Answer:
Ос.
The spacing between particles increases.
Heat causes greater particle activity, and the particles
are farther apart.
Answer: Fluorine
Explanation: The reason being is because... Since Fluorine has a great amount of electromagnetically it reacts at greater amounts. than phosphorus.
Answer:
Mass = 4152kg
Explanation:
Given
L = 208m
I = 154A
V = 0.245V
Density = 3610 kg/m3
ρ = 4.23 x 10-8Ω·m = resistivity of wire
Resistance R = ρL/ A
R = voltage / current = V/I = 0.245/154 = 1.59×10-³ohms
1.59×10-³ = 4.23 x 10-⁸×208/A
Rearranging,
A = 4.23 x 10-⁸×208/1.59×10-³
A = 5.53×10-³m²
Mass = density × volume
Volume = L×A = 208×5.53×10-³m³= 1.15m³
Mass = 3610×1.15 = 4152kg
When there are two currents flowing in opposite direction the magnetic field are moving in the same directions. When the currents flow in the same direction the magnetic field will be opposite, causing the wires to attract.
Answer:
S = 2461.53 [kJ]
Explanation:
The change in entropy in a process such as melting can be calculated by means of the following expression.
![S=\frac{H*m}{T}](https://tex.z-dn.net/?f=S%3D%5Cfrac%7BH%2Am%7D%7BT%7D)
where:
S = entropy [kJ]
H = fusion heat = 3.36*10¹ [J/kg]
m = mass = 0.02 [kg]
T = temperature in kelvin = 273 [K]
![S = \frac{0.02*3.36*10^{1} }{(273+0)}\\S = 2461.53 [kJ]](https://tex.z-dn.net/?f=S%20%3D%20%5Cfrac%7B0.02%2A3.36%2A10%5E%7B1%7D%20%7D%7B%28273%2B0%29%7D%5C%5CS%20%3D%202461.53%20%5BkJ%5D)