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1. ### I NEED PHYSICS HELP!?

... car's acceleration is toward the center of the track. a = v² / r where v is the velocity (given) and r is the radius. (c) ...

1 Answers · Science & Mathematics · 27/10/2020

2. ### Physics help?

ω = 85rev/min * 2π rads/rev * 1min/60s = 8.9 rad/s (a) speed v = ω r = 8.9rad/s * 0.5m = 4.45 m/s centripetal a = ω²r = (8.9rad/s)² * 0...

1 Answers · Science & Mathematics · 27/10/2020

3. ### Three different capacitors are connected in parallel to each other as well as to a potential source (battery). Which statement is true?

B                            parallel connections means the voltage is the same on each, irregardless of component type, C, L, R .

2 Answers · Science & Mathematics · 26/10/2020

1. A sphere with all mass distributed evenly over a thin shell at r = R . 2. the moment arm of F increases. If you find this helpful, please select Favorite Answer!

1 Answers · Science & Mathematics · 27/10/2020

5. ### A long jumper leaves the ground at an angle of 16.4 degrees to the horizontal and at a speed of 11.1 m/s.-?

Voy = Vo*sin 16.4 = 11.1*0.282 = 3.1 m/sec  Vox = Vo*cos 16.4 = 11.1*0.959 = 10.6 m/sec  range R = Vo^2/g*sin (16.4*2) = 123/9.806*0.542 = 6.80 m (angle is too small)

2 Answers · Science & Mathematics · 27/10/2020

6. ### Help with Question #7?

v = √(G*M-sun* r ⁻⁰˙⁸) v = √[(6.67 × 10⁻¹¹)*(2 x 10³⁰)*(1.5 x 10¹¹)⁻⁰˙⁸] v = 390,968 m/s

1 Answers · Science & Mathematics · 25/10/2020

7. ### I need help with 2 questions?

...12π–8π) / 0.8π = 5 s Centripetal acceleration is ω²r r = 0.5 m a₀ = (8π)²(0.5) a₁ = (12π)²(0.5) tangental...

1 Answers · Science & Mathematics · 26/10/2020

8. ### Find: the value of the resistor R and the power supplied by the 120V source?

Hope you can read that R = 0.556 ohms Power = 1980 watts

1 Answers · Science & Mathematics · 25/10/2020

9. ### A thin, hollow sphere of radius r = 0.540 m and mass m = 13.5 kg turns counterclockwise about a vertical axis through its center.?

...inertia in kg•m² I = cMR²     M is mass (kg), R is radius (meters)     c = 1 for a ring or hollow cylinder     c = 2/5...

1 Answers · Science & Mathematics · 23/10/2020

10. ### The Moon has a mass of 7.35x10^22 and the mass of the earth is 5.97x10^24. The moons mean orbit distance (center to center) is around the ?

... / m = 1.99e20N / 7.35e22kg = 2.70e-3 m/s² (d) a = v²/ r → v = √(a* r ) v = √(2.70e-3m/s * 3.84e8m) = 1020 m/s Hope this helps...

1 Answers · Science & Mathematics · 22/10/2020

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