Sunday
September 21, 2014

Posts by Pete


Total # Posts: 160

English
What is the subject and subject complements of this sentence "Lack of water and wood remained a problem for Europeans." Is it lack and problem
September 15, 2014

physics
The edges of a shoebox are measured to be 11.9 cm, 17.3 cm, and 29 cm. Determine the volume of the box retaining the proper number of significant figures in your answer.
September 3, 2014

Pre- Algebra
12.
September 3, 2014

statistics
Between 50 and 80 people are hired on a ship. 75% speak English only and 25% speak German only. What is the mean number of people that speak English only? Can this even be calculated?
June 3, 2014

Writing
Thank you.
May 21, 2014

Writing
Is the answer B?
May 21, 2014

Writing
13. Which of the following is a complex sentence? A. I would like to visit the Kinshasa, but I understand the city is unsafe for foreigners. B. As Jake was reading the letter from June yet again, the flight attendant coughed gently to get his attention. C. I simply cannot make...
May 21, 2014

Physical Science
0.25kcal/kg-C
March 17, 2014

physics
Two hockey players strike a puck of mass 0.159 kg with their sticks simultaneously, exerting forces of 1.30 103 N, directed west, and 9.90 102 N, directed 30.0° east of north. Find the instantaneous acceleration of the puck.
February 13, 2014

PHYSICS(help)
@some0ne If the spring force and the friction force are equal and opposite, what is the net force? @Roy "How do we deduce how far back the block moves with the energy difference obtained?" The friction is a function of distance. On the way from x to x1, a certain ...
January 10, 2014

PHYSICS(help)
(b) Asha - why did you divide by 2? Think about what a "period" of oscillation is. Leave the physics and maths to one side for a second. How is a "period" defined? Visualise it. For our motion from x to x1, how much of a period is that? (c) I got a ...
January 10, 2014

chemistry
(111) plane wavelengt ambda= 3.091 A lattice constant is alpha = 3.53 A
October 30, 2013

chemistry
Your x-ray lab has a monochromator consisting of a single crystal of nickel cut so that the plane lies in the cube face. At what angle (in degrees) should the cube face be tilted with respect to the incident beam in order to select radiation with a wavelength ? The lattice ...
October 30, 2013

math
Mr Ernst leaves home at noon, traveling at 50 mph. His loving wife leaves at 1 pm with a briefcase that Mr. Ernst forgot. How fast must his wife drive to catch him by 5 pm?
September 16, 2013

Math
Thanks
July 17, 2013

Math
Whats the monthly principal and interest payment for a mortgage with a financed amount of $81,000 at 9% for 25 years?
July 17, 2013

Physics
Calculate the resistance of 80 metres of copper wire, with a c.s.a. of 0.5mm2, given its resistivity of 1.72 x 10^-6 ohms per metre, Note, the area of the wire must be expressed as a portion of its base unit of measurement, which is the square metre.
June 10, 2013

Physics
Suppose that you are using a multimeter on the OHMS scale to test a capacitor and the meter reads zero. What condition of the capacitor does this indicate?
June 10, 2013

fire science
A compartment measures 14 feet wide, 12 feet long and 8 feet high, lined with ½ inch sheetrock and has a standard 36 inch by 80 inch door. What HRR is required for flashover?
May 30, 2013

Physics
A fuel has heat of combustion equal to 30 kJ / g. How much energy is released when 5 kilograms are oxidized?
May 30, 2013

Physics
A compartment measures 3.5 meters by 5.5 meters and is 3 meters high. A fire raises the temperature from 68of to 1500 of. If the starting pressure was 1 atmosphere, what volume is present at the elevated temperature assuming the compartment has openings to reduce pressure?
May 30, 2013

Physics
A compartment measures 3 meters by 5 meters and is 2.8 meters high. A fire raises the temperature from 20oC to 1000 oC. If the starting pressure was 1 atmosphere, what pressure is present at the elevated temperature assuming the compartment remains closed?
May 30, 2013

