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3 years ago

Where do cells get the chemicals needed to synthesize other molecules?

Physics

2 answers:

Maslowich3 years ago

6 0

Answer: from the food they take in

The chemicals needed to produce molecules comes from the food which an organism eat. A food is a rich source of fats, oils, proteins, carbohydrates and vitamins which are required by the cells to produce functional molecules necessary for building the body and maintaining it's proper functioning.

jek_recluse [69]3 years ago

4 0

From the food they take in

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A 75-g bullet is fired from a rifle having a barrel 0.540 m long. choose the origin to be at the location where the bullet begin

lyudmila [28]

Part a) The work done by the gas on the bullet is the integral of the force in dx, where x is the distance covered by the bullet inside the barrel with respect to the origin:
$W= \int\limits^{0.540m}_{0} {F} \, dx = \int\limits^{0.540m}_{0} {(16000+10000x-26000x^2)} \, dx =$
$=16000x+10000 \frac{x^2}{2} - 26000 \frac{x^3}{3}$
By substituting the length of the barrel, L=0.540 m, we find the total work done by the gas on the bullet:
$W=16000(0.540m)+10000 \frac{(0.540m)^2}{2} - 26000 \frac{(0.540m)^3}{3} =$
$=8733 J=8.73 kJ$

part b) The resolution of the problem is the same, we just have to use the new length of the barrel (L=0.95 m) inside the final formula, and we find the new value of the work:
$W=16000(0.95m)+10000 \frac{(0.95m)^2}{2} - 26000 \frac{(0.95m)^3}{3} =$
$=12280 J=12.28 kJ$

5 0

3 years ago

If the rate $56 per 7 hours is reduced to a unit rate, the result is dollars per hour.

34kurt

The answer is 8 because multiplying 7 and 8 is 56

4 0

3 years ago

Read 2 more answers

At 15°C air is transmitted <br>at 340 m/s. Express this speed<br>in Kilometers per hour.

EleoNora [17]

Answer:

1224km/hr

Explanation:

To convert from m/s to km/hr

1000m = 1km

Divide both sides by 1000

1m = 1/1000 km................. (1)

60×60 seconds = 1 hr

3600s = 1hr

Divide both sides by 3600

1s = 1/3600 .............(2)

Divide (2) by (1)

1m/s = 1/1000 ÷ 1/3600 km/hr

1m/s = 1/1000 × 3600/1 km/hr

1m/s = 3600/1000 km/hr

1m/s = 3.6 km/hr .............(3)

To convert 340m/s to km/hr

Multiply (3) by 340

1× 340m/s = 3.6 × 340 km/hr

340m/s = 1224km/hr

I hope this was helpful, please mark as brainliest

7 0

3 years ago

Read 2 more answers

Convert 30.0 degrees Celsius into Kelvin

frutty [35]

Answer:

303.15K

Explanation:

the formula for converting celsius into kelvin is adding 273.15 to the number

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2 years ago

Anyone who answers this correctly, i will mark as brainiest.

nekit [7.7K]

Answer:Constructive interference results in a wave with a greater amplitude than any of the component waves.

Explanation:

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3 years ago