Physics 140 Midterm 3
November 20, 2000
Name ___________________
Section number______________
Student ID_____________________
Form 1
Choose the best answer
Useful information:
Volume of sphere:
4/3
π
R
3
Moments of Inertia for uniform objects:
Sphere, through any diameter
2/5 MR
2
Disk, through the axis
1/2 MR
2
Cylinder, through the axis
1/2 M((R1)
2
+ (R2)
2
)
Plate, axis perpendicular to face and through center
1/12 M(a
2
+ b
2
)
Rod, axis perpendicular to length and through center
1/12 ML
2
Acceleration due to Gravity near surface of earth:
g
9.8
m/s
2
Universal Gravitational constant:
G
6.67 X 10
–11
N m
2
/kg
2

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