It has been suggested that a heat engine could be developed that made use of the fact that the temperature several hundred meters beneath the surface of the ocean is several degrees colder than the temperature at the surface. in the tropics, the temperature may be 6 degrees c and 22 degrees c, respectively. what is the maximum efficiency (in %) such an engine could have?

efficiency = 5.4%

Explanation:

Efficiency of heat engine is given as

now we will have

so we will have

now we know that

so we have

so efficiency is 5.4%

depends on what you mean by "group." for order, it would be coleoptera (beetles). for class, it would be insecta (insects). for phylum, it would be the arthropoda (animals with jointed exoskeletons).

explanation:

here we know that ball will drop down by total distance 3.2 m

so here we know that

now using kinematics

now in the same time it will cover horizontal distance of 0.75 m

so speed of the ball will be