How many days, minutes and seconds is eight months?

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• 1. It is known that P (x1, Y1) is any point on the curve y = x ^ 3 + 3x ^ 2 + 4x-10, and the inclination angle of the tangent line at point P is a, so the value range of a is obtained
• 2. The inclination angle of the tangent of the curve y = (1 / 5) x ^ 5 + 3x ^ 2 + 4x at x = 1 is
• 3. It is known that the solution of the equation 3xx − 2 = 1 − M2 − x is a positive number, and the range of M is obtained
• 4. It is known that the equation x / x-3 = 2-m / 3-x about X has an integer solution to find the value range of M Don't just browse
• 5. If the solution of the equation X-1 / M-1 = 2 about X is positive, then the value range of M is?
• 6. To move the positive charge of - 8 power Coulomb with charge quantity of 1 * 10 from infinite distance to point a in the electric field, we need to overcome the electric field force to do work w = 1.2 * 10-4 power Joule,
• 7. The particle with a charge of 3 × 10 to the power of - 6 C passes through two points of electric field a and B successively, and overcomes the electric field force to do work of - 4J of 6 × 10. It is known that the potential of point B is 50V 1 change of electric potential energy 2 change of electric potential energy at point a 3 change of electric potential energy at point a
• 8. If point a of charge moves to point B and the work done by the electric field force is zero, then the charge must move along the equipotential surface Is that right?
• 9. When a point charge with q = - 2 × 10-6c is removed from a point in the electric field and moves from point a to point B, the electrostatic force is overcome and the work is done by 6 × 10-6c When a point charge with q = - 2 × 10-6c is removed, when it moves from point a to point B in the electric field, it overcomes the electrostatic force to do 6 × 10-4 J, and when it moves from point B to point C, it does 9 × 10-4 J (1) With B as the zero potential energy point, what is the electric potential energy EPA of the charge at point a? (2) With C as the zero potential energy point, what is the electric potential energy EPA of charge at point a?
• 10. The charged particle m only moves from point P to point Q under the action of electric field force. In this process, 2.6 × 10-6j work is done to overcome the electric field force A. The electric potential energy of m at P must be less than that at Q. B. the electric field strength at P must be less than that at Q. C. the electric potential at P may be higher than that at Q. D. the kinetic energy of m at P must be greater than that at Q
• 11. What is 2.5.9.15.24.37.55!
• 12. How many 450 grams is 3 kg? Good math. Help me to calculate
• 13. Solve the equation 51% x-47% x = 6.44 70-15% = 55 1 / 4 x-12.5% x = 12
• 14. 1 / 5 x + (250-x) * 1 / 4 = 55 solution
• 15. 19 and 2 / 1 x plus 3 and 2 / 1 times 2 equals 7. How to calculate?
• 16. To solve the equation: 1. X + 9 / 2 equals 12 2.0.45x equals 8.13 4 / 4 equals 3 / 8
• 17. From 10 (1 / 5 X-2) = 25 (8 / 5 x + 3 / 25) - 2, we get
• 18. I can't remember this type of question. 2 / 3-8x = 1 / 3-2x?
• 19. [(x △ 80) - (x △ 80)] * What does 80 = 1 x equal What is x equal to?
• 20. When x equals 7, 6x + 2x = (), 6x-2x = ()