A guitar string transmits waves at 509 m/s. To create a 491 Hz note, to what length should the guitar player shorten the string? (Unit = m)​

Infrared radiation has wavelengths that are shorter than visible light is part of the visible light spectrum has wavelengths that are longer than visible light has the same wavelengths as ultraviolet radiation

Abatter hits a 0.140-kg baseball that was approaching him at 30 m/s and, as a result, the ball leaves the bat at 40 m/s in the reverse of its original direction. the ball remains in contact with the bat for 2.0 ms. what is the magnitude of the average force exerted by the bat on the ball?

What will happen in a hybrid vehicle if current flow becomes too high due to a short?