Answer:
Distance of the object from eye is approx 4.52 m
Explanation:
As we know that the object subtend a small angle on both the eyes which is given as

now we know that the distance between two eyes is given as
d = 7.50 cm
so we have

so here the radius is same as the distance from eye while arc is the distance between two eyes
so we have


The answer is number two, number four, and number one
professional is the answer
3rd
Answer:
Explanation:
Given
Power Supplied
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Efficiency of the motor 
and 



So, vacuum cleaner delivers a power of 