Answer:
Explanation:
Given that
An isotropic point source emits light at a wavelength = 500 nm
Power = 185 W
Radius = 380 m
Let's first calculate the The intensity of the wave , which is =
=
=
=
Now;
The amplitude of the magnetic field is calculated afterwards by using poynting vector
i.e
The magnetic field wave equation can now be expressed as;
Taking the differentiation
The maximum value ;
where ;
then
The two major types of energy is option d, kinetic and potential energy.
Answer:
4058.48594 m/s
Explanation:
M = Mass of Mars =
G = Gravitational constant = 6.67 × 10⁻¹¹ m³/kgs²
= Initial velocity = 2910 m/s
= Final velocity
m = Mass of satellite
= Initial distance of satellite =
= Final distance of satellite =
The kinetic and potential energy of the system is conserved
Final velocity is 4058.48594 m/s
Answer:
a. The magnitude of the magnetic field is changing.
b. The magnetic field is changing direction with respect to the bracelet.
c. The bracelet is moving in the magnetic field.
Explanation:
Magnetic flux is a measure of the total magnetic field that passes through a given area. The value of the flux depends on the magnitude of the magnetic field, the area it crosses and its orientation relative to the magnetic field. Therefore, all three reasons are valid.