Saturday
December 7, 2013

# Posts by Kristina

Total # Posts: 163

calculus
A regular decagon(12 sides) in inscribed in a circle with the radius r. The decagon has an area of108 in^2. What is the radius of the cirlce?

calculus
A regular decagon(12 sides) in inscribed in a circle with the radius r. The decagon has an area of108 in^2. What is the radius of the cirlce?

Physics
Inside the cylinders of a diesel engine, the mixture of fuel and air is compressed to about 1/20 of its original volume. Although diesel engines have no spark plugs to ignite this mixture, it ignites anyway because of what?

algebra
what are two factors of 240 that subtract or add to 14.

chemistry
What is the total amount of heart absorbed by 100.0 grams of water when the temperature of the water is increased from 30.0 degrees Celcius to 45.0 degrees Celcius?

Physics
At a height of 15 meters above the surface of a lake, a sound pulse is generated. The echo from the bottom of the lake returns to the point of origin 0.150 s later. The air and water temperatures are 20°C. How deep is the lake?

Chemistry
How much energy does it take to convert 12.5 grams of water to water vapor?

hcr 230
I was hoping someone could look over my paper and tell me if I am answering correctly the questions below. For patient billing to be operative, dependable financial procedures and policies need to be in order to clarify to the patients what is their responsibility to pay. Pati...

calculus
The area of a rectangle is 25cm^2. Express the perimter of the rectangle in terms of its width.

Phys
A series of waves traveling at 200m/sec are being generated by a 100 Hz source. A point at the very top of the crest of a certain wave is _______ meters from a corresponding point 3 'crests' away. 0 1.5 2.7 4 6.0 12.0 16.0 30000 I think its 4 b/c 200+200=400 and 400/10...

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