Answer:
The set of frequencies of the electromagnetic Waves emitted by the atoms of an element is called emission spectrum.
The correct answer is letter A. star. <span>A ball of gas becomes a STAR when nuclear fusion begins in its core.</span>
Answer:
The height reached by the material on Earth is 91 km.
Explanation:
Given that,
Mass 
Radius = 1821 km
Height 
Suppose we need to find that how high would this material go on earth if it were ejected with the same speed as on Io?
We need to calculate the acceleration due to gravity on Io
Using formula of gravity

Put the value into the formula


Let v be the speed at which the material is ejected.
We need to calculate the height
Using the formula of height

Using ratio of height of earth and height of Io


Put the value into the formula





Hence, The height reached by the material on Earth is 91 km.
Answer:
1) Id say the dependant is the distance
2) the force is calculated by dividing the mass by 100
Explanation:
the dependant variable is the variable you measure wich is in this case distance.
Answer:

Explanation:
you mean deceleration right ? because the acceleration is 250m/s