Anions are formed by _____.

The force that one surface exerts on another when the two rub against each other is calledA. friction.
B. acceleration.
C. inertia.
D. gravity.

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.



ANswer both

2 PointsWhich of the following statements are not true about gravity? Check all that
apply.
A. Gravity exists only on Earth.
O
B. Gravity exists between two objects that have mass.
O
C. Gravity is a force that pulls two objects together.
D. Gravity exists in the whole universe.
E. Gravity doesn't exist between Earth and the sun.

Earthquakes are most common:O
A. where oceanic crust slides under continental crust.
O
B. in the middle of continents.
O
c. where two continental plates spread apart.
D. on the edges of the Atlantic plate,

You could use an elevator or the stairs to lift a box to tenth floor.which has greater power?

In explaining other people’s behaviors people from western cultures tend to emphasize blank factors and people from eastern cultures tend to emphasize blank factors

How can one object affect the motion of another without touching it? Give a specific example.