Wednesday
July 23, 2014

Posts by ALEXIS


Total # Posts: 625

Just a repost, in case the old isnt seen
HAHA I just got the answer!!!! You don't use F=mg it should be ma!!! Thanks anyways!!

Just a repost, in case the old isnt seen
sorry! I never noticed..the mass should be 52000kg sorry about that! For Further Reading physics repost - Alexis, Sunday, October 14, 2007 at 6:07pm so it should be a 52000kg train slows from 25 m/s to 14m/s in 5.0 s. Calculate the work done on the train. so I found the displ...

physics repost
I tried to get the answer using the kinetic energy formula, and it works (for the answer of 1.1x10^7), but the only problem is, the homework is for the pages before the kinetic energy, so I would like to know how to figure out the answer without the kinetic energy formula. Tha...

physics repost
so it should be a 52000kg train slows from 25 m/s to 14m/s in 5.0 s. Calculate the work done on the train. so I found the displacement by using displacement= 1/2 (v1+v2) (delta t) and got 97.5 and then I found the force which is F=mg and got 510120N, then took that force and d...

physics repost
sorry! I never noticed..the mass should be 52000kg sorry about that!

Physics
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!

english
Which is the most valid conclusion regarding the theme of the passage?

english
The effect of the last phrase of the passage, "it is very cold," depends mainly on

ALGEBRA 1
after finding distance and midpoint.. how do you find the equation of the line?

AP world history
thank you so much

AP world history
What are "sectional interests" as cited in Washington's farewell address in 1796

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...

Linear Measurements
what is the answer to this?0.18meters = how many cm

chmistry
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 ...

1st grade homework question
can the earths minerals be all used up or do they regrow?? That question has been answered just a few posts below. If you can't find it, please repost.

SCIENCE
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 a...

Pigskin Geography
wat are the answers for week 10?

biology
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...

Biology
How does the interaction between a carrier protein and the substance it transports resemble the interaction between an enzyme and its substrate? Use the Fit model on this.

pigskin
what is the question to pigskin week 4

Math vocab
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 sign...

social studies
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.

social studies
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.

How far of the Taurus form Earth?
i learnd that taurus bull is 68 light years away from earth.

siecnce
f ou y ve el be ha rs

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