Answer:
Explanation:
Given
Two masses M and 2 M with velocity v in opposite direction
After collision they stick together
Initial momentum

final momentum

Conserving momentum



i.e. system moves towards the direction of 2M mass
Initial kinetic Energy 

Final Kinetic Energy 
loss of Energy


Answer:
True
Explanation:
In Massachusetts it's illegal to drive while texting or on your phone.
Answer:
Option B: Increase the voltage, while keeping the resistance constant.
Explanation:
Current is directly proportional to voltage, but indirectly proportional to resistance.
Answer:
K. E = 6.0796 × 10^ -21 Joule
Explanation: see attachment
Answer:
When you have a cloudy night, the clouds prevent heat from escaping through the atmosphere and into space.
The clouds act like a blanket and trap the heat it, and that is why every time you have a cloudy night, it is always warmer than a clear night.