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1. ### Find the average distance between atoms in a uniform gas that has a density of N atoms per unit volume.?

...distance However, I’m guessing this is just a basic school-level question and a simple answer will do. Call the unit length L. E.g. L=1m. Imagine a cube of unit volume (L x ...

1 Answers · Science & Mathematics · 23/09/2018

...sin19.0°) ± √[(7.03 sin19.0°)² + 4(1/2)(9.81)(24/0)]} / [2(1/2)(9.81)] t = 1.99 s or t = -2.46 s (rejected) Time taken = 1.99 s (b) ...

3 Answers · Science & Mathematics · 24/09/2017

3. ### What is the acceleration at which the Earth gets pulled towards the sun?

...the sun and d is the distance between the sun and the earth. g = 6.67 * 10^-11 * 1.99 * 10^30 ÷ (3.52775 * 10^22)^2 g = 1.32733 * 10^20 ÷ (3.52775 * 10^22)^2 This...

3 Answers · Science & Mathematics · 16/03/2017

4. ### Tidal forces are gravitational forces exerted on different parts of a body by a second body. Their effects are?

... moon exerts a stronger tidal force on the earth than the sun does. ( The top one.)

1 Answers · Science & Mathematics · 16/05/2016

5. ### A grinding wheel is a uniform cylinder with a radius of 7.70 cm and a mass of 0.670 kg .?

OK You've done (A) B) First we need to find the magnitude of the net torque accelerating the wheel. Let's convert the final speed of the wheel (1750 rpm) into an angular velocity in ...

1 Answers · Science & Mathematics · 04/11/2015

6. ### Physics Question?

moment of inertia I = ½mr² = ½ * 1.99kg * (0.0698m)² = 4.85e-3 kg·m² torque τ = I*α 0.608 N·m = 4.85e-3kg·m² * α α = 125 rad/s² 1280rev/min * 2πrads/rev * 1min/60s = 134 rad/s (a) t = ω / α = 134rad/s / 125rad/s² = 1...

1 Answers · Science & Mathematics · 01/11/2015

7. ### Can you solve these questions?

.... This is not the same as "like" or "thumbs up" which are also nice and do boost points, but only after asker awards initial points with their vote.

1 Answers · Science & Mathematics · 13/07/2015

8. ### A 3.21 kg object is attached to a 1.99 m long string and swung in a vertical circle at a constant speed of 10.7 m/s.?

...mg = mv²/r => T = m(v²/r - g) = 3.21(10.7²/1.99 - 9.81) = 3.21*47.723 = 153.19 N also at loop low: T - mg = mv²...

2 Answers · Science & Mathematics · 22/05/2015

9. ### Plaskett's binary system consists of two stars that revolve in a circular orbit about a center of mass midway between them.?

... the 2 stars of mass m to have the same pull on each other as they do from M alone, M*m/R² = m²/(4R²) or 3) m = 4...

1 Answers · Science & Mathematics · 12/05/2015

10. ### PHYSICS HELP! The length of nylon rope from which a mountain climber is suspended has a force constant of 1.40×104 N/m..?

...and x = 0.569 m (c) I don't understand this part -- twice WHAT length of rope is used? Does that mean we're doubling up on the rope? Then we have two springs in parallel, and keq = k1...

1 Answers · Science & Mathematics · 09/04/2015