Two balloons, one with a charge of 4.0 x 10 coulombs and the other with a charge of 8.2 x 106 coulombs, are kept 2.0 meters apart. What is the electric force between the two balloons? (k = 9.0 x 10^9 newton-meter^2/ coulombs^2)
A. 4,0 x 10^-2 newtons
B. 5.2 x 10^-2 newtons
C. 7.3 x 10^-2newtons
D. 8.2 x10^-6newtons

Which fact supports the conclusion that there will be fewer farm managers in the future? a) a farmer manager’s duties vary by the type of farm. b) farm technology is replacing some administrative jobs c) farm managers often need experience but not education. d) administrative duties include budgeting and training staff.

A5 foot by 5 foot box culvert is buried 6 feet beneath the surface of the ground. a crosssection of this very long culvert (into and out of the page) is illustrated below. assume that the soil in which the culvert is buried has the following properties: jt = 120 pcf, w = 12%, ko = 0.50, ka = 0.33, and kp = 3.00. calculate the total horizontal force per unit length of culvert (fh) felt on one of the vertical faces of the culvert.

Which phrase describes the paleo-indians of prehistoric arkansas? a. grew cornb. lived in cliff dwellings c. crafted beautiful potteryd. hunted with stone-tipped spearswhich phrase describes native arkansas from the woodland traditiona. developed widespread agricultureb. hunted mastodon and woolly mammothc.built rectangle-shaped homesd. traded salt with other groups