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... is the volume VG of the Gaussian sphere (radius

**R**) … “ should be: “What is the volume VG of the Gaussian...2 Answers · Science & Mathematics · 10/09/2019

QUESTION1: How much charge is enclosed by Gaussian sphere S2? No, you don't need a formula. You're told that the "total charge [is] q", so I'd say qenc = q QUESTION 2: so how much charge is...

1 Answers · Science & Mathematics · 11/09/2019

Vor+ar*t = Vog-ag*t Vog-Vor = t(ar+ag) t = (Vog-Vor) / (ar+ag)

1 Answers · Science & Mathematics · 08/09/2019

...s= ut + ½at². You forgot the “½”:

**r**(t) = <40t, 0t + ½(-8)t², 64t + ½...1 Answers · Science & Mathematics · 07/09/2019

"15000 N/C = Fe/(12*10^-9)" Oops -- pC is picocoulomb, so you should have "12*10^-12" here. Oh, but wait -- it looks like you used "12*10^-12" in your calculation; your answer for Fe looks good. "...

1 Answers · Science & Mathematics · 07/09/2019

...due to a point charge (Q) at a point at a distance (

**r**) is given by: E = kQ / r²... {purple}. magnitude from Pythagoras**R**= 5.03 ×10^5 V/m direction = arctan (2.25/4.5) = 26...1 Answers · Science & Mathematics · 05/09/2019

cosΘ = adj / hyp = z / √(z²+

**R**²)1 Answers · Science & Mathematics · 05/09/2019

For z >>

**R**, E = qz / [4πε₀*(z²+R²)^(3/2)] ≈ qz / [4πε₀...2 Answers · Science & Mathematics · 04/09/2019

... below the q. Right! • F=m*g • [K|q1||q2|]/

**r**^2=m*g Yep. I'd write it as weight = electrostatic force m*g = ...1 Answers · Science & Mathematics · 03/09/2019

The fi

**r**st step is to calculate the ve**r**tical and ho**r**izontal components of the tennis ball’s initial velocity. Ve**r**tical = 59.8 * sin 15 (15.5 m/s) Ho**r**izontal = 59.8 * cos 15 (15.8 m/s) Du**r**ing one half of the time, the tennis ball’s ve**r**tical velocity...3 Answers · Science & Mathematics · 02/09/2019