Answer:
11.3 m/s
Explanation:
KE₁ = KE₂
½m₁v₁² = ½m₂v₂²
½ (2 kg) v² = ½ (4 kg) (8 m/s)²
v ≈ 11.3 m/s
The number of heat units needed to raise the temperature of a body by one degree.
The answer is B. Friction is going to the RIGHT because friction works against where you are trying to go
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