1. Bacteria are also very important to some industries such as the production of cheese, yogurt, buttermilk, vinegar, and sauerkraut.
2. They are used in the preparation of antibiotics such as Streptomycin.
3. They are used in the tanning of leather and hides
4. They are used in the curing of tobacco (not a good thing, but notable at least�)
<span>5. Methane-producing bacteria are used in sewage treatment plants to convert the sludge into methane gas.</span>
The speed of light in that medium is .
<u>Explanation:</u>
It is known that the light's speed is constant when it travels in vacuum and the value is . When the light enters another medium other than vacuum, its speed get decreased as the light gets refracted by an angle.
The amount of refraction can be determined by the index of refraction or refractive index of the medium. The refraction index is measured as the ratios of speed of light in vacuum to that in the medium. It is represented as η =
So, here η is the index of refraction of a medium which is given as 1.4, c is the light's speed in vacuum () and v is the light's speed in that medium which we need to find.
Thus the speed of light in that medium is
Answer:
The gravitational force is 3.509*10^17 times larger than the electrostatic force.
Explanation:
The Newton's law of universal gravitation and Coulombs law are:
Where:
G= 6.674×10^−11 N · (m/kg)2
k = 8.987×10^9 N·m2/C2
We can obtain the ratio of these forces dividing them:
--- (1)
The mass of the moon is 7.347 × 10^22 kilograms
The mass of the earth is 5.972 × 10^24 kg
And q1=q2=Na*e=(6.022*10^23)*(1.6*10^-19)C=9.635*10^4 C
Replacing these values in eq1:
Therefore
This means that the gravitational force is 3.509*10^17 times larger than the electrostatic force, when comparing the earth-moon gravitational field vs 1mol electrons - 1mol protons electrostatic field
Answer:
The answer is the first option, vacuole.
Explanation:
The name vacuole has its origins in the Latin word vacuus meaning 'empty' and this unfortunately is how vacuoles appear in many slide preparations and photographs. The fact that vacuoles are fluid filled and that different vacuoles within the same cell can contain different chemicals is not normally visible.
Answer:
Explanation:
What happens to the total amount of kinetic energy is that as the train of coaster train loses height, they tend to speed up, this makes their potential energy to convert to kinetic energy due to the height, and as the motion continues, there is continuous gaining and losing of height by the object and its speed.
Each time there is a gain in height, there is also a corresponding conversion of kinetic energy to potential energy and while for each loss of height, there is also a corresponding conversion of potential energy to kinetic energy and this is as a result of speed.
This illustrates the relationship between work and energy.