Aball is thrown into the air with an initial upward velocity of 60 ft/s. its height (h) in feet after t seconds is given by the function h = –16t² + 60t + 6. what will the height be at t = 3 seconds?
a.) 35 feet
b.) 40 feet
c.) 42 feet
d.) 45 feet

Solar cell a produces 100 joules of energy, when a light source is shown on it for 3 minutes. solar cell b produces 200 joules of energy when the same light source is shown on it for 5 minutes. which solar cell works better? a) solar cell b, because it produces more energy. b) solar cell b, because it generates more power. c) solar cell a, because it produces energy quicker. d) solar cell a, because it generates a greater wattage. eliminate

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2

During the past 150 years in the united states, how did energy consumption compare to population growth