China Naming Network - Eight-character fortune telling - Leverage question in junior high school physics
Leverage question in junior high school physics
The multiple of the length of the long arm and the length of the short arm is the gravity of the earth/force exerted = 6*10^24kg*10N/kg=6*10^25N/600N=10^23 times
The second question is done using similar triangles, which is also 10^23 times 1cm.
That is 10^23cm=10^18km
10^18km/3*10^5km/s=3.33*10^12s=105699 years