Answer:
The magnitude of change in momentum of the ball is
and impulse is also
Explanation:
Given:
Velocity of a pitched ball

Velocity of ball after impact

From the formula of change in momentum,

Here mass is not given in question,
Mass of ball is 
Change in momentum is given by,


Magnitude of change in momentum is

And impulse is given by


So impulse and
Therefore, the magnitude of change in momentum of the ball is
and impulse is also
A ball stops because the surface on which it rolls resists its motion. So the ball stops because of friction.
Thank you for posting your questions here at brainly. Beginning at the corner of the floor where the lamp is standing, the dog's head is at a point which is -- 6 feet along the wall towards the kitchen door -- 4 <span>feet across the room towards the garage -- 2 feet up off the floor</span>
Answer:
In hot gases , the atoms keeps colliding with each other and sometimes the energy liberated during collision takes the electron to a higher level,thus, .The object is a cloud of hot gas and finally the electron returns back emitting photon
The ranges of frequency are:
UVA: ![[7.50-9.38]\cdot 10^{14} Hz](https://tex.z-dn.net/?f=%5B7.50-9.38%5D%5Ccdot%2010%5E%7B14%7D%20Hz)
UVB: ![[9.38-10.71]\cdot 10^{14} Hz](https://tex.z-dn.net/?f=%5B9.38-10.71%5D%5Ccdot%2010%5E%7B14%7D%20Hz)
Explanation:
The relationship between frequency and wavelength for an electromagnetic wave is the following:

where
f is the frequency
is the speed of light
is the wavelength
For the UVA, the range of wavelength is 320 nm - 400 nm, so

So the corresponding frequencies are

For the UVB, the range of wavelength is 280 nm - 320 nm, so

So the corresponding frequencies are

So the ranges of frequency are:
UVA: ![[7.50-9.38]\cdot 10^{14} Hz](https://tex.z-dn.net/?f=%5B7.50-9.38%5D%5Ccdot%2010%5E%7B14%7D%20Hz)
UVB: ![[9.38-10.71]\cdot 10^{14} Hz](https://tex.z-dn.net/?f=%5B9.38-10.71%5D%5Ccdot%2010%5E%7B14%7D%20Hz)
Learn more about waves, frequency and wavelength:
brainly.com/question/5354733
brainly.com/question/9077368
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