Writing skills 1
adjective
May 9, 2013

Math
Sales tax an item that cost $3.00 + tax rate is 6%
May 3, 2013

Math
Find the sum of all integers c, such that for some integers a and b satisfying a<b<c, a(b−c)^4+b(c−a)^4+c(a−b)^4=836
April 30, 2013

health
Bones contain more ________ than any other organ. A. Calcium B. Vitamin C C. Phosphate D. Iron
April 18, 2013

physics
On Mars, the acceleration due to gravity is 3.71 m/s2. How far would a rock fall in 3 s if you dropped it on Mars?
January 30, 2013

Algrbra
A certain paperback sells for $12. The author is paid royalties of 11% on the first 10,000 copies sold, 12.5% on the next 5000 copies, and 18% on any additional copies. Find a piecewise-defined function R that specifies the total royalties if x copies are sold. Please help me ...
October 24, 2012

math
I agree with Sneha and Ms. Sue
September 24, 2012

math
Robert planted pumpkins to sell. Their garden has 5 sides. 5 feet 8 inches, 7 feet 8 inches, 10 feet 3 inches, 7 feet 5 inches, 7 feet 11 inches. What is the perimeter of their garden?
September 23, 2012

Chemistry
Calculate the velocity of a rock that weighs 48 grams dropped from a height of 355 meters, gravity 9.8
August 24, 2012

pre-calc
jessica is standing 2 miles from the center of the base of pikes peak and looking at the summit of the mountain which is 1.4 miles from the base, what angle of elevation is jessica looking at the summit of the mountain?
August 16, 2012

nuclear
In the start of the equation .. for In(No/N) I understand the No/N is the percentage that the sample is of carbon 14 compared to a living sample, but how do you get the In ? where does it come from ?
May 28, 2012

nuclear
Is that 0.693/ t 1/2 0.693 over t one half ?
May 28, 2012

nuclear
Calculate the age of a plant sample that shows about one-eighth of the carbon 14 of a living sample. The half-life of carbon-14 is about 5760 a. Help please...
May 28, 2012

Math
heather has $2.50 in nickels, dimes, and quarters. she has 3 times as many nickels as dimes and four times as many quaters as dimes
February 22, 2012

Physics
Find the current in the 10.0 resistor in the drawing (V1 = 20.0 V and R1 = 15.0 )..?
January 22, 2012

human religions
Can you provide any examples of how some religions combine their religious practices?
January 10, 2012

human religions
what effect do you think the “combining of religious practices” will have on the future of organized religion?
January 10, 2012

physics
A toboggan of mass 8.4 is moving horizontally at 18 . As it passes under a tree, 18 of snow drop onto it. We're covering Momentum and collisions, and I have no idea where to start here.
December 1, 2011

physics
A toboggan of mass 8.4 is moving horizontally at 18 . As it passes under a tree, 18 of snow drop onto it. We're covering Momentum and collisions, and I have no idea where to start here.
December 1, 2011

Chemistry
Balance: NH3 + [Cd(NH3)4] > Cd2+ + NH4+
October 12, 2011

probabilities
The proportion of red marbels in a large jar of red and black marbels is 0.4 and the percentage of damaged red and black marbels is 0.7. What is the probability of selecting randomly a black and damaged marbel? If you randomly select three marbels, what is the probability of ...
October 3, 2011

Physics
A fire helicopter carries a 555 kg empty water bucket at the end of a cable 20.9 m long. As the aircraft flies back from a fire at a constant speed of 38.4 m/s, the cable makes an angle of 38.3° with respect to the vertical. A) After filling the bucket with sea water, the...
September 28, 2011

america past and present
philosophies of religion
September 26, 2011

Math
Mr. Smith bought shoes for $ 120 and a suit for $ 340. Find the total cost including tax if the tax rate is 5.5%. (a)$485.30 (b)$48.53 (c)$ 358.70 (d)$460 (e)$406
September 15, 2011

