Answer:
The correct option is D
Explanation:
This question is incomplete because of the absence of the setup which as been attached below. The setup shows/determines/tests the friction of wood (which is a block material), since Jerry wants to test the friction between different types of materials, he will have to replace the wooden block with another type of block material of choice so as to determine the friction of that also.
In order to have a comprehensive experiment, Jerry can use 4-5 different types of block material in the course of the experiment.
Answer: physiological
ADJECTIVE
relating to the branch of biology that deals with the normal functions of living organisms and their parts.
"physiological research on the causes of violent behavior"
relating to the way in which a living organism or bodily part functions.
"slow down your body's physiological response to anger by breathing deeply"
Explanation:
The force applied on the football is 2.15 Newton.
Given the data in the question;
- Mass of football;

- Acceleration;

Force applied; 
To determine the force applied on the football, we use Newton's laws of motion:

Where m is the mass of the object and a is the acceleration.
We substitute our given values into the equation

Therefore, the force applied on the football is 2.15 Newton.
Learn more: brainly.com/question/2388393
Answer:
I think it is velocity.
because velocity shows the direction and magnitude .
I think 11 is B! 12 is A! 13 is B and 14 is A