Answer:
Explanation:
You pass every base on time like in baseball
Answer:
When frequency increases more wave crests pass a fixed point each second. That means the wavelength shortens. So, as frequency increases, wavelength decreases.
Explanation:
I am not sure that Andre would need any kind of help. He could regain his voice himself. This actually depends on the accident because he could have lost his voice or hit his head and is unable to speak. If he hit his head, I would say that speech therapy is what he needs. Hope this helps. :)