<span>65W * 8h * 3600s/h = 1.9e6 J = 447 Cal </span>
Agility is the answer. Hope this helps have an awesome day!
Service disconnect
this is the first disconnect device after the utility meter.
Answer: Laser optics is an laser instrumentation that is used to material processing which uses also coatings,substrates,and of different wavelengths of a superior performance
Explanation:
The final speed is 
Why?
To calculate the final speed, we need to know that we are working with an inelastic collision, it means that both bodies stick together after the colission. We can calculate the final speed of the bodies (if exists) using the following equation:

We are given the following information:

So, substituting and calculating, we have:

Hence, the final speed is 1.09 m/s.
Have a nice day!