Answer: t = 0.492τ
Explanation: In a circuit where there is a resistor and a capacitor, the equation for a charging capacitor is given by:
where:
is the equilibrium charge
q is the charge at time t
RC is time constant also called τ (tau)
For this problem, the circuit is charged to 39%, which means: q = 
0.39 = 1 - 
= 0.61
= ln(0.61)
-t = ln(0.61)τ
t = 0.492τ
For the condition to be met it is needed 0.492 time constants must elapse.
D. potential energy, because there is a bunch of water pent up, essentially stationary, waiting to roll down the steep mountain from the peak, so to say. if the dam were to be removed it would become kinetic.
No...and even if it did the present that you are in would not be the same...theres no need for time machine because whatever happens , happens for good because its from GOD.
Which type of energy is converted into mechanical energy when a person walks?
A. Electromagnetic
B. Electrical
C. Nuclear
D. Chemical
That is Chemical, This is because the energy comes from the food we eat and our fat stores and thus it comes from a chemical form.
Answer: B, increase the rate at which he turns the crank
Explanation: i got it right
