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Given F= (at^2) i + (B + yt)

**j**As ∆v/∆t =**a**= F/m =>dv/dt = 1/2 x {(at^2) i + (B + yt)**j**} =>dv = 1/2 x {ai...2 Answers · Science & Mathematics · 18/04/2020

...;

**a**> and <b> are non-parallel, then**j**<**a**> + k<b> = 0, if**j**= k = 0 If**j**= (m+**n**+1) and k = -(3n+2), then m+**n**+1 = 0 3n + 2 = 0 →**n**= -2/3 m - 2/3 + 1 = 0 m...2 Answers · Science & Mathematics · 06/09/2019

Fd is work done (undone). (549)(3.2).= 1756.8

**J**It's**a**negative because potential is lost, so, -1756.8**J**. They probably want...3 Answers · Science & Mathematics · 13/12/2019

...½ * 1100N/m * (0.020m)² = 0.22

**J**At lesser compression, that initial energy has...*1100*0.0040² - 4.2*(0.020 - 0.0040) = 0.144**J**and so it seems to me that we have in fact...1 Answers · Science & Mathematics · 18/10/2019

change in energy = R(1/3² - 1/5²) = 1.55e-19

**J**and change in energy = hv / λ so λ = hv / change in energy = 6.626e−34J·s * 2.998e8m/s / 1.55e-19J λ = 1.282e-6 m = 1.282 µm = 1282 nm2 Answers · Science & Mathematics · 14/06/2019

1) E = 1/2 k

**A**^2 E = 0.5 * 275 * 0.058^2 = 0.46**J**2) v = w**A**= sqrt(k/m)**A**v = sqrt(275/0.582) * 0.058 = 1.26 m/s 3)**a**= w^2**A**= (k/m)**A****a**= (275/0.582) * 0.058 = 27.41 m/s^22 Answers · Science & Mathematics · 08/08/2019

...13.6eV * 1.6e-19J/eV = 2.176e-18

**J**so 9.17063e-20**J**= 2.176e-18J * (1/n² - 1/7²) means that 1/n² = 0.0626 1/**n**= 0.25**n**= 4 Hope this helps!1 Answers · Science & Mathematics · 27/04/2020

...t)| / |v(t)| where x represents the cross product and we already know |v(t)|

**a**_**n**= |(2t i^ + 3t²**j**^) x (2 i^ + 6t**j**^)| / √[t²(4 + 9t²)]**a**_**n**= |(2t*6t - 3t²*2...3 Answers · Science & Mathematics · 11/11/2019

...-19J/eV * (1/n² - 1/7²) 2.13426E-18

**J**= 2.176E-18J * (1/n² - 1/7²) 0.981 = 1/n² - 1/49 1/n² = 0.981 + 1/49 = 1.00**n**= 1 first level1 Answers · Science & Mathematics · 10/04/2020

... 2 and/or 5 as factors, then it will create

**a**terminating decimal. That's because 2...0.1 1/16 = 0.0625 1/20 = 0.05 etc. Answer:**n**= 2^i 5^**j**where i and**j**are non-negative integers...2 Answers · Science & Mathematics · 21/03/2020