Answer:
c
Explanation:
in food and batteries chemical energy is stored :) hope this helped
I cannot see all the questions, what is 18,19 and 21? (:
Answer:
The Earth Revolves around the sun because the Earth Tilts<u>,</u> we have night and day.
Explanation:
Hope this helps! <3
Answer:
13.4225 g/cm³
Explanation:
Given that:
Linear expansivity α = 2 * 10^-5
Change in temperature dt = t2 - t1 = (150 - 25)°c = 125°c
Initial density (d1) = 13
New density d2 =?
Using the relation :
α = (d2 - d1) / d1 * dt
d2 - d1 = d1 * dt * α
d2 = d1 + d1*dt*α
d2 = d1(1 + d1*dt*α)
d2 = 13( 1 + (13*125*2*10^-5))
d2 = 13(1 + 0.0325)
d2 = 13(1.0325)
d2 = 13.4225
d2 = 13.4225 g/cm³
Answer:
0.0360531138247 V/m
Explanation:
= Resistivity of gold = (General value)
I = Current = 940 mA
d = Diameter = 0.9 mm
A = Area =
E = Electric field
Resistivity is given by
The electric field in the wire is 0.0360531138247 V/m