A charged capacitor connected to an inductor causes a current to flow through the inductor until the capacitor is fully discharged. The current in the inductor, in turn, charges up the capacitor until the capacitor is fully charged again. If Q(t) is the charge on the capacitor at time t, and I is the current, then

I=dQdt.

If the circuit resistance is zero, then the charge Q and the current I in the circuit satisfy the differential equation

LdIdt+QC=0,

where C is the capacitance and L is the inductance, so

Ld2Qdt2+QC=0.

Then, just as as a spring can have a damping force which affects its motion, so can a circuit; this is introduced by the resistor, so that if the resistance of the resistor is R,

Ld2Qdt2+RdQdt+1CQ=0.

If L=1 henry, R=23 ohm, and C=9 farads, find a formula for the charge when

(a) Q(0)=0 and Q?(0)=7:

Q(t)=

(b) Q(0)=7 and Q?(0)=0:

Q(t)=

i would think klcio3

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

wind moving at higher speeds will transfer more energy to the water, resulting in stronger waves.

we're given that v₀ = 0 and a = 5.4 m/s². therefore, since v = at + v₀ for constant acceleration the equation for velocity is

after 28s,

m/s

which i would round to 150 m/s as my final answer