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related to R

1. ### Calculate the force of Earth's gravity on a spacecraft 2.00 Earth radii above the Earth's surface if its mass is 1950 kg .?

2 R above the surface is 3 R from the center. So the acceleration of gravity is 1/9 of the surface value. Then force = mass * acceleration = 1950 * (9.80665 / 9) = 2124 newtons.

1 Answers · Science & Mathematics · 29/10/2019

2. ### Physics Help?

a = ω²r 4.37 mi  = 7033 m ω = √(a/r) = √(9.8/7033) = 0.0373 rad/s ω is usually labeled "angular velocity...circle in meters    ω is angular velocity in radians/sec = v/r    a is in m/s²

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

3. ### Physics question?

...and the speed of the center of mass are related by the definition ω = v/r The kinetic energy is the sum of the translational and rotational ...

1 Answers · Science & Mathematics · 03/11/2019

4. ### I need help with circular motion?

...the car in a circle at any given speed we need a centripetal acceleration of v^2 / r  = 4^2/523 To accelerate the car along a path we require an acceleration = dv/dt...

1 Answers · Science & Mathematics · 05/11/2019

5. ### current problem?

...see http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/curloo.html#c3 with z = R. Simplifying gives: B = μ₀R²I/(2(R²...

2 Answers · Science & Mathematics · 18/10/2019

6. ### The earth's radius is 6.37×106m; it rotates once every 24 hours. ?

...the shortest distance from the axis to our point of interest is r = 6.37 x 10^6 cos45 = 4.50 x 10^6 m The angular velocity of earth is...

1 Answers · Science & Mathematics · 31/10/2019

7. ### A 250 g baseball is pitched at 26 m/s spinning at 45 rad/s . You can treat the baseball as a uniform solid sphere of radius 2.7 cm?

...moment of inertia in kg•m²I = cMR²    M is mass (kg), R is radius (meters)    c = 1 for a ring or hollow cylinder    c = 2/5...

1 Answers · Science & Mathematics · 20/10/2019