The distance is 30 km and the displacement is 22.4 km North East
The photoelectric emission is possible if the wavelength of the incident light is less than that of yellow light
Answer:
boron
aluminum
gallium
indium
thallium
Explanation:
Any of these could work. Nitrogen has 5 valence electrons so you just needed to pick an element that has 3 valence electrons that nitrogen could borrow. This periodic table shows valence electron counts:
The most common liquid on planet earth is water
Answer:Constructive interference results in a wave with a greater amplitude than any of the component waves.
Explanation: