Answer:One star can't light up a whole universe
Explanation:It is like saying one light can feel up the whole town which it can't do.
C. Radiosonde is the answer
the above mentioned is not correct
The work done is 375 J
Explanation:
The work done by a force in moving an object is given by

where
F is the magnitude of the force
d is the displacement
is the angle between the direction of the force and the displacement
In this problem,
F = 75 N is the force applied to the couch
d = 5 m is the displacement
Assuming the force applied to the couch is parallel to the motion, 
And so, the work done is

Learn more about work:
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