Complete Question
The complete question is shown on the first uploaded image
Answer:
The correct answer is option c
Explanation:
Faraday states that when there is a change in magnetic field of a coil of a wire, it means that there exist an emf in the circuit which in induced due to the change in the magnetic flux
From the question two separate but nearby coils are mounted along the axis. First coil is connected to the power supply and the current flow is controlled by the supply.When the current alternates, it would produce magnetic field ,also the second coil is connected to an ammeter which indicates the current that is flowing in it when current in the first coil changes
This magnetic field that is produce would cause a change flux which would induce current in the second coil so the ammeter would indicate current flow in the second coil
a is incorrect because the current in fir coil is not change hence flux won't change therefore current is is not induced in second coil
This is the same reason b is incorrect
d is incorrect due to the fact that when the second coil is connected to a power supply by rewiring it to be in series with first coil the law of electromagnetism would no longer hold so he ammeter would show no reading
As it is given that Bulk modulus and density related to velocity of sound

by rearranging the equation we can say

now we need to find the SI unit of Bulk modulus here
we can find it by plug in the units of density and speed here

so SI unit will be

SO above is the SI unit of bulk Modulus
78.4 F because you do 8.00 muliplyed by 9.8
To solve this problem it is necessary to take into account the concepts related to Centripetal Force and Friction Force.
In the case of the centripetal force, we know that it is defined as

Where,
m=mass
v= velocity
r= Radius
In the case of the Force of Friction we have to,

Where,
Friction Constant
m= mass
g= gravity
According to the information given, the centripetal force must be less than or equal to the friction force to stay on the road, in this way

Re-arrange to find the velocity,



Therefore la velocidad del carro debe ser igual o menor a 42m/s para mantenerse en el camino
They cause an increase in temp of earths atmosphere or warming by absorbing solar energy. hope this helps