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1. ### What is the volume Vball of the ball (radius R) with charge q?

... 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

2. ### a charged spherical shell of total charge q and radius R and two concentric Gaussian spheres, S1 and S2.?

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

3. ### Physics Homework Help?

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

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

4. ### A ball is thrown eastward into the air from the origin (in the direction of the positive x-axis). The initial velocity is 40 i + 64 k,?

...s= ut + ½at². You forgot the “½”: r(t) = <40t, 0t + ½(-8)t², 64t + ½...

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

5. ### Raindrops acquire an electric charge as they fall. Suppose a 2.0-mm-diameter drop has a charge of +12 pC.?

"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

6. ### Calculate the Magnitude and Direction of the NET Electric Field?

...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

7. ### what is cos in terms in R and z?

cosΘ = adj / hyp = z / √(z²+R²)

1 Answers · Science & Mathematics · 05/09/2019

8. ### What does the expression reduce to if we move so far away along the central axis that ?

For z >> R, E = qz / [4πε₀*(z²+R²)^(3/2)] ≈ qz / [4πε₀...

2 Answers · Science & Mathematics · 04/09/2019

9. ### A point charge q= -0.45 nC is fixed at the origin.?

... 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

10. ### Physics 1 Question?

The first step is to calculate the vertical and horizontal components of the tennis ball’s initial velocity. Vertical = 59.8 * sin 15 (15.5 m/s) Horizontal = 59.8 * cos 15 (15.8 m/s) During one half of the time, the tennis ball’s vertical velocity...

3 Answers · Science & Mathematics · 02/09/2019