The answer is B, constant speed sideways, acceleration downwards.
Answer:

Explanation:
By using relation,
Speed of light = frequency × wavelength (in m)
Answer:
2: 20HZ 3:audiable
Explanation:
i guessed and it told me i was right
Ordinary cells can convert chemical energy to electrical energy only, but rechargeable cells can also store electrical energy into chemical energy and vice versa. You will study more about it in your higher classes. secondary cells can be recharged and used again but dry cells cannot be recharged.