Answer:
E = 1053.365 J
Explanation:
∴ Q = 440μC * ( 1 E-6 C / μC ) = 4.4 E-4 C
∴ C = k*εo*A / d
∴ k mica = 5.4
∴ εo = 8.8542 E-12 C² / N.m²
∴ A = 6.2cm * 6.2 cm = 38.44 cm² * ( m/100cm)² = 3.844 E-3 m²
∴ d = 2mm * ( m / 1000mm ) = 2 E-3 m
⇒ C = (( 5.4 ) * (8.8542 E-12 ) * ( 3.844 E-3 )) / 2 E-3
⇒ C = 9.1896 E-11 C²/N.m
⇒ E = ( 4.4 E-4 )² / (2*9.1896 E-11)
⇒ E = 1053.365 N.m = 1053.365 J
The vapour pressure of a substance actually differs
relative to the temperature. So to know which compound has the vapour pressure
of 58 kilopascals at 65 degrees Celsius, we refer to standard tables of
temperature vs Vapour pressure.
From the tables or graph, the answer here is:
<span>2. ethanol</span>
Answer:
D
Explanation:
the earth's plates move slowly