![subject](/tpl/images/cats/fizika.png)
Physics, 17.09.2021 09:20 leannaadrian
Bài 4: Một vật dao động điều hòa với phương trình x = 4cos(4πt - π/3) cm.
a)Viết phương trình vận tốc của vật.
b) Xác định vận tốc của vật ở các thời điểm t = 0,5 (s)
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 19:30
Two thin 80.0- cm rods are oriented at right angles to each other. each rod has one end at the origin of the coordinates, and one of them extends along the x- axis while the other extends along the yaxis. the rod along the x- axis carries a charge of - 15.0 μ c distributed uniformly along its length, and the other rod carries 15.0 μ c uniformly over its length. find the magnitude and direction of the net electrical force that these two rods exert on an electron located at the point (40.0 cm, 40.0 cm). (e
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 11:50
The mass of the sun is 1.99×1030kg and its distance to the earth is 1.50×1011m. what is the gravitational force of the sun on the earth?
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 23.06.2019 01:30
The process of a material going through a change of state from a gas to a liquid
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 23.06.2019 02:20
What are known as the properties of substances that describe a substance et does not change that substances?
Answers: 1
You know the right answer?
Bài 4: Một vật dao động điều hòa với phương trình x = 4cos(4πt - π/3) cm.
a)Viết phương trình vận...
Questions
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 10.01.2020 06:31
![question](/tpl/images/cats/en.png)
English, 10.01.2020 06:31
![question](/tpl/images/cats/istoriya.png)
History, 10.01.2020 06:31
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 10.01.2020 06:31
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 10.01.2020 06:31
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 10.01.2020 06:31
![question](/tpl/images/cats/mat.png)
Mathematics, 10.01.2020 06:31
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 10.01.2020 06:31
![question](/tpl/images/cats/en.png)