The law of inertia is the second name for Newton's first law of motion, which states that B) a body in motion will continue in motion unless acted upon by an outside force.
The reason that space crafts do not need to be propelled is because there is no frictional force slowing them down as there would be on earth. This means that the craft keeps moving, according to the law of inertia.
Answer:
The charge to mass ratio is 
Explanation:
We need to find how much charge is contained in the electron per unit of mass, to do this we divide the charge in an electron and the mass of an electron:
The answer to this question is:
C-"That moving clocks run slower"
Your Welcome :)
Ignoring fluid resistance, football will <span>maintain a constant speed until other forces accelerate the football.</span>
<span>When the particles of a medium move with simple harmonic motion, this means the wave is a sinusoidal wave.
Know that a sinusoidal curve can describe either sine or cosine functions (remember your cofunction identities for sine and cosine).</span>
