The force required to change an object's motion depends on the object's mass. True or False ​

true

Explanation:

because Inertia is reluctance of an object to change its initial state of rest or motion due to its MASS ,

so mass is a factor that affects motion

the higher the mass , the higher the reluctance to change its motion, the higher the inertia

hope this helps,

please mark

c)as speed changes, wavelength and frequency change.

everything changes!

d.7.5cm is your answer