I know one is transformed, not sure about another
We know, Frequency = speed / wavelength
f = 341 / 0.8
f = 426.25 Hz
In short, Your Answer would be 426.25 Hz
Hope this helps!
Answer:
Heat is transfered via solid material (conduction), liquids and gases (convection), and electromagnetical waves (radiation).
Explanation:
Answer:
i dont really understand but when you accelerate you move faster. So i guess the skateboarder is moving fast forward
The relationship between the resistance R of a wire and its resistivity

is given by

where L is the length of the wire and A is its cross sectional area.
In the problem, we have

,

and

. So we can solve the find the area A:

For a cylindrical wire, the cross sectional area is given by

where r is the radius. We know the value of the area A, so now we can find the radius of the wire: