A scientist obtains images of a particular star, which appears as four separate stars. Which phenomenon causes the star to appear this way?

O redshift
O gravitational lensing
O principle of equivalence
O gravitational time dilation ​

if the forces acting on an object are unbalanced, the object will accelerate in the direction of the net force on the object.

explanation:

this is best explained by having an understanding of newton's second law, which states that f=ma. you see, when the forces are unbalanced, net force (sum of all forces) is not zero. therefore making it necessary for the object to have an acceleration in the direction of the net force.

lexy is right because she has the labeled s

c because the action was the roller coaster reaches bottom of hill (action) reaction would be blood tends to drain away from head

hope this !