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Homework Statement A small boat is floating in a swimming pool. The boat contains a heavy rock. If the rock is tossed out of the boat into the pool and the rock sinks, what happens to the water level in the pool? What if the rock floats? What if the rock became submerged in water (but didn't...

But is this the right way to do this problem?

1. In the rope climb, a 68.8kg athlete climbs a vertical distance of 4.74m in 8.70s. What minimum power output was used to accomplish this feat? 2. Average Power = Work / time 3. P = mgh/t = 367 W, which is apparently the wrong answer (this is an online course where you input the...

We put a 100 cm ruler on a table at the 50cm mark. The 0cm mark is on the table and the 100cm mark is in free air. The ruler is in static equilibrium. Now we place the ruler on the table at the 40cm mark, creating a torque on the ruler so that it is not balanced. Next attach a weightless...

We put a 100 cm ruler on a table at the 50cm mark. The 0cm mark is on the table and the 100cm mark is in free air. The ruler is in static equilibrium. Now we place the ruler on the table at the 40cm mark, creating a torque on the ruler so that it is not balanced. Next attach a weightless...