Multiple Choice Question (MCQ)
Question: Which year along with CNC systems the commercial industrial robot was manufactured?
A.
1972
B.
1870
C.
1930
D.
1961
Correct Answer: 1961
Explanation
A watt-hour (Wh) is a unit of energy, equal to the energy used by a power of one watt for one hour.
A watt-second (Ws) is a unit of energy, equal to the energy used by a power of one watt for one second.
To convert watt-hours to watt-seconds, we can use the following formula:
Watt-seconds (Ws) = Watt-hours (Wh) x 3600
So 1 watt-hour is equal to 3600 watt-seconds.
So if we have 1 watt-hour, it is equal to 1 x 3600 = 3600 watt-seconds