archer

Most popular questions and responses by archer
  1. Math

    Let A1,A2...A12 be twelve equally spaced points on a circle with radius 1. Find (A1 A2)^2 + (A1 A3)^2 + ... + A11 A12)^2. (The sum includes the square of the distance between any pair of points, so the sum includes 12 choose 2 = 66 terms.)

    asked on May 31, 2016
  2. physics

    Starting from rest, a 2.4x10-4 kg flea springs straight upward. While the flea is pushing off from the ground, the ground exerts an average upward force of 0.42 N on it. This force does 1.5x10-4 J of work on the flea. (a) What is the flea's speed when it

    asked on August 28, 2015
  3. physics

    The aorta carries blood away from the heart at a speed of about 43 cm/s and has a radius of approximately 1.1 cm. The aorta branches eventually into a large number of tiny capillaries that distribute the blood to the various body organs. In a capillary,

    asked on August 28, 2015
  4. linear programming problem

    Maximize P=60x+50y x+y≤80 5x+10y≤560 50x+20y≤1600 x≥0 y≥0 s =

    asked on December 16, 2016
  5. physics

    A 58.0-kg man is riding an escalator in a shopping mall. The escalator moves the man at a constant velocity from ground level to the floor above, a vertical height of 3.70 m. What is the work done on the man by (a) the gravitational force and (b) the

    asked on August 28, 2015
  6. Maximize P=60x+50y

    Maximize P=60x+50y . x+y≤80 5x+10y≤560 50x+20y≤1600 x≥0 y≥0 Just need help in finding s=

    asked on December 16, 2016
  1. European History

    This answer requires your opinion; not facts. What do YOU think the Americans should have done? You MUST known what the Bosnian Genocide was first of all.

    posted on November 19, 2015