What temperature is required to transfer waste heat to the environment for a heat engine to be 100 percent efficient? a) 0°c b) 0 k c) 273 k d) 212°f

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

Which of these questions might a character ask if the conflict is man versus self? a. which path should i take to better myself? b. which boulder will be too heavy for me to carry? c. which friend is going to ditch me today? d. all of the above

The current through a 10 ohm resistor is 1.2 amperes. what is the potential difference across the resistor?