4)Both B and D.This happens becaus3 at the ceryain time, A experiences a flood tide causing the waters to come near it.And since B and D are the closest coastlines they are affected the most.
Gravitational pulls an object closer together
Answer:

Explanation:
The kinetic energy of an object is
, where
is the mass of the object and
is the velocity of the object.
The toy car's initial kinetic energy is
.
After the child applies a 5N force on it in the same direction, its velocity will increase but its mass will stay the same.
To find the final velocity of the toy car, we can use kinematic equation 
We are given
and
.
To find acceleration:
.
Now substitute
into
to get
.
Using this, we can find the final kinetic energy of the toy car is
.
Thus, the change in kinetic energy is
(one significant figure).
The reaction of him pushing off a floating object pushes it away causing him to lose power and balance