Physics, 16.06.2021 16:40 jhashknkughb6759
Ví dụ 4: Một con lắc lò xo có k = 16(N / m) treo thẳng đứng, đầu dưới treo vật có khối lượng 100 g. Vật đang ở vị trí cân bằng dùng lực F để kéo vật theo phương thẳng đứng rồi buông nhẹ thì nó dao động điều hoà với biên độ 5 cm, lấy g=10(m/s^ 2 ) . Tính F. A. 1,8N. B. 6,4N. C. 0,8N. 100 D. 3,2N 10 Milers
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Physics, 22.06.2019 09:00
This is really important 1.which of the following prefixes represents the largest value? (2 points)gigahectorkilomilli2.which of the following types of graphs is best for plotting the mean, median, and mode of data? (2 points)bar graphbox-and-whiskercircle graphstem-and-leaf
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Physics, 22.06.2019 10:00
Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?
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Physics, 22.06.2019 16:00
What is friction? how does it affect the motion of an object?
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Physics, 22.06.2019 20:00
Awave has a wavelength of 7 mm and a frequency of 19 hertz. what is its speed?
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Ví dụ 4: Một con lắc lò xo có k = 16(N / m) treo thẳng đứng, đầu dưới treo vật có khối lượng 100 g....
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