The relationship between physical linear velocity and angular velocity

Linear velocity = angular velocity * radius

RELATED INFORMATIONS

1. Find the value range of the letter X in the algebraic formula [√ (x + 3) + √ (2-x)] / [(x-1) (x + 4)]
2. The value range of the letter in the algebraic formula y = x + 1 / 3-2x is____ Square of (- 2 radical 3)=
3. What are the value ranges of X in the algebraic formula √ x + 1 / X and √ x + 1 / x
4. The meaning of algebraic expression According to your life experience, please correct the algebraic formula X / 2 + 3Y
5. It is known that the image of quadratic function y = x2 + BX + C passes through two points a (n, - 2), B (1, m) on the line y = x-4. (1) find the value of B, C, m, N; (2) find the value of B, C, m, N; (3) find the value of B, C, m, N; (4) find the value of B, C, m, m, N; (4) find the value It is known that the image of quadratic function y = x2 + BX + C passes through two points a (n, - 2), B (1, m) on the line y = x-4 (1) Find the value of B, C, m, n; (2) Judge whether the point C (m, n) is on the image of the quadratic function and explain the reason
6. Given the quadratic function y = (x-m) 2 - (x-m), if the vertex coordinates of the quadratic function image is (5 / 2, n), find the value of M, n
7. No matter what the value of M is, the image of quadratic function y = x ^ 2 - (2-m) x + m always passes through the point? Why (1 + x) M = Y-X ^ 2 + 2x find out this step and then how to do it?
8. Given the points a (- 1, m), B (- 2, n) on the image of quadratic function y = -- X ^, compare the size of M and n
9. Given the points a (- 1, m), B (- 2, n) on the image of quadratic function y = - x?, the size of M and N are compared
10. Given that point a (- A & # 178; - 1, m) and point B (- 1, n) are on the image of quadratic function y = x & # 178;, then the size relation of M and N is___ .
11. Use 24 small squares with the side length of 1cm to form a rectangle. How many centimeters is the circumference of the rectangle
12. A simple harmonic motion of an object with a period of 4S and an amplitude of 2cm, from t / 8 to t, the distance of the particle motion is 7cm
13. The radius of a sector is twice that of a circle, and the sector area is equal to the circle area
14. How to add and subtract fractions
15. A circle passes through the center of a (- 2,1) B (5,0) on the straight line x-3y-10 = 0. The equation for finding a circle is expressed by the slope A circle passes through the center of a (- 2,1) B (5,0) and is on the straight line x-3y-10 = 0. The equation of circle is solved by the method of slope
16. She has a math test paper and a calculation problem. There are addition, subtraction, multiplication, division and parentheses in it. I asked her what is disjunctive calculation. She said that the above-mentioned thing is disjunctive calculation, but I don't think it's appropriate. I can't give any reason. I can't find it in her math textbook. Excuse me, what is disjunctive calculation in primary school math?
17. Point P is the point on the ellipse x square / 25 + y square / 9 = 1, F 1 and F 2 are the focal points, and ∠ f 1pf 2 = 60 degrees. (1) find the area of triangle f 1pf 2. (2) find the coordinates of point P
18. Xiao Ming's father is 27 years older than Xiao Ming. Four years later, his father's age is four times that of Xiao Ming. What's his father's age now?
19. There are solutions to the quadratic equation 3x + y = 10. Write out a positive integer solution
20. The positive integer solution of bivariate linear equation 3x + y = 9 is______ ．