Answer:

Explanation:
As we know that the orbital speed of the satellite is given as

also we know that
time period of the revolution is given as

now from above equation we know that


so we will have

now plug in all data in this equation


I’m lost at this question, sorry but I would’ve help !
when wire is coiled upon a nail then it will posses magnetic characteristics
This is due to the coiled shape it will behave like a solenoid and the magnetic field of solenoid is given as

so here when wire is coiled up on a nail then due to the magnetic field of the coil the nail will attain magnetic characteristic.
so correct answer will be
<em>Possess magnetic properties </em>
Answer:
The definition of acceleration is: Acceleration is a vector quantity that is defined as the rate at which an object changes its velocity. An object is accelerating if it is changing its velocity.
Explanation:
Sorry, I don't know but I think the correct answer is the first option.