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...)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

...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

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

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

...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

... 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

...) 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

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

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

... following is the General Relativity equation

**for**4-acceleration: aᵏ = d²xᵏ⁄dτ² = -⌈ᵏᵤᵥ(...9 Answers · Science & Mathematics · 04/11/2019

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