Answer: Thermal energy is 8,2 kJ
Explanation: Heat Q = m c ΔT . c = 385 J/kg C and
ΔT = (1085 - 25)C = 1060 C. Q = 0.020 kg · 385 J / (kg C) ·1060 C
= 8162 J
Answer:
Zero, the support force and gravitational force together equal a zero net force
Explanation:
A force because the its pressure
Given the the current flowing in the circuit and the elapsed time, the charge that passes through the LED is 1260 Coulombs.
<h3>What is Current?</h3>
Current is simply the rate of flow of charged particles i.e electrons caused by EMF or voltage.
If a charge passes through the cross-section of a conductor in a given time, the current I is expressed as;
I = Q/t
Where Q is the charge and t is time elapsed.
Given the data in the question;
- Time elapsed t = 1hr = 3600s
- Current I = 350mA = 0.35A
We substitute our given values into the expression above to determine the charge.
I = Q/t
Q = I × t
Q = 0.35A × 3600s
Q = 1260C
Therefore, given the the current flowing in the circuit and the elapsed time, the charge that passes through the LED is 1260 Coulombs.
Learn more about current here: brainly.com/question/3192435
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