Answer:
Factors that affect the strength of electromagnets are the nature of the core material, strength of the current passing through the core, the number of turns of wire on the core and the shape and size of the core.Nov 28, 2020
Explanation:
the answer is c
momentum formula = Mass × Velocity
acceleration of the rocket is given as
As we know that rocket starts from rest and then reach to final speed of 447 m/s after t = 1 min
so we have