Lighting is the static electricity stored in the clouds that is disposed to the earth.
Answer:
The distance of the object to the center of the earth increases.
Explanation:
The acceleration due to gravity on Earth is given by:
where
G is the gravitational constant
M is the Earth's mass
r is the distance of the object from the Earth's centre
We notice that:
- g does not depend on the mass of the object
- g is inversely proportional to r
This means that if the distance of the object from the Earth's centre increases, g decreases. So, the correct option is
The distance of the object to the center of the earth increases.
B- lack of control.
the scientists did not have a proper control group.
The speed of sound at sea level is 340.29 m/s (meters per seconds).