Answer:
Explanation:
Work done on the lever ( input energy ) = force applied x input distance
= 24 N x 2m = 48 J
Work done by the lever ( output energy ) = load x output distance
= 72 N x 0.5m = 36 J
efficiency = output energy / input energy
= 36 J / 48 J
= 3 / 4 = .75
In percentage terms efficiency = 75 % .
KE = ½mv² = ½(4.00 kg)(16.0 m/s)² = 512 J
Answer:
Atomic number of calcium is 20.
Answer:
Tuesday bc instead of running he/she was walking bc he/she might not have as much energy
Explanation:
