Answer:
Answer
F=G×
d
2
m×M
m = 50 kg
M = 120 kg
Distance, d = 10 m
G=6.7×10
−11
Nm
/kg
F=6.67×10
×
10
50×120
F=6.67×60×10
F=4.02×10
9
N
because it causes echoes walls are good reflectors of sound
Explanation:
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