Answer:
B. Arc blast
Explanation:
Arc blast are as a result of rapid injection of electrical energy into an arc. These shock waves and arc blast pressure wave at low level can lead to damage of eardrums at lower levels and cardiac arrest at high levels.
Strong magnetic fields created by high currents (> 100 kA) can result to equipment destruction. These arc blast hazards are mostly found in high-energy power circuits and large capacitor banks.
Answer:
Explanation:
a) capacitive reactance Xc = 1/2πfC
f is the frequency of the AC source
C is the capacitance of thw capacitor
Given f = 60.0Hz
C = 12.2-µF
C = 12.2 × 10^-6Farads
Xc = 1/2π×60×12.2×10^-6
Xc = 1/0.004599
Xc = 217.44ohms
b) Using the formula Vrms = IrmsXc Vrms
Irms = Vrms/Xc
Irms = 27.0/217.44
Irms = 0.124Amperes
c) Since Irms = Im/√2
Where Im is the maximum current
Im = Irms×√2
Im = 0.124× √2
Im = 0.088A
d) No, the capacitor has no charge when the current is at maximum.
I don’t know why I’m here
1. Current means flow of electrons and electrons are negative charged and so are attracted to the positive end of the battery and repelled by the negative end.
2. When battery is connected in a circuit that lets the electron flow through it, they flow from negative to positive.
3. When negative terminal of cell is connected to other negative terminal of the cell in a particular circuit then, current will not flow in circuit as electrons cannot flow from negative to negative terminal.
When the player slides into the base, all its kinetic energy converts into thermal energy in the legs and the ground.
The thermal energy generated is 940 J, so the initial kinetic energy of the player must be 940 J as well:
where m=55 kg is the mass of the player and v is his speed. Re-arranging the fomula, we can find the value of his speed, v: