Since this situation can be thought of as a direct variation. multiply 20000 with 100 and divide the product with 1500.
Resistance in wires causes thermal energy. The correct
answer between all the choices given is the third choice or letter C. I am
hoping that this answer has satisfied your query and it will be able to help
you in your endeavor, and if you would like, feel free to ask another question.
Answer:
change in entropy is - 5.7627 J/K
Explanation:
Given data
temperature = 22.0°C = 22 + 273 = 295 K
work is done = 1700 J
to find out
change in entropy
solution
we know that change in entropy = Q /T ......1
from 1st law of thermodynamic we know
Q =W for change in internal energy = 0
Q = -1700 J
so from equation 1
change in entropy = - 1700 / 295
change in entropy = - 5.7627
so change in entropy is - 5.7627 J/K
Given: Velocity of light c = 3.00 x 10⁸ m/s
Frequency f = 7.65 x 10⁷/s
Required: Wavelength λ = ?
Formula: λ = c/f
λ = 3.00 x 10⁸ m/s/7.65 x 10⁷/s
λ = 3.92 m
