Answer:
Explanation:
Given
weight of block 
A force is of 
is applied on the block
As 1 N is less than weight of block so block exert Force less than its weight
So Block exert a force of 2 N downward on floor
If you use the stairs at normal speed, you will survive longer, and go up higher.
When going up the stairs twice as fast, you lose energy more quickly, but height would remain the same.
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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