How do its eight arms help an octopus obtain food

Answers

Answer 1

Answer: The more arms it has the less of a chance the prey has to swim away.

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What energy transfer happens when you cook a sausage on a camp fire thats burning wood

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Heat energy (and light energy if they ask for two answers)

Oxidation in a sentence

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The displacement vector from your house to the library is 520 m long, pointing 40 ∘ north of east.What are the x-component (x-axis is directed from west to east) of this displacement vector?What are the y-component (y-axis is directed from south to north) of this displacement vector?

Answers

Answer:

398.3 m, 334.2 m

Explanation:

The magnitude of the displacement vector is

v = 520 m

And its direction is

$\theta=40^(\circ)$

measured as north of east.

The x-component of this vector is given by:

$v_x = v_0 cos \theta = (520)cos 40^(\circ)=398.3 m$

While the y-component is given by

$v_y = v_0 sin \theta =(520)sin 40^(\circ)=334.2 m$

Final answer:

The x-component of the displacement vector (east-west direction) is approximately 398 m and the y-component (north-south direction) is approximately 334 m.

Explanation:

Displacement vectors contain both magnitude and direction information. In the case of a displacement vector 520 m long, pointing 40 degrees North of East, we can break it down into x and y components using trigonometric functions, specifically cosine and sine.

For the x-component (east-west direction), we can use the cosine function because it gives us the adjacent side in a right triangle, which is the east-west direction in our case. Therefore, the x-component will be:
520 m * cos(40) = 398m (rounded to nearest unit).

For the y-component (north-south direction), we can use the sine function because it gives us the opposite side in a right triangle, which is the north-south direction in our case. Hence the y-component will be:
520 m * sin(40) = 334 m (rounded to nearest unit).

Learn more about Displacement Vector Components here:

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Watching television, with theremote control in your hand, which of the following exerts the greatest gravitational force on you? A) The couch you are sitting on

B) The TV actors tne room

C) The moon

D) The remote control in your hand

Answers

A. The couch you are sitting on

Final answer:

The gravitational force an object exerts is influenced by its mass and distance. From the options, the moon exerts the most gravitational force because of its significant mass, despite being far away.

Explanation:

The factor that determines the gravitational force exerted by an object is both its mass and the distance from it. The equation for gravitational force is F = G * (m1 * m2) / r^2, where 'G' is the gravitational constant, 'm1' and 'm2' are the masses of the two objects, and 'r' is the distance between their centers.

In the options given: the remote control, the couch, TV actors, and the moon, despite the latter being far off, still, the moon exerts the strongest gravitational force on you. The magnitude of gravitational force exerted by the moon is larger due to its massive size compared to the rest, even though it's far away. The effect is noticeable in the ebb and flow of ocean tides caused by the moon's gravity.