Answer:
<h2>A. 80 m/s </h2>
Explanation:
The velocity of the spacecraft can be found by using the formula

p is the momentum
m is the mass
From the question we have

We have the final answer as
<h3>80 m/s</h3>
Hope this helps you
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:
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Answer:
when all else remains the same, what effect would decreasing the focal have known a convex lens
Explanation:
It would cause the lens to produce only real images
( Hope This Will Help U Out!!)
Power=work/time
So,
Power =450/50=9watts