A. The formula for mean free time is:
t = V/(4π√2 r²vN)
where
N = 1×10¹⁶ molecules (per m³)
V = 1 m³
r = 111×10⁻⁷m (atomic radius of silicon)
Let's solve for v first:
v = √(3RT/M) = √(3(8.314 m³·Pa/mol·K)(25 + 273 K)/28.1 g/mol Si)
v = 16.26 m/s
t = (1 m³)/(4π√2 (111×10⁻⁷m)²(16.26 m/s)(1×10¹⁶ molecules))
<em>t = 2.81×10⁻9 s</em>
<em>Pure silicon has a high resistivity relative to copper because copper is a conductor, while silicon is a semi-conductor. </em>
Answer:
distance is not a vector. it is scalar
Answer:
A.
Explanation:
An electrical circuit is a path in which electrons flow because of voltage.
A. electrical
Answer: (75°C × 9/5) + 32 = 167°F
Explanation: Thats the formula
Friction is affected because they all have to be stong enough to fight against and that requires friction.!∞∞∞∞∞∞∞∞∞∞∞∞∞