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1. ### Two long, straight wires are parallel and are separated by a distance of d = 0.250 m.?

r = d/2 Btop = μo i1 / (2 π r) Bbot = μo i2 / (2 π r) B = Bto - Bbot B...

1 Answers · Science & Mathematics · 18/07/2019

2. ### Question about relative linear speed?

...the second part. Each point on the edge of the wheel has speed rω measured from the center of rotation (the axle of the wheel) Because...

1 Answers · Science & Mathematics · 26/11/2019

r = mv/qB => The component of v perpendicular to the magnetic field is...

1 Answers · Science & Mathematics · 04/04/2019

a) The force on q1 due to q3 (r=10cm = 0.1m) is: F13 = k.q1.q3/r² = 9*10^9 * (-3*10^-6) * (3... = 0.1² + 0.1² = 0.02 The force on q1 due to q2 (with r=d so r² = d² = 0.02) is: F12 = k.q1.q1/r²...

1 Answers · Science & Mathematics · 22/06/2019

5. ### Physics equation manipulation question!?

Fg / r = GMm/r^3 Which is not particularly useful if you ask me, are you sure that's what you mean?

3 Answers · Science & Mathematics · 11/07/2019

6. ### 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

7. ### Can someone solve this physics question?

R = 37.2^2/9.80*sin 28.2 = 141.2*0.4726 = 66.73 m

2 Answers · Science & Mathematics · 12/08/2019

8. ### What must be the resistance of the element?

P = V I = V^2 / R 3.4E3 = 240^2 / R R = 17 ohm to two sig figs When you get a good response, please consider giving a best answer. This is the only reward we get.

2 Answers · Science & Mathematics · 24/04/2019

9. ### Need help with physics problem?

... what you are to solve for is V of the battery and R of the battery. When the resistors are in parallel the effective...

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

10. ### What is the wavelength of a photon that will excite an electron from n=3 to n=5 in a hydrogen atom?

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 nm

2 Answers · Science & Mathematics · 14/06/2019