The center-of-mass of a solid, uniform ball is at________.A system consists of a

Question

The center-of-mass of a solid, uniform ball is at________.A system consists of a 3 kg particle (left) and a 1 kg particle (right) separately by 1 m, its center-of-mass position is located at

_________The position of the center-of-mass of the Sun (left) and the Earth (right) system is at approximately

_________The hydrogen atom, consisting of a proton (left) and an electron (right), has a center-of-mass position at approximately

_________A solid, uniform disc has a center-of-mass at________

Choices:

(A) Center of the object

(B) zero of the length from the left

(C) zero of the length from the right

(D) 1/4 of the length from the left

(E) 3/4 of the length from the left

(F) cannot be determined

(G) none of these.

Explanation / Answer

first blank - A

second blank - D

third blank - B

fourth blank - B

fifth blank - A

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