Answer:
The speed of the bus is 40 km/hr so this means the bus is travelling at a speed of 40 km per hour.
Electrons have a smaller wavelength than visible light, leading to higher resolution.
If i'm not mistaken I think the suspect is Josh. They found one piece of human hair that was not her color and 3 non-human hair on her which makes me think it was a dog cause dogs tend to shed a lot
