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stira [4]
2 years ago
15

Under which of the following conditions is Lactic acid fermentation most likely occur?

Physics
1 answer:
adell [148]2 years ago
5 0
Lactic acid is caused by using atp without oxygen being avaliable
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A relatively small impact crater 20 kilometers in diameter could be made by a comet 2 kilometers in diameter traveling at 25 km/
nadya68 [22]

Answer:

KE=1.3\times 10^{21}\ J

KE=3.1\times 10^{5}\ E

Explanation:

(a)

Given:

  • mass of comet, m=4.2\times 10^{12}\ kg
  • velocity of the comet, v=2.5\times 10^4\ m.s^{-1}

<u>Now, the kinetic energy of the comet can be given by:</u>

KE=\frac{1}{2} m.v^2

KE=0.5\times 4.2\times 10^{12}\times (2.5\times 10^4)^2

KE=1.3\times 10^{21}\ J

(b)

Given:

  • energy released by 1 megaton of TNT, E=4.2\times 10^{15}\ J

<u>Now the kinetic energy of the comet in terms of energy of 1 megaton TNT:</u>

KE=\frac{1.3\times 10^{21}}{4.2\times 10^{15}} E

i.e.

KE=3.1\times 10^{5}\ E

4 0
2 years ago
Help pls ... will give brainlist
Ghella [55]
I, i’m pretty sure sorry if it’s wrong
6 0
2 years ago
A 285-mL flask contains pure helium at a pressure of 750 torr . A second flask with a volume of 455 mL contains pure argon at a
zaharov [31]

Answer:

P_{He}^|=288.85torr

Explanation:

Given data

P_{He}=750 torr\\V_{He}=285mL\\P_{Ar}=732 torr\\V_{Ar}=455 mL

Required

Partial pressure of helium

Solution

First calculate the total volume of gas mixture once the stopcock is opened

So

V_{total}=V_{He}+V_{Ar}\\V_{total}=285mL+455mL\\V_{total}=740mL

As temperature remains constant,by Boyle's Law we calculate the partial pressure of the helium gas

So

P_{He}V_{He}=P_{He}^|V_{total}\\P_{He}^|=\frac{P_{He}V_{He}}{V_{total}}\\P_{He}^|=\frac{750torr*285mL}{740mL}\\  P_{He}^|=288.85torr

5 0
3 years ago
Read 2 more answers
A compressed spring does not have elastic potential energy.
Alexus [3.1K]

Answer:

False

Explanation:

The second you let go its gonna release kinetic energy that's why it's potential

6 0
2 years ago
Which statement describes the reason for the change in the velocity of waves as temperature decreases?
DIA [1.3K]

Answer:

O The particles of the medium move more slowly and there are fewer chances to transfer energy.

Explanation:

Various media are made up of particles. These particles are in constant motion according to the kinetic theory of matter. Recall that temperature has been defined as the average kinetic energy of the particles in a medium. Hence, for any given medium, the velocity of particle motion increases or decreases linearly with temperature.

The speed of particles in any medium increases or decreases as the temperature of the medium increases or decreases as emphasised above. Hence, at low temperature, the velocity of waves set up by the motion of particles in a medium decreases and transfer the wave energy to neighbouring particles occurs more slowly than at high temperatures.

7 0
3 years ago
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