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bulgar [2K]
2 years ago
10

The zinc plate is coated with mercury ​

Physics
1 answer:
raketka [301]2 years ago
8 0
Amalgamating is the coating of zinc plate with mercury.
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On a straight road with the +x axis chosen to point in the direction of motion, you drive for 5 hours at a constant 20 miles per
Leviafan [203]

Answer:

v = 26.7 mph

Explanation:

During the first 5 hours, at a constant speed of 20 mph, we find the total displacement to be as follows:

Δx₁ = v₁*t₁ = 20 mph*5 h = 100 mi

Assuming we can neglect the displacement during the speeding up from 20 to 60 mph, we can find the the total displacement at 60 mph as follows:

Δx₂ = v₂*t₂ = 60 mph*1 h = 60 mi

So, the total displacement during all the trip wil be:

Δx = Δx₁ + Δx₂ = 100 mi + 60 mi = 160 mi

So we can find the the average velocity during the 6-hour period, applying the definition of average velocity, as follows:

v = Δx / Δt = 160 mi / 6 h = 26.7 mph

8 0
3 years ago
CO2 , NaCl , HCl can be classified as ?
ExtremeBDS [4]
I suppose they can all be classified as compounds
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3 years ago
If it were possible to move a star towards the earth then its apparent magnitude number would ______ while its absolute magnitud
ArbitrLikvidat [17]

If it were possible to move a star towards the earth then its apparent magnitude number would decrease while its absolute magnitude number would stay the same.

Definition of apparent magnitude:

The luminosity of a celestial body (such as a star) as observed from the earth compare absolute magnitude.

So for example, the apparent magnitude of the Sun is -26.7 and is the brightest celestial object we can see from Earth. However, if the Sun were 10 parsecs away, its apparent magnitude would be +4.7, only about as bright as Ganymede appears to us on Earth.

Definition of absolute magnitude:

Absolute magnitude is a measure of the luminosity of a celestial object on an inverse logarithmic astronomical magnitude scale.

To learn more about apparent magnitude here

brainly.com/question/2949443

#SPJ4

5 0
1 year ago
(30 points) Air enters a compressor at 1 bar, 310 K, and is compressed adiabatically to 12 bar, 630 K. The air exiting the compr
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Answer:

‍♀️‍♀️

Explanation:

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2 years ago
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I think its the last one, a student slips on the ice in front of school and sprains his ankle.  An example of a natural fiber could be cotton B.
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