Arian

Most popular questions and responses by Arian
  1. 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.

    asked on May 27, 2014
  2. 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

    asked on October 18, 2010
  3. 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?

    asked on September 27, 2010
  4. 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

    asked on September 27, 2010
  5. 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

    asked on January 23, 2011
  6. 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

    asked on January 22, 2011
  7. Geometry

    Given: ray AD bisects

    asked on January 21, 2009
  8. Physics

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

    asked on October 31, 2010
  9. Pre-calculus

    Consider an open-top box constructed from an 8.5 × 11 inch piece of paper by cutting out squares of equal size at the corners, then folding up the resulting flaps. Denote by x the side-length of each cut-out square. a) Draw a picture of this construction,

    asked on May 2, 2016
  10. 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

    asked on January 22, 2011
  1. Science-Enr. Phys.

    1. The 425 N force needs to be broken into component vectors. 425*sin35.2 will give you the vertical component, 425*cos35.2 will give you the horizontal component. 2. The vertical component gets added to the box's 325 N weight because it is being pushed

    posted on January 22, 2015
  2. 3rd grade

    30 on the sides 100 on top and bottm

    posted on February 1, 2012