Which statement best explains the environmental benefit of using geothermal energy over energy generated by fossil fuels? More cost-effective over time
Lower installation costs than fossil fuel plants
More energy plant locations available
Less pollution than fossil fuel plants

Afeather of mass 0.001 kg falls from a height of 2 m. under realistic conditions, it experiences air resistance. based on what you know about friction, what can you say about the kinetic energy of the feather as it reaches the ground? acceleration due to gravity is g = 9.8 m/s2. a. ke < 0.0196 j b. ke = 00196 j c. je = 0 j d. ke > 0.0196 j

Aweight lifter raises a 1600 n barbell to a height of 2.0 meters. how much work was done? w = fd a) 30 joules b) 3000 joules c) 320 joules d) 3200 joules

Acamcorder has a power rating of 20 watts. if the output voltage from its battery is 9 volts, what current does it use?