See from periodic table the proton or atomic number of elements u want to know about then as u know first electron shell can hold 2 electrons 2nd can hold eight as well as all others........protons are equal to electrons so divide proton number into shells but remember to use amounts which it can hold
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Answer:
0.232 mm.
Explanation:
Power, P = 96 W
Voltage, V = 120 V
Length of wire, l = 4.2 m
Let r be the radius of the wire.
Resistivity of nichrome, ρ = 1.5 x 10^-6 ohm metre
P = V^2 / R
R = 120 x 120 / 96 = 150 ohm
r = 1.16 x 10^-4 m
Diameter = 2 x r = 2 x 1.16 x 10^-4 = 2.32 x 10^-4 m = 0.232 mm
Thus, the diameter of the wire is 0.232 mm.
The answer will be C based on what I had researched
Ok so you convert minutes to hours and multiply by 74 which gives 32.1km and the same goes for the 40 min which is 40/60 hours
and multiply that by 31 which is 21.7 km and for the 14 min it’s 14/60 times 27 which is 6.3 adding up all the kilometers gives you 32.1+21.7+6.3 and then you add all the minutes 26+40+14+12 which is 92 divide that by 60 and you get 1.53 hours and the km are 60.1, 60.1/1.53 gives us 39.3km/h.
