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September 2, 2014

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Number of results: 1,416

lab+chem.
Hey can u guys help on this lab, I dont get it. I have to figure out the: prediction, Analysis, and evaluation. Problem: what is the molar enthalpy of ice? Evidence: mass of calorimeter: 3.76g mass of calorimeter+ water: 103.26g mass of calorimeter+ water+melted ice: 120.59g ...
August 5, 2006 by David

math+ confused!
okay the question is as follows: write the first three teerms of tn= 5(2)^ n-1. what is the value of tn/tn-3? I did not get I asked my teacher and he said: plug in n=1, n=2, n=3, to find t_1, t_2, t_3. plug in n-3 and n separately. then take the ratio of the terms. I am ...
October 18, 2006 by eva!

physics
A de-orbit burn, similar to that presented in the previous math problem, has been performed. During this de-orbit burn a pre-calculated ∆V (delta V, change in velocity) of 290 ft/s (or 88.4 m/s) will be used to decrease the Shuttle’s altitude from 205 miles to 60 miles ...
January 20, 2012 by Levi B.

chemistry
Calculation of )Hf0 for Mg2+(aq.) 1. Assume the heat capacity of the final solution is 3.92 J K-1 g-1. Using the mass of the HCl solution, calculate qcontents from equation (4.6). Calculate qsystem from equation (4.5). 2. Calculate the moles of Mg2+ produced, nrxn. Be sure to ...
March 25, 2011 by Narash

Statistics
Question 1 Use the following research question and data for questions 1 - 6. A researcher is examining the effects of a computer-based training program designed to teach algebra. The researcher randomly selects subjects for two groups and gives one group the computer training ...
October 18, 2008 by J

ship problem
A [B]ship P [/B] is travelling due [B]East at 30 km/h[/B] and a [B]Ship Q[/B] is travelling due [B]South at 40 km/h. [/B] Both ships keep constant speed and course. [B]At t=0 they are each 10 km [/B] from the point of intersection of their courses and moving towards the point...
July 15, 2006 by rav

Business Law 311
PLEASE someone check these for me, Thanks.. Delta Inc. offers to sell Omega Corp. a packaging machine. Omega responds “We’ll take it but only if there is a six-month warranty.” Which of the following is true? There is a contract, and Omega has a six-month warranty. There is a ...
December 8, 2013 by Kathy

I need help..
1. Diarrhea can be caused by a change in diet and different minerals in the water. True False 2. Fusion produces less radioactivity than fission. True False 3. Wise travelers eat only cooked vegetables in underdeveloped areas. True False 4. The kilogram is the basic unit of ...
January 7, 2013 by Morgan Stevenson

Will somebody help me please?
1. Diarrhea can be caused by a change in diet and different minerals in the water. True False 2. Fusion produces less radioactivity than fission. True False 3. Wise travelers eat only cooked vegetables in underdeveloped areas. True False 4. The kilogram is the basic unit of ...
January 8, 2013 by Morgan Stevenson

Please guys. Help me out.
1. Diarrhea can be caused by a change in diet and different minerals in the water. True False 2. Fusion produces less radioactivity than fission. True False 3. Wise travelers eat only cooked vegetables in underdeveloped areas. True False 4. The kilogram is the basic unit of ...
January 7, 2013 by Morgan Stevenson

history
The Division of Buddhism: Theravada and Mahayana Buddhism Buddhism, the religion was born in India in the sixth century, with wide spread over a large part of Asia and many parts of the world. After the death of the Buddha, the Buddhist communities of their own have been met ...
December 5, 2008 by Michelle

Science Somebody Help Me Please..I have a deadline
1. Diarrhea can be caused by a change in diet and different minerals in the water. True False 2. Fusion produces less radioactivity than fission. True False 3. Wise travelers eat only cooked vegetables in underdeveloped areas. True False 4. The kilogram is the basic unit of ...
January 7, 2013 by Morgan S

Please CHECK thanks
Please check and tell me what I got wrong and let me know the correct answer for the problem. Thanks. 1. Diarrhea can be caused by a change in diet and different minerals in the water. True (yes) False 2. Fusion produces less radioactivity than fission. True False (yes) 3. ...
January 9, 2013 by Morgan Stevenson

Somebody check this plz..and thanks.
Please check and tell me what I got wrong and let me know the correct answer for the problem. Thanks. 1. Diarrhea can be caused by a change in diet and different minerals in the water. True (yes) False 2. Fusion produces less radioactivity than fission. True False (yes) 3. ...
January 9, 2013 by Morgan Stevenson

ASTRONOMY
WHAT CAUSE AN ELECTRON TO OCCUPY A HIGHER ORBIT?? Do you really mean an electron or are you really referring to a planet or satellite since the title of your post is astronomy? If you really meant a planet or satellite: Consider a satellite in a circular orbit around the earth...
July 12, 2005 by NUS

Chemistry
Posted on April 12. From the information below, identify element X. a. The wavelength of the radio waves sent by an FM station broadcasting at 97.1 MHz is 30.0 million (3.00 e7) times greater than the wavelength corresponding to the energy difference between a particular ...
April 18, 2007 by Gabriela

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