Answer:
maybe you shouldn't type random stuff as answers to earn free points. so here's karma
The correct answer is D.
Explanation:
Im pritty sure;)
18m
v=frequency × wavelenght
wavelength=v/f
wavelength=360÷20
=18m
B. 36 lb
m = 160/9.8 = 16.3 kg
16.3 kg ( 2.205 lb/kg) = 36 lb
