Two cars are driving down the road. Car A has a mass of 1100 kg and is moving at 20 m/s. Car B is has a mass of 1000 kg and is moving at 30 m/s. Which car has more
kinetic energy and why?

How much heat is released upon converting one mole of steam (18.0 g) from 100.0 ∘c to water at 25.0 ∘c? show work and constants, trying to figure out how it works. only given the heat capacity for steam and water so try to only use that

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

Define a is a tiny pavket of energy