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  1. ...)² / (2 * 9.81) m = 11 m ==== b. Refer to the diagram below for parts b and c. Consider the vertical motion (uniform acceleration motion...

    1 Answers · Science & Mathematics · 31/12/2019

  2. ...10^-3*10^3*10 V = √ 21.4*16/3*10 ≅ 34 m/sec = 76 MPH the time needed for reaching that speed is nearly 3 times the time taken in vacuum , i.e. 3*34/10...

    3 Answers · Science & Mathematics · 29/11/2019

  3. f’ = observed frequency f = source frequency v = speed of sound vₛ = source’s speed= 72 km/h = 20m/s v₀ = observer’s speed = 32km...

    3 Answers · Science & Mathematics · 17/09/2019

  4. The speed is not needed for the total energy required if any gain in kinetic energy at the beginning is used in permitting the elevator to coast to a stop. E = mgh = ( 700+600)*10 * 9 = 117 kJ approximately.

    2 Answers · Science & Mathematics · 15/08/2019

  5. ...motion and we can use the standard formula: max. speed = ω * amplitude We don’t need the wave speed (14m/s) as we told frequency and ω = 2πf. Hence: max. speed = 2πf * amplitude For wave A, max. particle speed = 2π(7) * 0.50 = 22.0m/s For wave B...

    1 Answers · Science & Mathematics · 01/05/2019

  6. ... be reachable by the bullet. Let's say the bullet is in the air for time "t." If the bullet is just able to reach the car, impact...

    2 Answers · Science & Mathematics · 10/07/2019

  7. ...) is maximum (max value = ωA when x=0). ω is a constant so for half max. speed we need √(A² - x²) = A/2 A² - x² = A²/4 ...

    2 Answers · Science & Mathematics · 27/02/2019

  8. Now find the time time for first nut to fall to the ground. 12=1/2 g t^2. Time to fall...nut cover the distance. s=vo(t-t1) +1/2 g(t-t1)^2= 1/2 g t^2 Now solve for v0, the initial velocity of the second nut.

    1 Answers · Science & Mathematics · 12/09/2019

  9. 0 = 24m + (7 m/s)t - (1/2)(9.8 m/s^2)t^2 => 4.9 t^2 - 7 t - 24 = 0 => t = use quadratic formula and pick only the positive answer for t.

    3 Answers · Science & Mathematics · 14/10/2019

  10. ... following is the General Relativity equation for 4-acceleration: aᵏ = d²xᵏ⁄dτ² = -⌈ᵏᵤᵥ(...

    9 Answers · Science & Mathematics · 04/11/2019

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