1 Joule IS 1 newton-meter.
A galaxy consist of billions of stars that contains gases and dust held together by gravity.
Answer:
20.4
Explanation:
Given:
y₀ = 0 m
v₀ = 20.0 m/s
v = 0 m/s
a = -9.80 m/s²
Find: y
v² = v₀² + 2a (y − y₀)
(0 m/s)² = (20.0 m/s)² + 2 (-9.80 m/s²) (y − 0 m)
y = 20.4 m
<span>Answer:
v = sq-root 2*11.5*9.8 ( m/s )
v = 14 m/s</span>
