X=v(initial)t+.5(a)t^2. Car B's displacement can be represented by equation x=45t. Car A can be represented by the equation x=.5(5)t^2. Plug these equations into a graphing calc and find intercept, the x value is time, the y is displacement.
Answer:
c
10 A
Explanation:
Use the equation that calculates voltage: V = IR (That's capital "i")
"V" represents voltage. It's measured in the unit volts, the symbol V.
"I" represents current. It's measured in amperes, the symbol A.
"R" represents resistance. It's measured in ohms, the symbol Ω.
From the question, we know the source is 120 V and the resistance is 12Ω.
Substitute V = 120V, R = 12Ω into the equations. Isolate "I" to find the current.
V = (I)(R)
120V = (I)(12Ω)
I = 120V ÷ 12Ω
I = 10A
Therefore:
The current of a 12-ohm hair dryer that is connected to a 120-volt power source is <u>10 A (10-amps)</u>.
Answer:
(a) 9.65 mH
(b) doubled
Explanation:
A = 6 cm^2 = 6 x 10^-4 m^2, l = 20 cm = 0.2 m, i = 2.8 A, N = 1600
(a) The formula for the self inductance of a solenoid is given by
L = μ0 N^2 A / l
L = 4 x 3.14 x 10^-7 x 1600 x 1600 x 6 x 10^-4 / 0.2
L = 9.65 x 10^-3 H
L = 9.65 mH
(b) As we observe that the inductance is proportional to the area so if the area is doubled, then inductance is also doubled.
Answer:
because hydroelectricity is generate from water and it is considered as a perpetual resources and produce the large capacity of electricity which helps in the indicator of development
Dont really understand what youre asking but switches can be used to turn things on and off.