Answer:
1 both increase
2. highest to lowest A C D B
3 the kinetic energy is higher in the larger vehicle as they have the same speed
Explanation:
Answer:

Explanation:
Since the surface is frictionless, momentum will be conserved. If the bullet of mass
has an initial velocity
and a final velocity
and the block of mass
has an initial velocity
and a final velocity
then the initial and final momentum of the system will be:


Since momentum is conserved,
, which means:

We know that the block is brought to rest by the collision, which means
and leaves us with:

which is the same as:

Considering the direction the bullet moves initially as the positive one, and writing in S.I., this gives us:

So kinetic energy of the bullet as it emerges from the block will be:

It is in its ground state when its orbital electron is at its lowest energy amount.
OK.
You're sitting in a soft comfy chair, reading a book in your lap.
The book stays put, and you eventually start to get sleepy, because
there's almost no acceleration happening.
The chair you're sitting in is seat #27B in a huge jet taking you to visit
your grandparents who live a thousand miles away.
The airplane is maybe 7 miles up, passing over the ground at nearly
500 miles per hour, flying straight, level, and fast !
<span>Infrared radiation also called as infrared light was discovered by Sir William Herschel in 1800.It is an electronic magnetic radiation with longer wavelengths than those of a visible light.It involves waves rather than particles. It lies at frequencies just below the frequencies of visible light.</span>