Total # Posts: 921
A train slows from 25m/s to 14m/s in 5.0s. Calculate the work done on the train....so I calculted the displacement and the force and put them together to get an answer of 5.0 x 10^7J, but my textbook says it should be 1.1 x 10^7J? Am I right, or is the textbook? Merci beaucoup!
October 14, 2007
Patterns and Relationships
1. Which rule is correct for the following: 2,8,20,44 a. yx2+2 b. y+4x2 c. y+3x3 d. y+2x2 2. Which fraction does not belong in the pattern? 1/5, 2/10, 3/15, 4/25 it is D. i believe. the pattern of the first three in 2 it can be reduced to 1/5 (all of them). The last one cannot...
April 19, 2007
When 0.633 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 103C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant figures. Do not ...
February 12, 2007
WHAT HAPPENS IF EARTH'S MINERALS ARE USED UP? Will more grow or will there be no more Some minerals are being formed all the tme; others are not and will die out, so to speak, or be redustributed and any one site will be too small to pay to mine. Personally, I doubt that ...
December 11, 2006
I need pictures of molecular structures like Adenine to draw 4 homework search google images using the name of the structures you have to draw... http://images.google.com/images?&num=10&hl=en&btnG=Google+Search&lr=&as_ft=i&as_qdr=all&as_dt=i&as_rights=&safe=off&ie=UTF-8&oe=UTF...
November 14, 2006
What does distance/time/rate of speed mean?? Its all one word AND IM SOO CONFUSED! Movement? I am confused also. Rate of speed is not a common term. Speed is rate of motion , or rate of change of distance per time. i need help on my math vocab what is a sector What is the ...
October 4, 2006
What are the three main types of resources used for making, selling, and using goods and services? a. soil, water,air b. money, barter, credit c. natural, human, capital d. gold, silver, broze This is a double post.
September 11, 2006
What are the three main types of resources used for making, selling, and using goods and services? a. soil, water,air b. money, barter, credit c. natural, human, capital d. gold, silver, broze c.
September 11, 2006