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1. ### Physics Homework Help?

s = ½at² so a = 2s / t² at t = 1/94 s, s = 1.2 cm, so a = 2*1.2cm / (1/94 s)² = 21 206 cm/s² = 212 m/s² at...

1 Answers · Science & Mathematics · 15/09/2019

2. ### In acetylene, C-H stretch occurs about 3300 cm-1. Estimate the position of a C-T stretch.?

...approximately. The wavenumber therefore decreases with a factor √︎3, to 1905 cm-1

1 Answers · Science & Mathematics · 13/09/2019

3. ### The next figure shows, in cross section, a plastic, spherical shell with uniform charge Q = −16e and radius R = 10 cm.?

...4πε₀ = 8.99e9 N·m²/C² For r < 10 cm, the outer shell of charge has no effect on the field. For r > 10...

1 Answers · Science & Mathematics · 12/09/2019

4. ### Physics Help needed?

water flow Q = A*V = 0.7854*0,3^2 dm^2 * (2.2*10) dm/sec = 1.555 dm^3/sec (lps) time t = V/Q = 4400 l / 1.555 lps = 2829 sec (47' 9'')

2 Answers · Science & Mathematics · 15/09/2019

5. ### Find (a) the magnitude and (b) the direction of the net electric field at the origin.?

field E = vector Σ kQ / d² where k = 8.99e9 N·m²/C² x-direction: The two charges on the x-axis have the same magnitude and same distance from the origin; therefore the field at the origin due to these two charges is 0 N/C. y-direction...

1 Answers · Science & Mathematics · 10/09/2019

6. ### Physics Question: An electron with a speed of 7.28 × 108 cm/s in the positive direction of an x axis enters an electric field?

...*4.92e-3m = 4.96e13 m²/s² and V = 7.05e6 m/s = 7.05e8 cm/s Actually, we don't need the velocity V. We need the...

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

7. ### A rectangular metal plate has dimensions of 10.0 cm by 6.00 cm by 4.00 mm. Find the plate’s volume in m3. (Enter the unit m3 as m^3)?

V = 1*0.6*0.04*10^-3 = 2.4*10^-5 m^3

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

8. ### Electric field Question:"An electron with a speed of 7.28 × 108 cm/s in the positive direction of an x axis?

"is there a formula for Velocity and Electric field E?" Not directly, but there is a formula for Force and electric field: F = q*E where q is the charge and so the acceleration a = q*E/m where m is the mass and so the change in...

1 Answers · Science & Mathematics · 06/09/2019

9. ### a nonconducting rod of length L = 8.15 cm has charge -q = -4.33 fC uniformly distributed along its length.?

(a) (-4.55 x 10^(-15) C)/(8.15 x 10^(-2) m) = -5.583 x 10^(-14) C/m (c) 180 degrees. (b) E = integral of k lambda dx/(a + x)^2 from x = 0 to 0.15 m. magnitude of E = (9.0 x 10^9 N/C * (5.583 x 10^(-14)) times [1/0.153 - 1/0.2345] = 1.14 x 10^(-3) N/C. (d) (9.0 x 10^9...

1 Answers · Science & Mathematics · 06/09/2019

10. ### Two identical conducting spheres, fixed in place, attract each other with an electrostatic force of 0.119 N...?

electrostatic force F = kQq / d² where k = 8.99e9 N·m²/C² first condition: -0.119 N = 8.99e9N·m²/C² * Q * q / (0.719m)² Q*q = -6.84e-12 C² second condition: 0.0325 N = 8.99e9N·m²...

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