Explanation:
(a) v = 2π r / t
v = 2π (0.85 m) / (0.65 s)
v = 8.2 m/s
(b) a = v² / r
a = (8.2 m/s)² / (0.85 m)
a = 79 m/s²
(c) F = ma
F = (0.013 kg) (79 m/s²)
F = 1.0 N
The second one because the zeroes in the middle count. 2.0002
1b) the atom could lose its valence electron
c) protons are equal to electrons so there is no need to include it
d) the atom would need to gain electrons to fill its valence shell to become negative
<span>vibrations that travel through the air or another medium and can be heard when they reach a person's or animal's ear.</span>
Answer: You could tell if you made an error in your calculations by repeating the steps.
Speed of light is the fastest/maximum in vacuum which is equal to 3 × 10^8 m/s, therefore speed of light through any material equal to 4 × 10^8 m/s is physically and theoretically impossible and therefore incorrect.
Explanation:
