Answer:
Resistors restrict current flow through a circuit.
(The electrons don't easily get from one side to the other)
High voltage is actually needed for to send power over long distances because if you use high current, a lot of the power is lost to the resistance in the wires.
Explanation:
hope it helps <3
Answer:
4.38 km
Explanation:
Volume of oil slick, V = Area of oil slick, A × thickness of 1 molecule, d'
Since the oil slick spreads out in a circular area, it has the area of a circle.
So, V = πd²/4 × d'
d² = 4V/πd'
d = 2√(V/πd') where d = diameter of oil slick.
Since V = 3000 cm³ = 3000 × 10⁻⁶ m³ = 3 × 10⁻³ m³ and d' = 2 × 10⁻¹⁰ m
So, d = 2√(3 × 10⁻³ m³/(π × 2 × 10⁻¹⁰ m))
= 2√(3 × 10⁻³ m³/(6.283 × 10⁻¹⁰ m))
= 2√(0.477 × 10⁷ m²) = 2√(4.775 × 10⁶ m²)
= 2 × 2.19 × 10³ m
= 4.38 × 10³ m
= 4.38 km
To solve this problem we must apply the concepts related to Tangential Acceleration based on angular velocity and acceleration, and therefore, we must also calculate angular velocity based on the given frequency. For all these problems we will take the Units to the International System. The maximum acceleration would then be defined as,
Here,
= Angular velocity
A = Amplitude
At the same time the angular velocity is described as,
Here f means the frequency of the wave. Substituting,
Replacing at the first equation,
Therefore the maximum particle acceleration for a point on the string is 
Nitrogen forms many chemical compounds, such as amino acids, ammonia, nitric acid and cyanide.
Answer:
A. Repeat the experiment to be sure the results are valid.
