A. 1 mol is 6.02 × 10^23 of something.
C. The mass of 1 mol is the same as the atomic mass in grams.
The potential energy has turned into kinetic energy and energy is not lost on the box, some is lost to friction, but most of it is still kept.
Answer:
-4.71 m/s
Explanation:
Given:
y₀ = 1.13 m
y = 0 m
v₀ = 0 m/s
a = -9.8 m/s²
Find: v
v² = v₀² + 2a (y − y₀)
v² = (0 m/s)² + 2(-9.8 m/s²) (0 m − 1.13 m)
v = -4.71 m/s
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