What do F, s, P represent when calculating pressure in physics

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• 1. When is p = f * V and w / T or f * s / t used to calculate power? When is p = f * V and w / T or f * s / t used to calculate power?
• 2. In the calculation of scientific physics, what does f stand for? What about F and P
• 3. The calculation of pressure formula in Physics
• 4. The formula from top to bottom in the second day of physics, such as: pressure formula P = f △ s (P is pressure) (F is pressure) (s is force) The top-down formula of the second day of physics, such as: pressure formula P = f △ s (P is pressure) (F is pressure) (s is the contact area of the stressed object)
• 5. Summary of pressure formula in junior high school physics Try to be as complete and simple as possible
• 6. Objects in_____ The pressure on the surface is called pressure, and the formula for calculating the pressure is_____
• 7. ① If n satisfies the square of (n-2007) + the square of (2008-n) = 5, find the value of (2008-n) * (n-2007) ② Given m = 2008 * 2009-1, n = the square of 2008 - 2008 * 2009 + 2009, find the size of M and n ③ Given the square of x = x + 1, find the size of the fifth power of X + 4 ④ Given a + 1 / a = 10, find the square of [A-1 / a] and the square of a + 1 / A + 1 / A ⑤ It is known that a, B and y satisfy the following conditions: the square of a + the square of B + the square of R - br-ra-ab = 0
• 8. Given the square of (n-2008) + the square of (2007-n) = 2, find the value of (2007-n) (n-2008)
• 9. 2008 / 2007 numerator minus a number, denominator plus this number, the score is 2 / 3, what is the number
• 10. At 1, 2, 3 , 200620072008, add "+" or "-" arbitrarily before, and calculate in order. Can the sum of these numbers be equal to 2008?
• 11. P = w / T = FS / T = FV, f = P / V, what are the units of P and V? Is it true that if W and M / s are replaced by kW and km / h, the result seems to be different. How to find a physics expert~
• 12. What does the physical formula s = VT mean Please explain what s, V and t stand for
• 13. What does the formula F = PS = ρ GHS mean? I'm confused about physics
• 14. What is the formula s = J 2 π f? What is its physical meaning?
• 15. For the physical meaning of the formula ρ = MV, the correct one in the following description is () A. The density of a substance is directly proportional to its mass. The greater the mass is, the greater the density is. B. the density of a substance is inversely proportional to its volume. The smaller the volume is, the smaller the density is. C. the density of an object composed of the same substance is determined, and has nothing to do with its mass or volume. D. none of the above statements is true
• 16. What does the formula P = ρ GH mean? emergency
• 17. P = m / V what other similar formulas (Physics) The formula P = m / V is defined by the ratio of m to v. there are similar formulas——————
• 18. Explanation of physical P = FV When p is constant, f increases and V decreases. But when f = ma, f increases, a increases and V increases
• 19. Junior high school physics formula: what does P = FV mean?
• 20. What is the unit of the physical formula P = FV