Answer:
the answer is C
Explanation:
gravity forces down not up or sideways.
They compress or expand depending on amount of pressure or depending on the temperature
Answer:
λ = hv
If frequency is doubled :
λ = h × 2v
λ = 2hv
Thus wavelength is doubled
Answer:
The answer is B
Explanation:
Because when the both sides aren't balanced one side has to cause motion. (fall down)
