Answer:
I don't exactly understand this but the child should hear a beep lower than 500 hz when he/she moves the car further away. If you don't find my answer appealing sorry but I don't do physics.
Explanation:
Explanation:
the object should be placed at 2F
<span>pseudoscience includes beliefs theories, or practices that have been or are considered scientific, but have no basis in scientific fact.
This could mean the were disproved scientifically, can't be tested or lack evidence to support them.
Examples:Channeling- involves communicating with a spirit through a person
Astrology- beliefs that humans are affected by the position of celestial bodies
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17.6 cm cubed all you have to do is dimensional analysis and multiply .88/1 by x/20
The bulb might blow out due to too much electricity. it can only take s much you know.