Answer:
Add an arrow above the symbol p to show it is a vector. Sometimes it is italicized in textbooks.
Explanation:
Answer:
infrared
Explanation:
Electromagnetic spectrum w.r.t. increasing frequency is
Radio waves
Microwaves
Infra red
visible
ultra violet
x rays
gamma rays
Answer:
speed = 20 m/s
Explanation:
speed = frequency * wavelength
speed = 4 * 5
speed = 20 m/s
Answer:
Mechanical waves are waves that need a medium for propagation. Non-mechanical waves are waves that do not need a medium for propagation.
Explanation:
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