Since the greatest number in the given electron configuration of the atom is 4, it means that the element is found in the fourth energy level. The number of electrons found in the valence shell is 2+10+6 = 18. From this answer and using the periodic table, we can see that the atom is that of Krypton (Kr).
Power = Force x Speed
3.4e2 = F(7.5e-2)
Solving for F
F = 4533.3N
Answer:
0.44
Explanation:
Poisson's ratio is:
ν = (3K − E) / 6K
where K is the bulk modulus and E is Young's modulus.
Young's modulus is:
E = FL / (AΔL)
where F is the force, L is the initial length, A is the cross sectional area, and ΔL is the change in length.
E = (20 kg × 9.8 m/s²) (1.7 m) / (π (0.02 m)² × 0.0005 m)
E = 0.530×10⁹ Pa
Bulk modulus is:
K = -ΔP / (ΔV/V)
where ΔP is the change in pressure, ΔV is the change in volume, and V is the initial volume.
K = -(180 atm × 101325 Pa/atm) / (-0.012)
K = 1.52×10⁹ Pa
Therefore, the Poisson's ratio is:
ν = (3(1.52×10⁹ Pa) − 0.530×10⁹ Pa) / 6(1.52×10⁹ Pa)
ν = (3(1.52) − 0.530) / 6(1.52)
ν = 0.442
Rounded to 2 significant figures, the Poisson's ratio is 0.44.
<span>A match stick will not catch fire when it is rubbed against cemented wall because a </span><span>cemented wall has too much friction and the match stick will break when rubbed against the wall since the match stick doesn't need that much of friction to burn itself.
--------------------hope it helped you-------------------</span><span>
</span>************plz mark the brainliest*************
It keeps moving for just a few seconds because of inertia. Say you are going 50 miles down the interstate there is a stop sign when you stop you almost come out of your set that is why we have to wear set belts and that is an example of Inertia. Glad to help
