I believe you are correct, it is B: Diagnostic Services.
Diagnostic services are services like the staff at hospitals and the people who run machines that are related to medical needs.
<em>If this is incorrect, please, don't refrain to tell me.</em>
I believe the process you have described is known as an 'experiment'.
Explanation:
PE= mgh
6 J= (3m) (9.81 m/s2) (mass)
mass=( 6)/(3×9.81)
mass= 0.20 Kg
Well, actually a heat engine using the Carnot cycle whose cold reservoir is maintained at 0 K could in principle be 100% efficient, even if the hot reservoir was merely at the ambient temperature. Since it costs no energy at all to maintain a heat reservoir at the ambient temperature as long as you have a perfect thermal connection to a large thermal capacitor like your swimming pool or a nearby aquifer you’d have built a perpetual motion machine.
Answer:
False, the angular momentum problem is not one of the objections to the solar nebular theory.