Hello!
We can use Ohm's Law to solve for the potential difference across a resistor given the current and resistance:
V = Potential Difference (? V)
i = Current (1.5 A)
R = Resistance (12 Ω)
Plug in the known values and solve.
A.) Metal is used for the burner below the pot to slow the transfer of thermal energy because its electrons move freely.
Answer:1725 watts
Explanation: Household devices are required to run at 110-125 volts and most are rated at 115 volts so 1725 watts for a 15 amp cord or circuit. You will have to be careful when adding outlets for a 15 amp breaker. Always be sure to consult a licensed electrician before DIY electrical work.
Answer:
The speed of sound in this gas = 416 m/s
Explanation:
The wave produced in a column open at one end, closed at the other has the relation L = λ/4 with the length of the tube.
The standing wave pattern for the tube closed at one end has a node at the closed end & an antinode at the open end.
The distance between the node and antinode = wavelength/4 = λ/4
1.3 = λ/4
λ = 5.20 m
For any wave, v = fλ
v = velocity of the wave = ?
f = frequency of the wave = 80 Hz
λ = wavelength of the wave = 5.20 m
v = 5.2 × 80 = 416 m/s