Question

The heaviest invertebrate is the giant squid, which is estimated to have a weight of about 0.37 tons spread out over its length of 40 feet. What is its weight in newtons

Answer 1

The weight of the giant squid in Newtons is approximately 3292.2 N, calculated by converting its mass to kilograms and then multiplying by the acceleration due to gravity.

Step-by-step explanation:

To convert the weight of the giant squid from tons to Newtons, we need to use the conversion factor where 1 ton equals 907.185 kg. Since the giant squid weighs about 0.37 tons, this corresponds to 335.65845 kg. Next, we apply the formula for weight (W = mass × gravity), using the standard acceleration due to gravity, which is 9.81 m/s2. Therefore, the weight of the giant squid in Newtons is approximately 3292.2 N.

The giant squid, reported to weigh about 0.37 tons and measure 40 feet in length, is indeed one of the largest invertebrates known. In addition to the giant squid, other large marine creatures include the colossal squid, which can grow up to almost 50 feet long, and the ocean sunfish, the heaviest bony fish in the world, reaching up to 5,070 pounds in weight. Marine cephalopods, such as squids and cuttlefish, are known for their complex brains and large eyes that form clear images.

Answer 2

3.6 kN

Step-by-step explanation:

Given a giant squid has a mass of about 0.37 tons, you want its weight in newtons.

Weight

Weight in newtons is the force that results from the acceleration of a mass by gravity.

F = ma

F = (0.37 Mg)(9.8 m/s²) ≈ 3.6 kN

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Additional comment

We can multiply 0.37 t = 370 kg by g = 9.80655 m/s² to get 3628.4605 N. However, the mass is given to 2 significant figures, so the product cannot be more precise than 2 significant figures. That is why we rounded it to 3600 N or 3.6 kN.

1 Mg is 1000 kg, or 1 t (metric ton)