Answer:
True
Explanation:

As one drive away from the radio station, the recession velocity increases and causes the apparent wavelength to increase accordingly, which in turn causes the True wavelength received from the radio station to increase as well because of their direct relationship as shown in the equation above.
Answer:
Utilization, effects
Explanation:
The conductors that carry the current to electrical devices and utilization equipment are the heart of all electrical systems. There are associated effects whenever current flows through a conductor.
Answer:
The hoop
Explanation:
We need to define the moment of inertia of the different objects, that is,
DISK:

HOOP:

SOLID SPHERE:

HOLLOW SPHERE

If we have the same acceleration for a Torque applied, then


The greatest momement of inertia is for the hoop, therefore will require the largest torque to give the same acceleration
I think this might be the answer let me know 0.2 g/cm^3