Friday
May 24, 2013

# Posts by MARK

Total # Posts: 1116

Physics
A freight train has a mass of 1.5*10^7 kg. If the locomotive can exert constant pull of 4.5 *10^5N, how long does it take to increase the speed of the train from res to 80.0km/hr? a)467s b) 444s c)527s d) 425s e) 496s

Physics
A typical laboratory centrifuge rotates at 4100 rpm. Test tubes have to be placed into a centrifuge very carefully because of the very large accelerations. (a) What is the acceleration at the end of a test tube that is 11 cm from the axis of rotation? dropped from a height of ...

Chemistry
When investigating heat of solution of NaoH& NH4No3, what is the heat of solution of the two cpds?

English
There is a control on the television set for making the picture a little less brighter. Is the sentence correct or is it a little less bright

English
We found it hard to understand why Randy had spoken as rude as he did in response to a simple question. is rude correct or is it rudely and why

Eglish
Thanks Ms. Sue

English
Why is she walking so slow toward the house? Is that correct or should it be (so slowly} They both sound correct

English
Dividing the pie into, Felicia took the least and gave me the larger portion. Is least correct or should it be lesser? It doesn"t sound right with lesser.

Math
Two sides of a triangle measure 14 and 10. If A is the set of possible lengths for the third side, how many elements of A are integers? Is the correct answer 19 elements of A are integers?

Math
Two sides of a triangle measure 14 and 10. If A is the set of possible lengths for the third side, how many elements of A are integers? Is the correct answer 19 elements of A are integers?

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