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scoray [572]
3 years ago
7

Một vật dao động điều hòa với phương trình x= 4cos(6πt) cm. Kể từ khi vật bắt đầu dao động, thời điểm vật qua a) vị trí cân bằng

lần thứ 1 là? b) vị trí biên x=4 lần thứ 2 là? c) vị trí x= -2 lần thứ 9 là ? d) vị trí x=2 lần thứ 2020 là?
Physics
1 answer:
dezoksy [38]3 years ago
7 0

Answer:

what are you saying.........

......

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A shoe and a shirt are released from the same height. They take different amounts of time to fall to the ground. How can this be
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The best explanation for the difference in time is: A. The difference in weight doesn't affect the time, but they are affected differently by air resistance.

<h3>What is weight?</h3>

Weight can be defined as the force acting on an object or a physical body due to the effect of gravity. Also, the weight of an object (body) is typically measured in Newton.

<h3>The factors that affect weight.</h3>

Some of the factors that affect the weight that is possessed by an object or a physical body include the following:

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In conclusion, the weight possessed by the shoe and shirt has no effect on time but would be affected differently by air resistance.

Read more on weight here: brainly.com/question/13833323

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