Psychology
Like the popular belief that older adults do poorer in schools than their younger counterparts, the midlife crisis___________________. 1.is more accurate when describing an older population. 2.is more accurate when describing adolescents. 3.occurs more often among men. 4.is ...
July 31, 2011

PS
Does it look to you like Aristotle ever performed any actual experiments with falling objects? Explain your answer, based upon your observations from this lab .
June 7, 2011

P.S.
A ball was dropped off a cliff and took 3.09 s to fall to the water below. Neglecting air resistance, how far (in meters) did it fall? (How far is it down to the water?)
June 7, 2011

physical science
A ball was dropped off a cliff and took 3.09 s to fall to the water below. Neglecting air resistance, how fast (in m/s) was the ball moving just as it hit the water
June 7, 2011

physical science
If a ball is thrown straight up at a speed of 27.8 m/s, how long (in seconds) will it continue to rise before it starts to fall back down
June 7, 2011

physics
if a van has a package in the back and is traveling 55 miles and hour is in a head on collision with a vehicle also traveling 55 miles an hour how fast is the package in the back of the van going to hit the driver in the back
May 11, 2011

computer science
to write a report on Object-Oriented Systems. The report should focus on the following systems including definition, applications, and advantages and disadvantages. • Object-oriented Systems • Object-oriented database • Object-oriented data modeling • ...
April 26, 2011

science
what are some positve things about cane toads
April 16, 2011

English
I'm not sure because it is the name of the beetle.
April 13, 2011

English
Ok so just capitalization every Bess Beetle in my paper.
April 13, 2011

English
The teacher will show the students a picture of a bess beetle with all the parts labeled. Does bess need to be Bess? I used bess beetle through my whole paper not sure when to capitalization bess.
April 13, 2011

English
The student will Sorry cut off the first part of the sentece. Thanks for the help
April 10, 2011

English
Will write a paragraph of what they think is the best defense mechanism of the Bess beetle and why. Is this sentece correct or should Bess be lower case?
April 10, 2011

English
I went to parent-teacher conferences, and it was not what I expected. I have learned that at parent-teacher conferences not all the parents show up. Are those sentences correct?
April 2, 2011

social studies
The American Civil War 1861–1865
April 2, 2011

English
Never mind about the first sentence I got the answer. I just need help with the second sentence. I missed spelled everyone in the second sentence.
April 1, 2011

English
I did not realize how important it was to collaborate with the staff at school, such as janitors, until I need them in my room. Teachers have so many responsibilities, and for that reason, it is beneficial for evryone to have as much help as possible. Are this sentences ...
April 1, 2011

English
Thank you
April 1, 2011

English
Okay It took me a while to meet my communication goals because Mrs. Step was not there for a while. Now is the sentence correct?
April 1, 2011

English
It took me a while to meet my communication goals, because Mrs. step was not their for a while. Does this sentence need the comma before because?
April 1, 2011

English
THANK you I did put the comma before responsibilites.
March 29, 2011

English
Thanks
March 29, 2011

English
A teacher has so many things that they are responsible for and for that reason; it is beneficial for everyone to have as much help as possible. Is this sentence correct or should it be a comma after reason?
March 29, 2011

Critical Thinking
Which of the following illustrates the key difference between subjective and non-subjective issues?
March 27, 2011

English
Sorry did not mean to post it twice
March 3, 2011

English
Which way is better? This is for a paper.
March 3, 2011

English
The students are not so talkative in their new seats, but, they still work well in groups. The students are not so talkative in their new seats, but they still work well in groups. Which way is correct?
March 3, 2011

English
I wanted to clean the desk, because there was no room for anything on it. I, also, wanted to clean it because when papers where put down on the desk you could not find them later that day. Are these two sentences correct? Do you also put commas saying I, also, I'm not sure...
March 3, 2011

English
Never mind I figured it out. THanks
February 27, 2011

English
I learned that handling behavior in a science lab is easy to do as long as the ground rules have been laid out for the students. Is this sentence correct?
February 27, 2011

