It means “the study of.” Think of it:
Those are subjects you study. It makes more sense than the other choices.
A. The kitten shivers like she’s cold
those link share ppl are SOOOOOO ANNOYING
The formula of work is Work (Joules)=Force (Newtons) · distance in the direction of the force (meters), therefore its just a matter of replacing factors.
Work done = 12 · 4.5= 54 joules
D
Molecular motion increases as temperature increases and therefore increasing the molecular motion increases collision frequency.
Explanation:
When a substance is heated, its molecules gain increased kinetic energy even as the substance increases in temperatures. With higher kinetic energy, this means the molecules are moving more rapidly and hence collision between the molecules will be more frequent and of higher energy. It is these high energy collisions that cause the molecules to move further away from each other with increased temperatures (why substances expand).
Learn More:
For more on relationship between temperatures and molecular motion check out;
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The sub-atomic particles inside the nucleus of atoms of any element are protons and neutrons. Protons have a positive charge and neutrons are neutral with no charge.
