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3 years ago

Which group of animals would be served best by the following adaptations?

2 answers:

5 0

The answer to this question would be: A) animals that live in deserts

Desert temperature is high, especially in the day, An animal that lives in the desert needs to adapt to the high temperature either by reducing the heat or by increasing heat loss. By becoming nocturnal, the animal also able to evade the sunlight so it was less exposed to the heat.
Unlike other option, the desert is lacking water. Desert is mostly dry and water would be a resource that hard to find. In this case, kidneys adapted to check water loss would be a great help

Paul [167]3 years ago

3 0

The answer is A..........:3

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A wire with a length of 150 m and a radius of 0.15 mm carries a current with a uniform current density of 2.8 x 10^7A/m^2. The c

Mrac [35]

Answer:

The current is 2.0 A.

(A) is correct option.

Explanation:

Given that,

Length = 150 m

Radius = 0.15 mm

Current density $J=2.8\times10^{7}\ A/m^2$

We need to calculate the current

Using formula of current density

$J = \dfrac{I}{A}$

$I=J\timesA$

Where, J = current density

A = area

I = current

Put the value into the formula

$I=2.8\times10^{7}\times\pi\times(0.15\times10^{-3})^2$

$I=1.97=2.0\ A$

Hence, The current is 2.0 A.

7 0

3 years ago

Who Designed the one-piece wrought iron plow.

marissa [1.9K]

Answer:

Jethro Wood is the one who designed the one-piece wrought iron plow.

8 0

3 years ago

Help please! based on the following table, which object has the lowest density? A. object A B. object B C. object C D. object D

seraphim [82]

The answer to this question lies in the definition of density. One material will just float over another if its density is smaller. If one material is denser than the other, it will sink. Density can be defined as the mass per unit volume of a substance at a given pressure and temperature. Thus, for a material to float in water, it does not depend on the weight, or rather on the mass, but on the distribution of the mass by the volume occupied, that is, of the density. The more distributed the mass, that is, the larger its volume, the less dense the object and it will float.

Object C has the lowest density
65 N or 6.5 Kg ------------ 6 N or 6 Kg

This effective mass under water will be its actual mass minus the mass of the fluid displaced.

The buoyant force on a submerged object is equal to the weight of the fluid displaced.
Weight of object - buoyant force on object (the mass of the fluid displaced)

6Kg - 6.5Kg= - 0.5Kg

Answer: C. object C

6 0

2 years ago

Read 2 more answers

Which of the following is a good example of a physical change?

den301095 [7]

Candle burning because it’s going from a solid to a liquid

Plz give me a good mark

5 0

3 years ago

What is the minimum coefficient of friction needed for a frightened driver to take the same curve at 20.0 km/h?

Tanya [424]

Answer:

The minimum coefficient of friction is 0.22