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Physics
An inductor has a reactance of 20 Ω and resistance of 25 Ω at a frequency of 60 Hz. What is the inductance of this coil?
Physics
The current through a circuit is given by i = 56.4 sin (754t)
A, where t is in seconds. What is the rms current, and what
is the frequency of the ac source?
A, where t is in seconds. What is the rms current, and what
is the frequency of the ac source?
Physics
A 0.20-,uF capacitor is connected across the terminals of a variable-frequency oscillator. At what frequency is its reactance 84 Ω? What will the reactance be if the frequency is then tripled?
Physics
A spot car skids off of a wet mountain at 48.5 m/s and lands in the river, 110 m below the road. How long will it take for the sports car to land in the water
What is resistance
What is temperature
What is newton third law.
What is surface tension dimension.
Suppose the x − y plane is electrically charged with a constant charge density σ.
Find the electric field at a hight h from the x − y plane. Using gauss’s law.
Find the electric field at a hight h from the x − y plane. Using gauss’s law.
Suppose the x − y plane is electrically charged with a constant charge density σ.
Find the electric field at a hight h from the x − y plane. Use Coulomb’s law.
Find the electric field at a hight h from the x − y plane. Use Coulomb’s law.
