A bag contains nine red marbles, four green marbles, three blue marbles, and two yellow marbles. If Lisa draws a random marble from the bag, what is the probability that it will be a red, green, or blue marble?
April 18, 2014
What advice do you think the poet would give to the grieving Margaret in Spring and Fall? To a young child Margaret, are you grieving Over Goldengrove unleaving? Leaves, like the things of man, you With your fresh thoughts care for, can you? Ah! as the heart grows ...
May 30, 2013
A satellite circling the earth has an average power consumption of 370.0 W. Assuming 5.4% efficiency for conversion of solar energy to electrical energy, what area is required for the solar panels?
March 16, 2011
A horizontal force of magnitude F = 110 N is used to push a box of mass m = 6 kg from rest a distance d = 16 m up a frictionless incline with a slope q = 28°. a) How much work is done by the force on the box? b) How much work is done on the box by the gravitational force ...
February 26, 2011