Monday
October 20, 2014

Posts by please help!!


Total # Posts: 21

Math
Please
May 5, 2014

Engineering
The power plant is to be operated in a region where the same company operates several other coal fired power plants that were all built in the 1960s. The new power plant is planned to have 500 MW energy generating capacity. The next largest plant is 50 MW and each is emitting ...
April 9, 2013

Engineering
The power plant is to be operated in a region where the same company operates several other coal fired power plants that were all built in the 1960s. The new power plant is planned to have 500 MW energy generating capacity. The next largest plant is 50 MW and each is emitting ...
April 9, 2013

Spanish
Complete the paragraph with the appropriate definite articles. Hola chicos, yo soy (1) señora López, (2) nueva (new) profesora y éste (this) es Carlos, (3) conductor. ¿Ustedes son (4) pasajeros? Aquí (Here) tienen (5) documentos y (6) maletas.
February 15, 2013

Accounting
Hankco accepts all major bank credit cards, including Omni Bank's, which assesses a 3% charge on sales for using its card. On June 28, Hankco had $4,500 in Omni Card credit sales. What entry should Hankco make on June 28 to record the deposit? A. Debit Accounts Receivable...
February 15, 2013

English PREP 080
I need help trying to figure out if the sentence is simple or compound; The party, planned at the last moment, was a success.
April 17, 2012

math
First you need to assign your unknowns Math Books: 7 History: x Science Books: x-4 Total books: 25 so your equation is going to be 7+x+x-4=25 Then you can solve. I hope this help!
April 17, 2012

Physics -- sound
An organ pipe that is closed at one end has a fundamental frequency of 146 Hz. There is a leak in the church roof, and some water gets into the bottom of the pipe, as shown in the Figure. The organist then finds that this organ pipe has a frequency of 273 Hz. What is the depth...
November 19, 2011

IPC
i dont have a book or anything to go look all this stuff up so i really need help understanding this.. Which of the following statements is not true? a)negatively charged objects attract other negatively charged objects. b)postively charged objects attract negatively charged ...
May 11, 2011

IPC
hahaha thank you! it helped a lot! :)
May 3, 2011

IPC
okayy sooo this matching thing is wierd.. i dont understand it.. Zeroth First Second -Heat can change energy from one form to another, but the amount of energy in the universe is constant. -Two objects in thermal equilibruim will have no net heat flow between them. -The ...
May 3, 2011

IPC
Okayy thank you! :) That makes sence now lol
May 3, 2011

IPC
i have no idea how to do this at all please explain... The specific heat capacity of copper is 0.09 cal/g°C. How much energy is needed to flow into a 10-gram sample to change its temperature from 20°C to 21°C?
May 3, 2011

physics
On a string instrument of the violin family, the effective length of a string is the distance between the bridge and the nut. For a violin, this distance is 30 cm, while for a cello it is 36.6 cm. The string of a violin is placed in a cello with the intention of producing a ...
February 3, 2011

physics
While blowing its horn of frequency 477 Hz, a car accelerates at 0.94 m/s2. The car starts from rest by your side and moves away. How many seconds does it take for the frequency you hear to decrease by 5%? Hint: Do not forget to include the time it will take for sound to reach...
February 3, 2011

math(algebra 1)
so are these correct? 2)y=-3x-1 x-3y=3 x=0 y=-1??? 3)3x-y=9 2x+y=6 dont know help?? 4)x-2y=0 3x+y=0 please help!!! i dont know how you changed x - y = 4 to x = 4 + y tell me please Thanks!!
January 18, 2011

Math
1/2x > -3 I do not understand how to solve
January 5, 2011

Math
The rule for multplying and dividing both sides of an inequality do not meantion zero. Explain why??
January 5, 2011

STAT
1. In a study of the income of U.S. factory workers, a random sample of 100 workers shows a sample mean of $35,000. Assume that the population standard deviation is $4,500, and that the population is normally distributed. A) Compute the 90%, 95% and 99% confidence intervals ...
November 4, 2010

Biochemistry
If 400 mL of 0.1 M NaH2PO4 is mixed with 100 mL of 0.1 M H3PO4, what is the pH of the buffer mixture. The pKa of H3PO4 is 2.1.
October 5, 2010

math
Solve the poloynomial x^3+4x^2-x-4=0
March 15, 2010

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