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Gekata [30.6K]
4 years ago
7

In this relationship, the barnacles derive benefit. There is not benefit or harm to the whale. This relationship is an example o

f
Physics
2 answers:
raketka [301]4 years ago
7 0

Answer:

Commensalism

Explanation:

In nature, there are many kinds of relationships that are formed between animals and plants. These relationships are given certain names, depending on if both species benefit, or one benefits and the other suffers, or if they both are unaffected, one example of a relationship found in nature is called commensalism.

Commensalism is a kind of relationship that is seen between whales and the barnacles that are attached to them. In this relationship, the barnacles benefit greatly because, as the whale swims through the ocean, the barnacle constantly is exposed to a fresh source of nutrition. The whale however, is unaffected by having the barnacle attached to it.

klio [65]4 years ago
4 0
Commensalism: only one species benefits while the other is neither helped nor
harmed
so the relationship is Commensalism
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A woman does 236 J of work
Ratling [72]

Answer:

The woman's force was directed 59.22⁰ to the horizontal.

Explanation:

Given;

work done by the woman, W = 236 J

distance through the load was moved, d = 24.4 m

applied force, F = 18.9 N

inclination of the force, = θ

The work done by the woman is calculated as;

W = Fdcosθ

cos \ \theta = \frac{W}{Fd} \\\\cos \ \theta = \frac{236 }{18.9 \times 24.4} \\\\cos \ \theta =  0.5118\\\\\theta = cos^{-1} ( 0.5118)\\\\\theta =59.22^0

Therefore, the woman's force was directed 59.22⁰ to the horizontal.

8 0
3 years ago
What are the density, specific gravity and mass of the air in a room whose dimensions are 4 m * 6 m * 8 m at 100 kPa and 25 C.
Volgvan

Answer:

Density = 1.1839 kg/m³

Mass = 227.3088 kg

Specific Gravity = 0.00118746 kg/m³

Explanation:

Room dimensions are 4 m, 6 m & 8 m. Thus, volume = 4 × 6 × 8 = 192 m³

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Now formula for density is;

ρ = mass(m)/volume(v)

Plugging in the relevant values to give;

1.1839 = m/192

m = 227.3088 kg

Formula for specific gravity of air is;

S.G_air = density of air/density of water

From tables, density of water at 25°C is 997 kg/m³

S.G_air = 1.1839/997 = 0.00118746 kg/m³

4 0
3 years ago
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Answer:

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On the other hand, the tire begins to deform due to lack of air which increases the area of ​​contact with the floor.

As the weight of the car remains constant and the air has a negligible mass the force towards the road will be the same

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Explanation:

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