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1. ### Physics Gravitation Help?

For a particle, angular momentum = m*v*r which is conserved since no external torques are ...

1 Answers · Science & Mathematics · 29/02/2020

2. ### I would really really really appreciate any help!! You don't need to show all the work, an equation can even help!!?

Ipeak = Vr/R = 60/300 = 0,20 A Vℓ = X*I = ω*L*I = 200...

2 Answers · Science & Mathematics · 06/08/2019

3. ### What is the final level that the electron jumps to?

E = R * (1/n² - 1/7²) where R is the Rydberg constant...

1 Answers · Science & Mathematics · 27/04/2020

4. ### Physics Question?

The required centripetal force is F = mv^2 / r And it acts towards the centre of the circle NOT along...

2 Answers · Science & Mathematics · 01/07/2019

5. ### Physics Help Plx (plz provide answer and not formula) THX!!!!?

we must use r^2 v= constant. r is the radius and v is the velocity. first condition...4*4=1. This remains a constant. In the second segment r=1. velocity =1 m/s. In the third segment (1/4)^2 v=1. v=16 m/s...

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

6. ### At what distance from a 1.00*10^-5 C charge will the electric potential be 10000 V?

V = kq/r so r = kq/V = 8.98755179e9 * 1e-5/1e4 = 8.98755179e9 * 1e-5/1e4 = = 8.98755179e9...

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

7. ### what is the potential on this surface? ?

potential = kQ / r where k = 1/4πε₀ = 8.99e9N·m²/C² so potential = 8.... ◄ then 11.7 V = 8.99e9N·m²/C² * 57.7e-12C / r solves to r = 0.0443 m = 44.3 mm ◄ If you find this helpful, please...

1 Answers · Science & Mathematics · 03/02/2020

8. ### An airplane is flying in a horizontal circle at a speed of 103 m/s.?

(B) mv^2/r = m*6.45*g = (73.0 kg)(9.81 m/s^2)(6.45) = Around 4500 N but use a calculator. (A) v^2/r <= 6.45*g => r >= v^2/(6.45*g) = (103 m/s)^2/(6.45*9.81 m/s^2) = around 15m but use a calculator.

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

9. ### Physics help?

...39;s call it α. Then the linear acceleration of the mass is a = α*r = α * 0.119m and the distance the mass travels between the two times...

3 Answers · Science & Mathematics · 08/07/2019

10. ### Calculate the force of Earth's gravity on a spacecraft 2.00 Earth radii above the Earth's surface if its mass is 1950 kg .?

2 R above the surface is 3 R from the center. So the acceleration of gravity is 1/9 of the surface value. Then force = mass * acceleration = 1950 * (9.80665 / 9) = 2124 newtons.

1 Answers · Science & Mathematics · 29/10/2019