The law of universal gravitation states that any two objects in the universe that have mass. without exception,
a. attract each other
b. repel each other
c. combine to provide a balanced force
d. create friction

20 in the formula no3, what does the subscript 3 mean?

If a robot fixed another robot is it a engineer or doctor?

Use the phylogenetic tree to the right to determine which statement below is true. organisms a and f are not related. organism e is more closely related to organism b than organism f. organisms c and d are more closely related than organisms a and b. phylogenetic trees