These applications DO NOT INVOLVE harmful ionizing energy:
- MRI
- ultrasound
- laser surgery
Your teacher is right. The moon can be seen early in the morning sometimes and late at night. Different phases are only visible on certain days as one day might be full quarter, the next full moon, the next first quarter, etc.
A transverse wave. A wave is a disturbance that transmits energy from one place to another by the particles of the medium.
Speed = Distance ÷ Time so divide .5 km by .1h. .5 km÷.1h=5 km/h, so the answer is B. 5km/h.
