Answer:
density is defined as the amount of mass contained in unit volume of a body .its si unit is kg/m*3
Answer: A
Explanation:
honestly, it sounded the best
The appropriate expression for the calculation of power by relating the angular energy in a given time.
In other words the instantaneous power of an angular accelerating body is the torque times the angular velocity

Where
Torque
Angular speed
Our values are given by


The angular velocity must be transformed into radians per second then


Replacing,



The average power delivered by the engine at this rotation rate is 211.1kW