Two bowling balls (m1 = 8kg and m2 = 6kg) are separated by 0.5 meters, what is t

Question

Two bowling balls (m1 = 8kg and m2 = 6kg) are separated by 0.5 meters, what is the gravitational force that bowling ball # 1 exerts on bowling ball #2? The planet Vulcan has a moon (m = 2 X 10^20 kg) that is orbiting Vulcan at a velocity of 14,000 m/s at a distance of 7 X 10^8 m measured from center of the Vulcan to the center of the moon. What is the mass of the planet Vulcan? 9) If a wheel has a constant angular velocity of 12 rad/s, goes through an angular displacement o 94.25 radians A) how long does it take the wheel to go through the 94.25 radians? B) how many complete rotations did the wheel make going through this displacement?

Explanation / Answer

#8 :

use the formula from Orbital Velocity as Vo^2 = GM/R

whereM is mass of Vulcan

G is universal Grav constant

R is distance

so

Mass M = Vo^2 R/G

M = 14000*14000* 7 e8 /(6.67 e -11)

M = 2.05 *10^27 Kgs

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