Inertia: tendency of an object to resist changes in its velocity. An object at rest has zero velocity - and (in the absence of an unbalanced force) will remain with a zero velocity. Such an object will not change its state of motion (i.e., velocity) unless acted upon by an unbalanced force.
Answer:
Nine times
Explanation:
= Initial compression of the spring = 8 cm = 0.08 m
= Final compression of the spring = 24 cm = 0.24 m
= Spring constant of the spring
Initial spring energy is given as

Initial spring energy is given as

Answer: D. They are the coldest stars.
Explanation:
Hi there!
Using the equation for the electric field produced by an infinite sheet of charge:

E = Electric field strength (150 N/C)
σ = Surface charge density (? C/m²)
ε₀ = Permittivity of free space (8.8542× 10⁻¹² C²/Nm²)
We can rearrange the equation to solve for the surface charge density (charge per unit area)
