Answer:
Explanation:
A scientific theory can be said to mean a set of statements that are developed through a process of continued abstractions. These theories are aimed at a generalized statement usually used in explaining a phenomenon. A theory is quite concerned about the truth, much more than being understood. They are not expected to be stories
A model, on the other hand, is a purposeful representation of reality. They provide a local understanding of any given phenomenon. Models are more particular about being understood, rather than the truth
Answer: find the answer in the explanation
Explanation: The potential energy in a circuit between two points is the workdone in taking units positive charge from one point to the other in the circuit. Its S.I unit is Joule.
Because voltage of a battery or cell in a circuit is the potential energy difference across its terminal
The potential energy difference between two points is one volt, if the workdone in taking one Coulomb of positive charge from one point to the other is one Joule.
Answer:
Explanation:
acceleration is defined as the rate of change of velocity per unit time. Therefore, acceleration, 
where 
is change in velocity and t is time
Substituting initial and final velocities with 25 m/s and 10 m/s then using time as given in the question of 3 s then
Therefore, the acceleration is
Answer:
3rd choice
Explanation:
heat is transfered causing it to melt
Explanation:
Below is an attachment containing the solution.
