Imagine a Carnot engine has a hot reservoir of 680 K and a cold reservoir of 220 K. What is the efficiency of the engine?

Whiatvare basic components of the hardy-weinberg model?

Two identical spring-loaded dart guns are simultaneously fired straight forward. one fires a regular dart; the other a weighted dart. which dart goes farther?

If we consider a gallon of gas as having 100 units of energy, and 25 of those units are used to move the car, what law of thermodynamics accounts for the other 75 units of energy? Answer the first law the second law

What substance resist pH change?

What increases as the temperature of a solid object rises

two objects are in uniform circular motion at the same speed but at different radii. the ones with the __ radius has the largest centripetal acceleration.

What about a rubber band, can it change its shape? Is it a solid?

Which two subatomic particles have approximately the same mass

A blank tells you what the different symbols and lines represent on a map

How well would a piece of hot metal heat the cool water?