Her mass Decreases when she goes to outer space.
Distance (skalar) = 4 + 3 = 7 step
displacement = 1 step
Answer:
<h2>a) 2.5 s</h2><h2>b) 1.55 m</h2><h2 />
Explanation:
<h3>Given :-</h3><h2>Completes 2 oscillation in 5s.</h2><h2>A) Time period = ?</h2><h2 /><h2>

</h2><h2 /><h2>

</h2>
<em>Thus 1 oscillation is completed in 2.5 </em><em>s.</em>
<h2>B) If g = 9.8 ms−², find its length.</h2><h2>

</h2><h3>= 2.5s </h3><h3>

</h3><h3>Length = ? </h3><h2>

</h2><h3 /><h3>

</h3>
Thus the length of g = 9.8 ms −² = 1.55m
<h2>
Hope it helps u.......</h2><h2>
STAY SAFE, STAY HEALTHY AND BLESSED .</h2><h2>
HAVE A MARVELOUS DAY AHEAD !</h2><h2>
THANK YOU !</h2>
I believe that the answer is chemical energy.
Answer:
B, to predict star count
Explanation:
the rest can be done with rulers, Einstein cans and public surveys, we can't predict how many stars there will be, but we can take pictures of them instead