1 1.2.4 Quiz: Modeling Question 9 of 10
Which scenario would be classified as a conceptual model?
A. A map and a map scale are used to represent a larger area of land.
B. A weather map shows different temperatures over most of the
United States.
C. Marshmallows and toothpicks are used to show the composition
of a water molecule.
O D. A student thinks of bouncing balls as representing gas molecules.

Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.

I’ve been stuck on this for a while

You add 800 ml of water at 20c to 800 ml of water at 80c what is the most likely final temperature of the mixture ? a. 100c b. 60c c. 25 c d.50c