Answer:
K. E = 6.0796 × 10^ -21 Joule
Explanation: see attachment
Answer:
The mass of the massive object at the center of the Milky Way galaxy is
Explanation:
Given that,
Diameter = 10 light year
Orbital speed = 180 km/s
Suppose determine the mass of the massive object at the center of the Milky Way galaxy.
Take the distance of one light year to be 9.461×10¹⁵ m. I was able to get this it is 4.26×10³⁷ kg.
We need to calculate the radius of the orbit
Using formula of radius
We need to calculate the mass of the massive object at the center of the Milky Way galaxy
Using formula of mass
Put the value into the formula
Hence, The mass of the massive object at the center of the Milky Way galaxy is
Answer:
The new force will become 1/4 times of the initial force.
Explanation:
The Coulomb force between two charges is directly proportional to the product of charges and inversely proportional to the square of the distance between them.
It can be given by :
....(1)
r is distance
If we decrease the r by a factor of 2, r'=2r.
New force will become,
So, the new force will become 1/4 times of the initial force.
Average speed = (distance covered) / (time to cover the distance).
Distance covered = 437 km = 437,000 meters
Time to cover the distance = (7.27 hrs) x (3600 sec/hr) = 26,172 seconds
Average speed = (437,000 meters) / (26,172 seconds)
Average speed = 16.7 m/s