Sort by

- Relevance
- |Time

r = 9.5*3.6*10^19 = 3.42*10^20 m ω = 1.1*10^-15 rad/sec tangential speed Vt = ω*r = 3.42*1.1*10^5 = 3.76*10^5 m/sec = 376 km/sec g = Vt^2/r = 3.76^2*10^10/(3.42*10^20) = 4.13*10^-10 m/sec^2 F = g*Ms = 4.13*1.06*10^(30-10) = 4.38*10^20 N

2 Answers · Science & Mathematics · 28/04/2019

Solved here: http://www.phys.lsu.edu/~jzhang/Lecture28_2101.pdf page 8 upshot: ω = √(3k / m) and since period T = 2π/ω, T = 2π*√(m / 3k) and so here T = 2π * (0.720kg / 3*1450kg/s²) = 0.0808 s or 80.8 ms If you find this helpful, please award Best...

1 Answers · Science & Mathematics · 04/03/2020

Angular velocity is ω = (v/r) sin θ, in radians per (whatever time unit v is measured in); where θ is the angle between the velocity and the radius vector. At the minimum distance, θ is a right angle and sin θ = 1, so: ω = (10 m/s)/(2 m) * 1 = 5 radians/s

1 Answers · Science & Mathematics · 05/08/2019

Weight changes by an amount equal to the centripetal force, F: F=mv²/r = mω²r. ω = 2π/T.where T = period = 24h = 24*60*60s = 86400s F = mω²r = 60 * (2π/86400)² * 6.4*10^6 = .2.0N This is...

3 Answers · Science & Mathematics · 10/05/2019

Welcome to Yahoo!Answers. I would try equating the initial GPE to the final KE: mgℓ/2 = ½mv² + ½Iω² where v is the velocity of the center of mass For a rod rotating about...

2 Answers · Science & Mathematics · 01/04/2020

... sense. Using a string to whirl a ball in a circle, the centre of

**rotation**is *not fixed* when the speed changes. If you imagine...5 Answers · Science & Mathematics · 06/05/2019

... a regulator the volts are proportional to the square of the

**rotational**rate. This is because the increasing rate of**rotation**puts...3 Answers · Science & Mathematics · 08/05/2019

... of thousands of years, the Earth's

**rotation**slows down by 1 second every 40,000 years, due to tidal friction...9 Answers · Science & Mathematics · 29/07/2019

... from rest, what is the time it took for the first

**rotation**of the disk? t = time = to be determined ω = ω0 + αt (ω - ω0...3 Answers · Science & Mathematics · 16/12/2019

...the center of the length of the rod lands and stays on the center of

**rotation**of the disk. L = ΣIω L = (½mR²...1 Answers · Science & Mathematics · 07/08/2019