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2 years ago

What is the one change that golden expects to see in public transportation?

Engineering

1 answer:

Evgesh-ka [11]2 years ago

4 0

Answer:

cleanliness

Explanation:

Because its public trasportation, an about thousands of people use it, daily so you dont know what bacteria, or germs, are on the seat's, and handal's of the public transportation.

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Explain why many sustainable fishing and forestry practice depend on the actions of consumers like you.

ehidna [41]

Answer:

The reason why many sustainable fishing and forestry practice depend on the actions of consumers like me is:

The offer is aimed at satisfying the demand for these products.

Explanation:

Sustainable fishing and forestry are based on allowing future generations to access the same products that we currently have, for this reason, a sustainable fishing practice can be waiting for fish to reproduce, in order to not to overexploit them and thus to extinguish them, however, as mentioned in the answer, the offer is aimed at satisfying the demand, therefore, if consumers like me demand sea products even though they are not in the breeding season or without providing the time for the ecosystem to recover the extracted products, the supply will be forced to supply the demand despite the extinction of a species; The same applies to sustainable forestry, if they carry out reforestation work on wood products in proportions 10-1 (10 plants planted for each tree cut) or higher, but the consumer does not provide the prudent time to obtain wood products again, the indiscriminate felling in order to supply the product required by the consumer.

6 0

3 years ago

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What amount of force is being exerted in the horizontal direction?

ZanzabumX [31]

Explanation:

Use trigonometry. The horizontal force is:

Fₓ = F cos θ

Fₓ = 20 N cos 60°

Fₓ = 10 N

7 0

3 years ago

Consider a power plant with a heat rate of 10,800 kJ/kWh burning bituminous coal with 75 percent carbon and a heating value (ene

grandymaker [24]

Answer:

1. $\eta_{p} = 33.34%$

2. $m_{coal} = 0.396 kg/kWh$

3. carbon emission = 0.297 kg/kWh[/tex]

4. carbon-dioxide emission = 1.089 kg/kWh

5. Min flow of cooling water = = 1457.14 kg/kWh

Given:

Heat Rate = 10,800 kJ/kWh

Heating value = 27,300 kJ/kg

Solution:

In order to calculate the plant efficiency, [rex]\eta_{p}[/tex]

Heat rate in coal fired steam power plant = $\frac{3600}{\eta_{p}}$

Therefore,

$\eta_{p} = \frac{3600}{Heat rate}$

$\eta_{p} = \frac{3600}{10800}\times 100 = 33.34%$

Now,

To calculate mass of coal per kWh, $m_{coal}$ :

$m_{coal} = \frac{Required heat rate}{heating value per kg}$

$m_{coal} = \frac{10800}{27300} = 0.396 kg/kWh$

Now,

Rate of emission carbon and carbon-dioxide from the plant:

In accordance to the question, 75% of the bituminous coal being burned is carbon, thus carbon emission is given by:

carbon emission = $0.75\times m_{coal}$

carbon emission = $0.75\times 0.396 = 0.297 kg/kWh = 29.7%$

Now, for carbon-dioxide emission:

Since, molecular weight of carbon-dioxide = 44 kg

Thus carbon-dioxide emission:

$0.297\times \frac{44}{12} = 1.089 kg/kWh$

The minimum flow of cooling water per kWh if the allowance in temperature is $10^{\circ}$ :

$\frac{0.85\times \frac{2}{3}\times 10800}{4.2} = 1457.14 kg/kWh$

8 0

2 years ago

At what distance should the warning triangle be placed if a vehicle breaks down on the autobahn?

igor_vitrenko [27]

Answer:

The answer is 200 Meters

Explanation:

At what distance should the warning triangle be placed if a vehicle breaks down on the autobahn?

200 Meters

The Autobahn is the federal controlled-access highway system in Germany. The official German term is Bundesautobahn, which translates as "federal motorway". The literal meaning of the word Bundesautobahn is "Federal Auto Track".

4 0

3 years ago

Mention steps that followed when writing molecular formula.

Verizon [17]

Answer:

atimes heighgt

Explanation:

4 0

2 years ago

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