Answer:
mass of the neutron star =3.45185×10^26 Kg
Explanation:
When the neutron star rotates rapidly, a material on its surface to remain in place, the magnitude of the gravitational acceleration on the central material must be equal to magnitude of the centripetal acc. of the rotating star.
That is
M_ns = mass odf the netron star.
G= gravitational constant = 6.67×10^{-11}
R= radius of the star = 18×10^3 m
ω = 10 rev/sec = 20π rads/sec
therefore,
= 3.45185... E26 Kg
= 3.45185×10^26 Kg
Answer:
(A). The flux is 0.336 N.m²/C
(B). The flux is zero.
Explanation:
Given that,
Length = 4.2 cm
Width = 4.0 cm
Electric field
Area vector is perpendicular to xy plane
(A). We need to calculate the flux
Using formula of flux
Where, E = electric field
A = area
Put the value into the formula
(B). Given electric field
We need to calculate the flux
Using formula of flux
Put the value into the formula
Here, The component of k is not given
So, the flux is
Hence, (A). The flux is -0.336 N.m²/C
(B). The flux is zero.