To tackle this problem, one must utilize the ideas related to the rate of heat flux defined in energetic terms. The heat transfer rate signifies the quantity of heat moved per time unit through a specific material. This can be calculated mathematically in the following manner:
Where
k = 0.84 J/s⋅m⋅°C (This is the thermal conductivity of the substance)
Area
Length
= Temperature of the "hot" reservoir
= Temperature of the "cold" reservoir
Substituting our specific values provides us with,
Thus, the accurate option is B.
As the parachutist is descending at a steady rate
we can conclude that
Acceleration indicates the change in velocity
given the constant velocity in this scenario
Thus, in this situation, we find the acceleration to be zero
It’s understood from Newton's second law
where a is equal to 0
Here, the force due to gravity
equals the force due to buoyancyHence, we can deduce
therefore
as such the upward force is counteracted by the downward force.
Answer:
Explanation:
The overall energy expenditure of the salmon, which corresponds to its swimming upstream effort, , is linked to its specific mechanical power.
calculated per unit mass can be derived from the following equation:
As a result, the total energy utilized during the 22-day journey is 7.603 MJ