Ms. Howard's science class looked at the group of stars called the Big Dipper, They watched it in the early evening during fall
and spring. This is what
they saw:
Fall- upright and low in the sky
Spring - upside down and high in sky
Why does the position of the Big Dipper change during the year?
O A Earth revolves around the Sun,
OB. The position of the Moon is different in the fall than in the spring.
O C. The Big Dipper is made of different stars in the fall than in the spring.
OD. The Big Dipper moves toward Earth in the fall and away in the spring.
they saw:
Fall- upright and low in the sky
Spring - upside down and high in sky
Why does the position of the Big Dipper change during the year?
O A Earth revolves around the Sun,
OB. The position of the Moon is different in the fall than in the spring.
O C. The Big Dipper is made of different stars in the fall than in the spring.
OD. The Big Dipper moves toward Earth in the fall and away in the spring.
1 answer:
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Explanation:
The electric field at a distance r from the charged particle is given by :
k is electrostatic constant
if r = 2 m, electric field is given by :
If r = 1 m, electric field is given by :
Dividing equation (1) and (2) we get :
So, at a point 1 m from the particle, the electric field is 4 times of the electric field at a point 2 m.