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Olin [163]
4 years ago
11

Which does NOT represent one of Koch’s postulates?: isolate germs from an infected animal ,grow germs in a lab culture, inject g

erms into a healthy animal ,watch to determine how long it takes for the healthy animal to become ill
Physics
1 answer:
lina2011 [118]4 years ago
3 0
<span>The last statement does not represent one of Koch's postulate, that is, the postulate did not include determination of how long it takes for the healthy animal to become ill. Koch's postulate established four criteria for determining the causative organism for a particular disease. The criteria are: the causative organism must be present in all cases of the disease, the causative organism must be isolated from the diseased host and grown in pure culture, the causative organism from the pure culture must cause the disease when inoculated into a health susceptible animal and the causative organism must be re-isolated from the new host and proof to be the same as the original causative organism inoculated into the health animal.</span>
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a ball is projected horizontally with a velocity of 5 m per second from the top of a building 19.6 m high how long will the ball
zepelin [54]

Answer:

1.98s

Explanation:

The time taken to hit the ground is given by

h=ut+ 1/2 at^2

but u =0

so we have

h=1/2at^2

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t=√2h/g

√2×19.6/10

1.98s

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3 years ago
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6 0
4 years ago
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A worker assigned to the restoration of the Washington Monument is checking the condition of the stone at the very top of the mo
Mnenie [13.5K]

Answer:

Your answer is: K.E = 8.3 J

Explanation:

If the height (h) = 169.2 meters (m) and the mass (m) is 0.005 kilograms (kg) the total energy will be kinetic energy which is equal to the potential energy.

K.E = P.E and also P.E equals to mgh

Then you substitute all the parameters into the formula  ↓

P.E = 0.005 × 9.81 × 169.2

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7 0
3 years ago
A central air conditioner in a typical American home operates on a 220-V circuit and draws about 15 A
Zepler [3.9K]

Answer:

Find answers below.

Explanation:

Given the following data;

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a. To find the power;

Power = current * voltage

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b. To find the energy;

Time = 8 hours = 60 * 60 * 8 = 28800 seconds

Energy = power * time

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8 0
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Consider a thick cylindrical wire of radius a. What must be the functional form of the current density J so that the magnetic fi
NikAS [45]

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Explanation:

Check the attachment

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