Which statement is the best example of how society affects the use of technology? O A. People who make a lot of money tend to buy new cars with the most modern features. O B. Larger vehicles that use gasoline release more carbon dioxide than smaller gasoline-powered cars. O C. People who sell cars make more money when the supply of new cars is low. D. Researchers are developing solar-powered cars that can travel long distances.​

Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge

Four objects each with charge +2.0×10−7c are located at the corners of a square whose sides are 2.0 m long. part a what quantities can be determined using this information? check all that apply. the electric force on a charged object placed at the center of the square. the mass of each object. the total electric potential energy of the system consisting of the four charged objects. part b find the electric force on a charged object placed at the center of the square.

Astone is dropped from the upper observation deck of a tower, 250 m above the ground. (assume g = 9.8 m/s2.) (a) find the distance (in meters) of the stone above ground level at time t. h(t) = (b) how long does it take the stone to reach the ground? (round your answer to two decimal places.) s (c) with what velocity does it strike the ground? (round your answer to one decimal place.) m/s (d) if the stone is thrown downward with a speed of 2 m/s, how long does it take to reach the ground? (round your answer to two decimal places.) s