<u>Answer:</u>
The correct answer option is C. Kinetic energy from vibration.
<u>Explanation:</u>
The energy of the random motion of the particles of an object is referred to as the internal energy of that object (substance). So the type of energy that makes up most of the internal energy of a solid substance is kinetic energy from vibration.
Internal energy is related to the temperature. When heat is supplied to an object, the molecules vibrate and energy of these molecules increases.
Part A.
In order for the net magnetic field at the center of the circles to be zero, the individual magnetic fields produced by the wires must cancel each other. So in terms of direction, they must be opposite. The answer is:
<span>The currents direction must be counterclockwise
Part B
We have the relationship:
I</span>₁<span>/D</span>₁<span> = I</span>₂<span>/D</span>₂<span>
10/24 = I</span>₂/38
I₂ = 15.83 A
Answer:
U1 = U2 since the temperature inside the balloon does not change
Q1 - W1 = Q2 - W2
Work done by the balloon = W2 - W1 (on the environment)
W2 - W1 = Q2 - Q1 = 75 J heat put into balloon
So the balloon does 75 J on the environment
<span>The length of the year is equivalent to the time it takes for the earth to go around the sun one time.</span>