I believe a vector needs to be set. but no 100% sure!
I hope this helps!
C i’m pretty sure. correct me if i’m wrong :)
Answer:

Explanation:
The density of an object is given by

where
m is the mass of the object
V is its volume
In this problem,
m = 42 kg
V = 22 m^3
Substituting into the equation, we find the object's density:

Answer:
ok I have written in your face check it out fast don't have time see see see fast
The answer is C radio waves are very high energy mechanical waves.