Explanation:
The given data is as follows.
= 120 V,
= 6.50 V
= 400,
= ?
Formula to calculate the number of turns in secondary coil are as follows.

Putting the given values into the above formula as follows.


= 21.66
= 22 (approx)
Thus, we can conclude that number of turns in the secondary coil are 22.
Answer:
normal force, the pluck will move off in a different direction
Explanation:
The x component of the force is 8.4N * cos(31°) = 7.2N (2 s.f.)
Answer:
2400 cm
Explanation:
The milky way has diameter of 100000 light years.

The local group is the collection of galaxies which includes the milky way.
10 million light years is the diameter of the local group.

Hence, the diameter of the scale model of the local group would be 2400 cm