In one of the startling coincidences sprinkled throughout
every field of math and science, the moment of maximum
height is popularly referred to as the "high" tide.
Answer:
The 3rd graph
Explanation:
A free body diagram is a diagram which shows all the forces acting on an object.
The problem asks us to find the free body diagram of block A, so we must find all the forces acting on block A.
We have 3 forces acting on block A in total:
- The force of gravity (its weight), which pushes the block downward (in the diagram, it is the force represented with 
- The tension in the rope 1, which pulls block A upwards: this force is represented with 
- The tension in the rope 2, due to the weight of block 2, which pulls block A downwards: this force is represented with 
Based on the direction of these 3 forces, the correct diagram is the 3rd one.
The energy transferred by a sound wave is independent of its speed. However, the type of medium affects this due to the differences in the distances between particles in different media, i.e. sound travels faster through solids than gases as the solid particles are much closer together, so they collide more frequently allowing the sound to travel faster. Additionally, temperature affects the distances between particles in a medium, increasing them with increasing heat, causing slower sound travel. Therefore the answer is the third option.
Hope this helps!
The 2 sides of magnet are called the north and south pole