Formula for kinetic energy is 1/2mv^2 so that answer should most probably be 94521.6J
The answer is d. Vacuum
Sound waves need a molecul to travel through. Gas , solid, annd liquid provide that medium.
But vacuum is just an empty space withour any moleculs in it.
Thats why in space, no one can hear you scream. Because it simply not physicsly possible
Gradpoint? The answer is B
Answer:
T=9.4 N
Explanation:
We are given that
Mass of wire,m=16.5 g=
kg
1 kg=1000g
Length of wire,l=75 cm=
m
1 m=100 cm
Wavelength of transverse wave=
m
Frequency=
Mass per unit length=


Where
frequency of wave
=Wavelength of wave
Speed of wave=v
Using the formula




Using the formula

Hence, the tension,T=9.4 N