

8.6* 5 1/4 (decimal)
*January 7, 2013*

**math**

solve: 5n=32
*January 7, 2013*

**math**

evaluate: ab-(a-b) if a=0.5 and b=0.4
*January 7, 2013*

**math**

simplify: (-6)+(-3)-(-1)-(+4)=
*January 7, 2013*

**math**

replace the circle with the proper comparison symbol 3-5 3+(-5)
*January 7, 2013*

**math**

3/5
*January 7, 2013*

**math**

draw a diagram of this statement. three fifths of the baker 60 cookies were chocolate cookies (a) how many of the baker cookies were chocolate? (b) what percent of the bakers cookies were not chocolate cookies
*January 7, 2013*

**math**

if the product of six tenths and three tenths is subtracted from the sum of two tenths and four tenths. what is the difference
*January 7, 2013*

**math **

pistachios were priced at 3 pounds for 6.99 (A)what was the price per pound (B) how much would 10 pounds of pistachios cost
*January 7, 2013*

**math**

it was 96 kilometers from Perry to medford. David raced to Medford and idled back.If the round trip took 8 hours what was his average speed in kilometers per hour
*January 7, 2013*

**This needs tobe turned in in 10min AT MOST URGENT!**

so... 1-C 2-A 3-C 4-B 5-D?
*December 21, 2012*

**psychology**

Which of the following individuals was instrumental in the early research examining fitness levels in depressed patients? A. Robert Cattell B. William Morgan C. Hans Selye D. James Blumenthal
*December 10, 2012*

**ICP**

Mike is swinging at the playground. At one point, he is moving at 2 m/s. His mass is 72 kg, and he is 0.6 m off the ground. What is his mechanical energy?
*December 7, 2012*

**Science**

The ripples in a certain groove 12.7 cm from the center of a 33-rpm phonograph record have a wavelength of 1.75 mm. What will be the frequency of the sound emitted?
*November 29, 2012*

**math2**

how to solve 2[5a-3(4a-b)]-4[8b+5(a-2b)]
*November 20, 2012*

**math**

9p+q+6p+5q+5p-5q
*November 14, 2012*

**Physics**

Two long straight wires are perpendicular to the page and located at distances d1 = 2 cm and d2 = 3.5 cm from the origin. Wire 1 carries current 5 A out of the page. If the net magnetic field due to the two currents is at an angle of 45 degrees to the x-axis at the origin, ...
*November 12, 2012*