Why don't stars fall from the sky?

This is because gravity has reached a state of balance between the rest days
Don't think the stars are small. The actual size of the stars is much larger than that of the earth

RELATED INFORMATIONS

1. On the 1:30000 scale map, it is measured that a highway is 5 cm long, and it takes 6 days to complete the joint construction by team a and team B. the work efficiency ratio of team a and team B is 2:3. How many meters does team a repair every day?
2. What figure does axisymmetric figure refer to? What two parts of figure does axisymmetric figure refer to
3. The parameter equation is x = cost, y = Sint, 0 ″ t ″ 2pi x=cost,y=sint,0《t《2pi The book says it's a circle, but I think it's a circle Why does t have to move on a circle if t is a straight line?
4. Who is going to talk about the definition, properties and formulas of the inner center, outer center, center of gravity and perpendicularity of a triangle? be deeply grateful Come on
5. |What is the relationship between the scalar product | of vector a and vector B and | a | B | Why?
6. How to deduce LNA equal to B times of E from B power of a?
7. Let a = {x | X & # 178; + (M + 2x) + 1 = 0, X ∈ r}, B = {x | x ＞ 0}, if a ∩ B = & # 8709;. Find the value range of real number M Let a = {x | X & # 178; + (M + 2) x + 1 = 0, X ∈ r}, B = {x | x ＞ 0}, if a ∩ B = & # 8709;. Finding the value range of real number m
8. Space is very difficult, but some people say that the space vector method can solve all geometric problems, so ask the space vector method to prove that a straight line is parallel to a plane? Yes, please say. Attach a topic, please use the space vector method to prove Q: as shown in the figure, in the cube abcd-a1b1c1d1, E is the midpoint of dd1, verification: BD1 / / plane AEC
9. If vector a and B satisfy | vector a | = | vector B | = 1, and vector A &; vector B + vector B &; vector b = 3 / 2, Then the angle between vector a and vector B is ()
10. It is known that the image of quadratic function y = x2 + BX + C passes through two points a (0,1), B (2, - 1). (1) find the value of B and C; (2) try to judge whether the point P (- 1,2) is on the parabola
11. As shown in the figure, it is known that ∠ AOB = 90 °, EOF = 60 °, OE bisects ∠ AOB, of bisects ∠ BOC, and the degrees of ∠ AOC and ∠ cob are calculated
12. As shown in figure (1), stack the right angle vertex C of two right angle trigonometric rulers together, (1) If ∠ DCE = 35 °, ACB=______ If ∠ ACB = 140 °, then ∠ DCE=______ (2) guess the special relationship between ∠ ACB and ∠ DCE, and explain the reason; (3) as shown in figure (2), if the apex a of 60 ° acute angle of two same right angle trigonometric ruler coincides, then what is the relationship between ∠ DAB and ∠ CAE, please explain the reason
13. Xiao Hong uses 64 go pieces to form a regular hexagon on the go board. The number of pieces on each side is equal, and there are pieces at four vertices. How many pieces are placed on each side? Sorry, I made a mistake. It's a square Write the formula according to the standard of grade 4
14. Divide a parallelogram into two trapezoids, in which () is always equal A. Area B. top and bottom and C. perimeter D. height
15. Given that 30's x square = 2010 and 67's y square = 2010, then 2 / x + 2 / y =?
16. What do you mean by the computer in the math problem
17. Mathematical problems of electronic flea At a certain point K0 on the number axis, the electronic flea picks one unit to K1 to the left, jumps 3 units to K2 from K1 to the right in the second part, jumps 5 units to K3 from K2 to the right in the third part, jumps 7 units to K4 from K3 in the fourth step... Jumps 100 steps according to the above rule, the number shown is 2009 (k100), what is the number shown in the initial position K0 of the electronic flea
18. A mathematical problem is calculated by computer If the number key 5 of your calculator is broken, please find a way to use other number keys to calculate the following questions （1） 4560/60 （2）18*57 （3）1242/54
19. Math problems with calculator What is the cube root of 527? What is the cube root of 0.3612? What is the cube root of three fourths?
20. Math problem: press the calculator for me 260 + 50 * radical 5 =? 60 * the product of radical 2 divided by the sum of 2 and radical 2 Three eighths times the product of the root 41 plus nine sixteenth times the root 89 2 decimal places The first answer is the best