Theories have both an explanatory an a predictive function. True
#4 is correct.
For #5, don't get all tangled up. Just close your eyes, breathe deeply, and murmur "F equals M A. Force equals mass times acceleration."
The force is 15N. The mass is 12kg. You really shouldn't have any trouble calculating the acceleration.
C. amphibian eggs do not contain a protective shell
Answer:
all chemical reaction involved in early enough energy used to break bonds in reactants and energy released when you want from product
Edith a remake reaction absorb energy and epidemic reaction release energy flow of conversion of energy states that matter cannot be created or destroyed .
Explanation:
Given that,
Distance between two parallel wires, d = 3.55 cm
Force per unit length, 
Current in one wire, I = 4.8 A
(a) The force acting per unit length in the wire is given by :

Substituting all the values in above formula to find I₂ as:


(b) Since, it is given that the two conductors repel each other, it means that the current is flowing in opposite direction.
(c) If the direction of current is reversed, they will start attracting towards each other and it the one current is doubled, the force per unit length will gets doubled.