A1 uf parallel-plate capacitor is charged to 12 v and then disconnected from the voltage supply. the plate separation distance is doubled and the dielectric is replaced by a material with another that has one quarter of the former relative permittivity. find the final charge on the capacitor's positive plate and the final voltage difference between its terminals. 2. a parallel-plate capacitor consists of two equally thick layers of dielectric sandwiched between 1 cm x 2 cm rectangular plates that are separated by 200 um. one layer of dielectric has permittivity of 5 uf/m. the other has twice that value. find the energy stored in the capacitor when its leads are connected to a 60 v supply.

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:

multiply 2kg by latent heat of vap

its a 5.5 n

glad that

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