# Yahoo Web Search

1. ### physics help!?

t=F* r 3Nm=5N* r r =0.6 m

1 Answers · Science & Mathematics · 17/11/2020

2. ### physics! help?

If you apply the force perpendicularly to the door, τ = 125N * 1.4m = 175 N·m If you applied at an angle, then less. For the angle measured from perpendicular, τ = F* r *cosΘ.

1 Answers · Science & Mathematics · 17/11/2020

3. ### Simple pendulum?

...9.81m/s² / cos30.0º = 10.2 N c) T = m(g + v²/ r ) = 0.900kg*(9.81 + 0.917²/0.230)m/s² T = 12.1 N...

1 Answers · Science & Mathematics · 20/11/2020

4. ### physics question?

1. This seem to be 50 mR. 200*0.5= 100*1 2.    1 mAs=4.5      50*200ms=50*200/1000=10mR      300*1.5=450 m R 800*16/1000=128/10=12.8 mR Please check these reulsts

2 Answers · Science & Mathematics · 20/11/2020

Power dissipated is P = V²/ R = 120² / 50 = 288W If you want the amount of heat energy, you also need the time. E.g. of it's on for 10s: E = Pt = 288 * 10 = 2880J

2 Answers · Science & Mathematics · 15/11/2020

6. ### Physics help please !! :(?

g = GM/R² R = √(GM/g) = √(6.674e−11N·m²/kg² * 5.98e24kg / 0.233m/...

2 Answers · Science & Mathematics · 16/11/2020

... = (45W)/(4A) = 11.25 V If resistance of bulb = R Ω, then resistance of B//C = R /2 If voltage of battery...

2 Answers · Science & Mathematics · 15/11/2020

8. ### Physics homework help needed!?

...angle θ, the vertical component of centripetal force = mrω²cosθ where r = radius of circular wire so we have mrω²cosθ = mg r = g/(ω...

1 Answers · Science & Mathematics · 13/11/2020

9. ### How to calculate horizontal displacement at point B?

... the strains are equal, you've got (40kN - R ) / (A*E)alum = R / (A*E)fe where R is...

1 Answers · Science & Mathematics · 18/11/2020

10. ### help physics question pls?

... of the force between electron and proton separated by a distance r = 975 ×10 -9 m F = k Qp Qe / r2 = 9 ×109 × ( 1.6 ×10 -19...

1 Answers · Science & Mathematics · 13/11/2020