Recall this formula for a device operating in a direct current circuit:
P = IV
In this equation, P stands for the power emitted by the device, I signifies the current passing through the device, and V represents the voltage drop across it.
Using ampere for current and volt for voltage means that multiplying current by voltage gives you power measured in watts.
Answer:
R=V/I=6/2=3 ohm
time = 5 minutes = 5*60=300 seconds
I=2 A
Energy = I²Rt=(2)²*3*300=4*900=3600 J
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 buoyancy
Hence, 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
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