Friday
May 6, 2016

# Posts by ag

Total # Posts: 15

Calculus
I really need help with this calculus question. I ve been struggling to figure it out. Imagine making a tent in the shape of a right prism whose cross section is an equilateral triangle (the door is on one of the triangular ends). Assume we want the volume to be 2.6m^3, to ...
May 17, 2015

PHYSICS
The wattage of a commercial ice maker is 226 W and is the rate at which it does work. The ice maker operates just like a refrigerator and has a coefficient of performance of 3.90. The water going into the unit has a temperature of 15.0°C, and the ice maker produces ice ...
December 1, 2012

Chemistry
An unknown amount of water is mixed with 310 mL of a 6 M solution of NaOH solution. A 75 mL sample of the resulting solution is titrated to neutrality with 58.2 mL of 6 M HCl. Calculate the concentration of the diluted NaOH solution. Answer in units of M What volume of water ...
March 19, 2012

Chemistry
An unknown amount of water is mixed with 310 mL of a 6 M solution of NaOH solution. A 75 mL sample of the resulting solution is titrated to neutrality with 58.2 mL of 6 M HCl. Calculate the concentration of the diluted NaOH solution. Answer in units of M What volume of water ...
March 19, 2012

Chemistry
Why does it take more energy to remove a electron from Al+ than from Al?
January 4, 2012

math
lim x->0 sinx secx / x use the fact that the limit as x approaches 1 of (sinx / x) = 1
September 20, 2011

trig
is there a lowest or least cosine of a triangle with sides of 4,5,and 6? such as: .78, .72...
January 17, 2011

physics
A string is tied across the opening of a deep well, at a height 5 m above the water level. The string has length 7.51m and linear density 4.17 g/m; any time there is a wind, the string vibrates like mad. The speed of sound in air is 343 m/s. Assuming that the resonance ...
January 30, 2010

science
Please check my work 3M solution of NaOH (1 liter worth) molecular weight: 39.99 3 x 39.99= 119.97 grams dilute to 1000mL 3 M solution of HCl (1 L) c1v1=c2v2 (12M)(?)= (3M)(1000mL) ?= 250 mL please check thank you
October 13, 2008

anatomy
structurally, what is the difference between the dermis and the epidermis?
September 9, 2008

Chemistry
CALCULATE THE MOLARITIES OF HC2H3O2 AND NAC2H3O2 IN THE BUFFER SOLUTION
July 9, 2007

Chemistry
Hi! there's 3 questions..if you can help on any that'd be great..thanks! 1. Volatile liquids with lower boiling points often give better results than those with higher boiling points. Suggest a reason for this. 2. What effect would vapor condensation in the neck of the...
January 20, 2007

Physics
Why, when you stroke a cat's fur, or comb your hair on a cold, dry day can you hear a crackling sound? Doing these things in a darkened room, you can actually see sparks. Explain. Please explain to me! Thanx !! Static electricity builds up with a positive charge on one of ...
January 19, 2007

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