Answer:
Centre of gravity is a theoretical point in the body where the total weight of the body is thought to be concentrated. In a uniform gravitational field, the centre of gravity is identical to the centre of mass. Yet, the two points do not always coincide.
Answer:a.Dry cell
Explanation: A dry cell is a type of electric battery, commonly used for portable electrical devices like a flashlight
This is what I found online: "<span>For a person with normal hearing, when it comes to pitch the human hearing range starts low at about 20 Hz. That’s about the same as the lowest pedal on a pipe organ. On the other side of the human hearing range, the highest possible frequency heard without discomfort is 20,000Hz. While 20 to 20,000Hz forms the absolute borders of the human hearing range, </span>our hearing is most sensitive in the 2000 - 5000 Hz frequency range<span>." So i'm guessing it's 100,00 since none of those are lower than 20
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The (frequency of the wave multiplied by the number of seconds
in a given amount of time) is the measure of the number of waves that
pass a point in that amount of time.
If you had said "in one second" instead of "in a given amount of time,
then the word in the blank would simply be frequency.
Soft materials can absord the impact and in most cases prevent injury, unlike other objects that wont absorbs and itll cause damage to the body.
