Transform boundary USJSJSSOAKAMAMXMXHDJEUSUS
Answer:
emission line or absorption line
Explanation:
A spectral line is uniform bands of bright and dark fringes. visible spectrum are just due to string spectral line which is unique for a different element.
when there is the transmission of an electron from one energy to another ( higher to lower energy level), there is the emission of photons that lead to emission-line on the spectrum while on the other side, the absorption line is formed when electron moves to the next level by absorbing electron.
Answer: None of the options
Explanation:
When we talk about uniform circular motion (constant speed) we yet have a changing velocity and therefore, acceleration.
How is this possible?
Well, velocity is a vector, and as a vector it has magnitude (the speed) and direction. So, while an object performs a uniform circular motion, althought its speed is not changing, its direction does change.
And, since acceleration is the variation of velocity in time , certainly there is acceleration here.
On the other hand, Inertia is mathematically expressed as:
This means that for a system with a given axis of rotation and a given total mass , the greater the distance from the axis to the object that performs the circular motion, the greater the inertia.
This also means that inertia depends directly on the mass of the system and the radius of the circular motion, therefore, as long as these elements exist, in a circular motion the inertia will always be different from zero.