Saturday
August 30, 2014

Posts by Arian


Total # Posts: 10

Physics 2
four equal-magnitude (4uc)charges are placed at the four corners of a square that is 20cm on each side.find the electric field intensity at the center of square , if the charge are all positive.
May 27, 2014

College Chemistry
1. From data below, calculate the total heat (in J) associated with the conversion of 0.514 mol ethanol gas (C2H6O) at 451°C and 1 atm to liquid ethanol at 25.0°C and 1 atm. (Pay attention to the sign of the heat.) Boiling point at 1 atm 78.5°C cgas 1.43 J/g°C ...
January 23, 2011

College Chemistry
1. From data below, calculate the total heat (in J) associated with the conversion of 0.514 mol ethanol gas (C2H6O) at 451°C and 1 atm to liquid ethanol at 25.0°C and 1 atm. (Pay attention to the sign of the heat.) Boiling point at 1 atm 78.5°C cgas 1.43 J/g°C ...
January 22, 2011

College Chemistry
1. From data below, calculate the total heat (in J) associated with the conversion of 0.514 mol ethanol gas (C2H6O) at 451°C and 1 atm to liquid ethanol at 25.0°C and 1 atm. (Pay attention to the sign of the heat.) Boiling point at 1 atm 78.5°C cgas 1.43 J/g°C ...
January 22, 2011

Physics
How many electrons in an atom can have each of the following quantum number or sublevel designations? 1. n=4, l=3
October 31, 2010

Chemistry
To prevent the presence of air, noble gases are placed over highly reactive chemicals to act as inert "blanketing" gases. A chemical engineer places a mixture of noble gases consisting of 4.50 g of He, 15.0 g of Ne, and 33.6 g of Kr in a piston-cylinder assembly at ...
October 18, 2010

3rd grade
30 on the sides 100 on top and bottm
October 6, 2010

AP PHYSICS
A speedboat starts from rest and accelerates at +2.01 m/s2 for 7.15 s. At the end of this time, the boat continues for an additional 6.25 s with an acceleration of +0.518 m/s2. Following this, the boat accelerates at -1.49 m/s2 for 8.55 s. (a) What is the velocity of the boat ...
September 27, 2010

AP physics
A drag racer, starting from rest, speeds up for 402 m with an acceleration of +23.0 m/s2. A parachute then opens, slowing the car down with an acceleration of -5.10 m/s2. How fast is the racer moving 2.50 102 m after the parachute opens?
September 27, 2010

Geometry
Given: ray AD bisects <BAC <DAC=3x, and <BAD=5x-24 Prove: x=12 its a proof and i need help
January 21, 2009

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