The orbital with the lowest energy is 3s.
Answer:

Explanation:

Round to three significant digits

1. In 2010-2011, the temperature decreased. In 2011-present, the temperature started increasing. From 390 to 405+
2. As the more carbon dioxide increases the temperature also increases with it.
i think its a, good luck on your test
Answer:
a) 665 kg.m/s
b) 2.97 kN
Explanation:
The impulse is given by:

where
va=velocity after
vb=velocity before
The velocity just before is given by:

The velocity just after is zero because there wasn't a rebound.
So the impulse is:

The impulse is also given by:
