Explanation:
If the fourth pupil has a mass of x, and the fifth pupil has a mass of x+5, then the mean mass is:
51 = (49 + 53 + 52 + x + x+5) / 5
255 = 159 + 2x
x = 48
x + 5 = 53
The fourth pupil has a mass of 48 kg.
The fifth pupil has a mass of 53 kg.
Hi there!
Recall:
Impulse = Change in momentum
I = Δp = mΔv = m(vf - vi)
Let the direction TOWARDS the floor be POSITIVE, and AWAY be NEGATIVE.
Plug in the givan values:
Δp = 1.5(-10 - 12) = -33 Ns
**OR, the magnitude: |-33| = 33 Ns
Answer:
Well I don't think there is a specific answer for that, but a lot of under the age children do drink and smoke,because these days,their parents either don't care, and some just don't know about it. Many kids drink and smoke these days and I don't think there is a on point percentage.
Explanation: Hope this helps and have a good day!!!
Answer : The wavelength of photon is, 
Explanation : Given,
Energy of photon = 
Formula used :

As, 
So, 
where,
= frequency of photon
h = Planck's constant = 
= wavelength of photon = ?
c = speed of light = 
Now put all the given values in the above formula, we get:


Conversion used : 
Therefore, the wavelength of photon is, 
Answer:
The state of being without reliablr access to a sufficient quantity of affordable, nutritious food