Recent content by brown0_0eyes

Solar energy is incident on the pond at an average rate of 400 W/m^2. If the water absorbs all the solar energy and does not exchange energy with its surroundings, how many hours will it take to warm from 15 degree C to 25 degree C?

A 1.9 m-long barbell has a 20 kg weight on its left end and a 35 kg weight on its right end. Q1: f you ignore the weight of the bar itself, how far from the left end of the barbell is the center of gravity? Q2: Where is the center of gravity if the 9.0 kg mass of the barbell itself is taken...