English
thank you this is the whole paragraph I helped a student with his sand lab because he did not have a partner. I helped him find different objects in the sand. I also showed him that switch the magnification will show different images. After we had done two types of sand ...
February 27, 2011

English
After we did two types of sand together, he did the rest on his own. or After we had done two types of sand together, he did the rest on his own. Which one is correct?
February 27, 2011

English
I need the vocab word for the following definiton: Unrealistic devices or procedures that the audience agrees to accept (ex: aside).
February 27, 2011

english
in tragedy vocabulary. I need the word for the following definition. a device where by the audience or reader understands more of a situation or of what is being said than a character is aware of.
February 27, 2011

physics
How long would a 150 W lightbulb have to glow to produce the same amount of energy expended by Georgie? Answer in units of s.
February 23, 2011

physics
A lawn roller is rolled across a lawn by a force of 109 N along the direction of the handle, which is 24.2 above the horizontal. If the lawn roller develops 66.1 W of power for 64 s, what distance is the roller pushed? Answer in units of m.
February 23, 2011

physics
A lawn roller is rolled across a lawn by a force of 109 N along the direction of the handle, which is 24.2 above the horizontal. If the lawn roller develops 66.1 W of power for 64 s, what distance is the roller pushed? Answer in units of m.
February 23, 2011

physics
A lawn roller is rolled across a lawn by a force of 109 N along the direction of the handle, which is 24.2 above the horizontal. If the lawn roller develops 66.1 W of power for 64 s, what distance is the roller pushed? Answer in units of m.
February 23, 2011

Math
Solve the system of equation. x+y+z=6 3x-2y=4z=9 x-y-z=0 ________
February 22, 2011

English
The learner will distribute color coded index cards with the three main types of rocks written on them to be used in class question and answer session. Is this sentence correct or does it need a comma?
February 20, 2011

English
Thank you
February 15, 2011

English
She also told me that I need to write as well as I speak, and I agree with her. She also told me that I needed to write as well as I spoke, and I agree with her. Which on is correct? This is for a paper and it is supposed to be in past tense.
February 15, 2011

English
Thank you
February 15, 2011

English
I made up a game for them to play and made a mental note to keep extra activities on hand for when my class finishes earlier than expected. Is this correct? My supervising teacher informed me that I speak well in class. My supervising teacher informed me that I spoke well in ...
February 15, 2011

physics
A simple pendulum has a length of 1.5 m and is pulled a distance y = 0.24 m to one side and then released. (Assume small angle.) What is the speed of the pendulum when it passes through the lowest point on its trajectory?
December 10, 2010

chem
What is the empirical formula for Ba(NO3)2
December 10, 2010

Business Communications
Thanks Ms Sue, you're a big help to everyone. Keep participating please. The answer is B according to the computer.
December 3, 2010

Physics
The speed of longitudinal waves, called P waves, is 7274.0 m/s. Transverse waves, called S waves, travel at a slower 3803.0 m/s. A seismograph records the two waves from a distant earthquake. If the S wave arrives 4.47 min after the P wave, how far away was the earthquake?
November 23, 2010

Physics
For a certain transverse wave, the distance between two successive crests is 1.89 m, and 5 crests pass a given point along the direction of travel every 12.84 s. Calculate the wave speed.
November 22, 2010

Physics
A microphone has an area of 6.7 cm2. It receives during a 4.62 s time period a sound energy of 2.5x10-11 J. What is the intensity of the sound?
November 22, 2010

Physics
A wave with frequency 12.2Hz and amplitude 47.7 mm moves in the positive x direction with a speed of 8.9 m/s. What is the waves wavelength?
November 22, 2010

Chemistry
At a certain temperature, the pH of a neutral solution is 7.77. What is the value of Kw at that temperature?
November 22, 2010

Chemistry
What is the H+ concentration for an aqueous solution with pOH = 4.13 at 25 ?
November 22, 2010

physics
a 0.180 kg ball falls 2.5m. How much work does the force of gravity do on the ball?
November 16, 2010

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