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1. ### Physics question p4?

... we can apply the angular equivalent  τ = Iα (T₂ - T₁)R = I(a/R) I = (T₂ - T₁)R²/a = (156.2...

3 Answers · Science & Mathematics · 11/12/2019

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. ### 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

4. ### 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

5. ### Question on angular motion ?

...of inertia of the rotating masses Jr , therefore : Ts*r = Jr*α ..(α being the angular acceleration and equal to a/r) m*g = m...

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

6. ### Physics - angular motion?

see attached figure...

1 Answers · Science & Mathematics · 24/11/2019