Answer:
A hypothesis is an idea or explanation that you then test through study and experimentation.
Ok, condensation is part of the water cycle. Acid rain comes from acidic air pollution. Burning fossil fuels is a green house gas that contributes global warming. I'd have to go with B.
Answer:
D) 0.33 m/s² to the right
Explanation:
Apply Newton's second law. Take right to be positive and left to be negative.
∑F = ma
20 N − 5 N = (45 kg) a
a = 0.33 m/s²
The couch accelerates at 0.33 m/s² to the right.
