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1. ### If R = 2.400 ± 0.003, what is the relative uncertainty for R−2? Plz also provide explanation/solution.?

...you could THEN turn into a fraction. ie ( 2.4 + 0.003)^(-2) < R^(-2) < (2.4 - 0.003)^(-2) 0.173178 < R ^(-2...

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

2. ### A ball of mass 300 gram is whirled on the end of a string in a horizontal circle of radius r = 0.450 m at a constant?

What is the reference frame for the angle? I'll assume that it is measured from vertical tanθ = (v²/r) / g = v² / rg v² = rgtanθ  v² = 0.450(9.81)tan25 v² = 2.0585 v = 1.43 m/s

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

3. ### A man walks 9 m to the west, and then 40 m to the north. The magnitude of the displacement of his walk is?

... R^2 = 9^2 + 40^2 = 1681 R = 41 m the angle is 12.7° W of N When you get a good response, please consider giving a best answer. This is the only reward we get.

4 Answers · Science & Mathematics · 20/06/2019

4. ### Charge/Mass Ratio of Electron and Induction?

Uhhhhhhhh Magnetic force = centripetal force? Bvq = mv^2 / r v = rBq / m r = 5.1×10^-4 m 2. If I is "the...

1 Answers · Science & Mathematics · 12/02/2019

5. ### Physics Question - Straightening the graph Electrostatic Force?

F is proportional to 1/ r^2 F2/F = r^2 / ( 2/3 r^2) =9/4

1 Answers · Science & Mathematics · 07/10/2019

6. ### Physics Question? Its super hard and I need help pls?

...’s diagonal, d = √(0.500² + 0.500²) The distance (r) from any corner-charge to the centre point is half the diagonal. We...

2 Answers · Science & Mathematics · 16/01/2019

7. ### Uniform circular motion question tension of my arm?

ac = V^2/r = 3^2/0.7 = 12.856 m/sec^2 at top F = m(ac-g) = 2(12.856-9.806) = 2*3.05 = 6.10 N down F' = m(ac+g) = 2*(12.856+9.806) = 45.3 N

4 Answers · Science & Mathematics · 11/03/2019

8. ### Which of the following statements are correct for the RC circuit shown? Select true or false for each statement?

... in the position b for a long time, the current through R becomes close to zero. TRUE, cap blocks... a long time in the position b, the current through R is E/R. TRUE initial charge on...

1 Answers · Science & Mathematics · 13/03/2019

9. ### a concave mirror has a curvature of 20 cm and a 1.5 cm object is placed 5 cm away from the mirror, where is the object ? (focal point etc)?

focal point (distance from mirror) is: f = r/2 = 10 cm given s = object distance from mirror s' = image distance from mirror...

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

10. ### Physics Help VERY URGENT!!!!!!!!!!?

...  (d) What is the current through the resistor? I = E/R = 5.8 v / 12.1 Ω = 0.479 A  What is the current through...

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