If a capacitor's dielectric constant is vacuum its dielectric constant is k will be equal to 1.
<u>Explanation:</u>
Relative permittivity of a dielectric substance is referred to as its dielectric constant. Relative permittivity/dielectric constant k is a dimensionless quantity that is the ratio of absolute permittivity and vacuum permittivity.
It is given by the expression
k=k=ε /ε0
where ε denotes absolute permittivity and ε0 denotes permittivity of vacuuum.
Absolute permittivity ε of vacuum= ε0
therefore k= ε0/ ε0=1
dielectric constant of vacuum is 1 .
It is a comet that was a comet
To solve the exercise it is necessary to use the reciprocal Lorenz factor of the special theory of relativity with the pulse rate.

Where,
Pulse rate measured by earth observed
Reciprocal Lorenz Factor

Here v is the velocity and c the light speed.
PART A) For the given values we can replace it at the previous equation,



PART B ) If the speed of vehicle is 0.94c:



The awnser is tranverse wave
hope that helps
It’s D. An enlargement (hope this helps!)