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1. ### Can you solve this difficult physics question?

... gravitational force. Weight = m * g Fg = G * M * m ÷ r^2 m * g = G * M * m ÷ r^2 g = G * M ÷ r^2 G...

1 Answers · Science & Mathematics · 22/12/2018

2. ### Help me please with this physics question?

(a) intensity = power / area of sphere = P / 4πR² R = 3e8m/s * 3600s/h * 24h/day * 365day/yr * 40.3yr = 3.81e17 m P = 4.00e28 I...

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

3. ### 2 blocks (collision and separation) Simple harmonic motion?

... with the spring it goes in simple harmonic motion, derive an ex(p)ression fo(r) the spring constant,k if the spring compresses a distance l (L for clarity...

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

4. ### Physics help?!?

...why. eg When you close the switch would the current instantly become i = V/R or not. Why? You should have the answers to both A and...

1 Answers · Science & Mathematics · 21/02/2019

5. ### Physics......?

... and m₂ are the masses of the two objects in kg r is the distance in meters between their centers g...

2 Answers · Science & Mathematics · 01/11/2019

6. ### Phsics question with picture last one didnt work lol electric potential?

...from -2q to C = 3 units Potential is V = kq/r. Potentials are scalars. To get total potential we simply...

3 Answers · Science & Mathematics · 17/02/2019

...use the following equation to calculate the total current. V = I * R 12 = I * 13⅓⅓ I = 0.9 amp In a parallel circuit...

3 Answers · Science & Mathematics · 24/07/2019

8. ### How do you find the resistance of an application that draws 7A of current from 120V source?

...current flowing through a resistance with the equation V=IR, you determine R = V/I = 120V/7A = 17.1 Ohms resistance.

2 Answers · Science & Mathematics · 31/10/2019

9. ### Physics Help!!?

... energy between two charges, in Joules U = kQ₁Q₂/r    Q₁ and Q₂ are the charges in coulombs...

1 Answers · Science & Mathematics · 28/11/2019

10. ### Electricity: Electric Circuits Please show work?

... = 1 C/s 2) resistance = voltage² / power = V²/P R = (110V)² / 1500W = 8.1 Ω Hope this ...

1 Answers · Science & Mathematics · 18/03/2019