Monday
December 9, 2013

# Posts by an

Total # Posts: 55

math
Susan wore the blue ribbon Clare wore the yellow ribbon Now you do jean

phisics
A Cessna aircraft has a lift-off speed of 120 km/h. What minimum constant acceleration does this require if the aircraft is to be airborne after a take-off run of 265 m? Answer in units of m/s2 b) How long does it take the aircraft to become airborne? Answer in units of s

Geometry
42

Life Orientation
Pollution

physics
If a violin string vibrates at 1720Hz, what is the wavelength of the sound produced in the surrounding air? (assume T=20 degree Celsius and speed is 344m/s)

What exposure will a radiology technologist receive when exposed for 10 minutes at 4 meters from a source with intensity of 100 mR/min at 1 meter?

chem
If 1.0 L of 0.2 M Ca(OH)2 is added to 2.5 L of 0.1 M HCl, the pH of the final solution is? can someone show me the working out of this question? im very confused by it. thankyou

English
The marshmellow man is from ghostbusters..lol

biochemistry
I have three questions. I don't even know where to begin. 1. a) If an in vitro fatty acid synthesizing system is supplied with [2-14C]-acetyl CoA as the only source of radioactive label along with all other necessary cofactors/reactants for net fatty acid synthesis, in wha...

physics
A block lies on a smooth plane tilted at an angle è = 28.5° to the horizontal. Ignore friction. (a) Determine the acceleration of the block as it slides down the plane. 1 m/s2 (b) If the block starts from rest 9.40 m up the plane from its base, what will be the bloc...

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