I would assume his law about force which is incorrect but was corrected in 1983.
The teacher (10th grade) hasn't done a very good job of teaching. His method is to give us problems and ask us to research how to find the answer. I researched force and read about the correct model for Newtonian...
Homework Statement
A 100 kg object is accelerated by a force of 10,000 N. What is the acceleration of the object caused by the force?
Homework Equations
F_N = m * u(a / a_0) * a
a_0 = 1.2 * 10^-8 cm / s^2
The Attempt at a Solution
I'm using u(a / a_0) = 1 / (1 + a_0 / a) as my interpolating...
Homework Statement
A pressure cooker is a nearly air tight sealed system. When seated on a stove burner and heated, water turns to steam and increases the pressure inside, resulting in higher temperatures so food cooks faster. Suppose 1/2 cup of water is inside the pressure cooker and it is on...
I believe it would then reduce the final temperature of the system since it would have a resistance to temperature increase that would suck up some of the thermal energy (and started at a lower temperature than the system's average at the start)
Assuming I have that right I think I understand...
Sorry I wasn't clear. When I said that "I was thinking the 'no heat enters or leaves' was just a magical constraint" I was saying that I thought that a somewhat nonsensical constraint had been placed on the system in order to simplify the problem.
I assume by emphasizing that the constraint was...
I'm guessing that means it starts at 0 degrees Celsius but I don't understand why. I was thinking the "no heat enters or leaves" was just a magical constraint because if the container was cooler than room temperature then it should be bringing heat into the system... or if it's warmer then it...