Ametal stand specifies a maximum load of 450 lb. will it support an aquarium that weighs 59.5 lb and is filled with 37.9 l of seawater (d = 1.03 g/ml)?

First solve the mass of 37.9 L seawater

M = 37.9 L ( 1000 ml / 1L ) ( 1.03 g / ml)

M = 39037 g

Then convert it to lb

M = 39037 g ( 1 lb / 453.592 g)

M = 86.06 lb

Total weight = 86.06 lb + 59.5 lb = 145.56 lb so it can support the aquarium

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.

gas

explanation:

smoke is the matter of a gas