In the water the whale’s weight is balanced by the upthrust of the water and the force is evenly distributed over the underside of its body. The whale’s body is not rigid enough to withstand this concentration of force, so it distorts, crushing internal organs and the rib cage, making breathing difficult.

Observing an object placed in water helps illustrate now an object’s density influences its buoyancy. All objects, even those that float, displace some water. Specifically, when placed in water, an object sinks into the water until it displaces an amount of water equal to its own mass.

An object floats when the weight force on the object is balanced by the upward push of the water on the object. The upwards push of the water increases with the volume of the object that is under water; it is not affected by the depth of the water or the amount of water.

The boat floats because it displaces water. The coin is more dense than water so it sinks. In commercial ships they paint a Plimsoll line , along the side of the ship where the water line is and for heavier and heavier loads as the ship sinks into the water.

Shipping/cargo containers are much stronger than traditional wood light frame construction, this is simply because shipping containers are made from steel, which is much stronger than wood. The steel used to build modern shipping/cargo container is a corrosive resistant high-strength low-alloy steel.

Pier Foundation Pier foundations

The average cost of shipping a container is about $3,000 per move. However, because prices vary widely by home size, move distance, and container company, your move could cost more or less than the average.

The cheapest moving container companies

• U-Pack ReloCube—Best overall prices.
• U-Box—Best prices for long-distance moves.
• PODS—Best prices for short-distance moves.
• 1-800-PACK-RAT—Best value for midsize homes.