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What applies the lever principle is 1. Seesaw 2. Staircase 3. Screwdriver 4. Wrench
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RELATED INFORMATIONS
- 1. Find 10 plural words in the picture and circle them s c h o o l s b g h a m a p s o a t t b f e a y n r s g x r t s p e n c i l s u e e x n a m e s n s h i r t s r s x w a l l s
- 2. There is a great need for a review of Albert Hubbard's idea
- 3. To sum up, which words are in the same line? There are special plural changes The more, the better,
- 4. If OA vector and ob vector are not collinear, let om vector = λ OA vector + μ ob vector (λ, μ∈ R) prove: if a, B and m are collinear, then λ + μ = 1
- 5. The two numbers are composite numbers, and their greatest common factor and least common multiple are 1 and 120 respectively?
- 6. As shown in the diamond ABCD in the figure, ∠ ABC = 120 °, f is the midpoint of DC, the extension line of AF intersects the extension line of BC at e, then the degree of the acute angle between the straight line BF and the straight line De is () A. 30°B. 40°C. 50°D. 60°
- 7. 12. The greatest common factor and the least common multiple of 16 and 30 24、16、18、 14、21、42、 22、77、42、 Say pull down, use short method, step by step, how to seek
- 8. Find the slope and inclination angle of the straight line passing through points a (3.5) and B (A.2)
- 9. My favorite fruit is banana?
- 10. The symmetry axis of parabola y = x ^ 2-5 (M + 1) x + 2m is Y axis,
- 11. Why do some verbs in English have irregular past tense? Can't you use all - ed?
- 12. In the triangle ABC, C = 2. A + B = 4. (Sina + SINB) / sinc =?
- 13. If a = 11111, B = 11111, C = 111111, then the largest of a, B, C is______ The smallest is______ ．
- 14. In five continuous natural numbers, there must be a multiple of five, In 0.1.2.3.4, if 0 is a multiple of 5, the smallest multiple of a number is itself?
- 15. The sum of 5 consecutive natural numbers is 75, find this natural number!
- 16. The sum of five consecutive natural numbers is 75. The five natural numbers are ()
- 17. The sum of five continuous natural numbers is 75. What is the largest and the smallest of these five continuous natural numbers
- 18. The sum of five consecutive natural numbers is 75. What is the number in the middle
- 19. The sum of five continuous natural numbers is 55. What are the five natural numbers?
- 20. The sum of five consecutive natural numbers is 200, the largest of which is ()