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2 years ago

Which activity would help maintain homeostasis during exercise?

Physics

2 answers:

mezya [45]2 years ago

6 0

Answer:

Speeding up the rate if breathing

Explanation:

The more and quicker you breathe, the more oxygen your cells get

Mademuasel [1]2 years ago

5 0

Decreasing heart rate

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Which of the following correctly identifies the relationship between the immune system and the integumentary system (skin, hair,

grigory [225]

Answer:

F - The skin is the body's first physical barrier, hairs in the nose filter air as it enters the body, pores in the skin release toxins and pathogens

3 0

2 years ago

An electron is released from rest at a distance of 0.470 m from a large insulating sheet of charge that has uniform surface char

ArbitrLikvidat [17]

Answer:

Part a)

$W = 1.58 \times 10^{-20} J$

Part b)

$v = 1.86 \times 10^5 m/s$

Explanation:

Part a)

Electric field due to large sheet is given as

$E = \frac{\sigma}{2\epsilon_0}$

$\sigma = 4.00 \times 10^{-12} C/m^2$

now the electric field is given as

$E = \frac{4.00 \times 10^{-12}}{2(8.85 \times 10^{-12})}$

$E = 0.225 N/C$

Now acceleration of an electron due to this electric field is given as

$a = \frac{eE}{m}$

$a = \frac{(1.6 \times 10^{-19})(0.225)}{9.1 \times 10^{-31}}$

$a = 3.97 \times 10^{10}$

Now work done on the electron due to this electric field

$W = F.d$

$d = 0.470 - 0.03$

$d = 0.44 m$

So work done is given as

$W = (ma)(0.44)$

$W = (9.11 \times 10^{-31})(3.97 \times 10^{10})(0.44)$

$W = 1.58 \times 10^{-20} J$

Part b)

Now we know that work done by all forces = change in kinetic energy of the electron

so we will have

$W = \frac{1}{2}mv^2 - 0$

$1.58 \times 10^{-20} = \frac{1}{2}(9.1\times 10^{-31})v^2$

$v = 1.86 \times 10^5 m/s$

7 0

3 years ago

An insulated rigid tank contains 4 kg of argon gas at 450 kPa and 30°C. A valve is now opened, and argon is allowed to escape un

zheka24 [161]

Answer: The final mass of the tank is 2.46kg

Explanation: All shown in the attachment.

Assumptions:

i. Argon is treated as an ideal gas at the specified conditions.

ii. Isentropic relation of ideal gas applies at the given conditions.

4 0

2 years ago

The word atom comes from a Greek word that means “able to duplicate”.

Gnoma [55]

<span>The statement, The word atom comes from a Greek word that means “able to duplicate”, is false. The greek word for atom is atomos. The a- in atom means “not” and –tom means “cut”. So it is not ot cut or it cannot be cut. It is common definition is indivisibility. This definition is defined by the philosopher Democritus. He observed that as he cut the sugar cube into smaller fraction, it reduces to nothing that cannot be seen in the eye. And so he proposed that definition.</span>

3 0

3 years ago

A rope of negligible mass supports a block that weighs 30.0 N. as shown below. The maximum tension the rope can support without

Mars2501 [29]

Answer:

a = 6.7 m/s²

Explanation:

The formula to apply here is :

Mass * acceleration = Tension -weight

m*a = Ft -mg -----where m is mass of block, a is acceleration , Ft is force due to tension.

Given in the question that ;

Mass of block = 3 kg

Ft = 50 N

g= 10

m*a = Ft -mg

3*a = 50-30

3a= 20

a= 20/3

a= 6.7 m/s²

8 0

3 years ago