Cara and sam had to illustrate one newton's laws. they drew this model to represent the law of motion which can also be represented by the equation f = ma.
a) first
b) second
c) third
d) fourth

The model depicts the second law of motion.

Explanation :

According to Newton's second law of motion :

F = ma

where,

F is the externally applied force

m is the mass of an object

a is the acceleration produced

We can say that acceleration is inversely proportional to the mass of an object.

Higher the mass, less will be the acceleration.

So, the model illustrated by Cara and Sam represents Newton's second law of motion.

Hence the correct option is (B).

the potatoes have high sugar concentrations and although these potatoes were different we could seethe effects that their sugar concentrations had in different environments. for example, the potatoes in sample a, were placed in pure water. this created a hypertonic environment and caused the potatoes to draw in water from its surroundings. we saw the opposite happen with the potatoes in sample b when placed in the sodium chloride solution. the potatoes in this case were in a hypotonic solution and therefore lost water to their surroundings.