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Arte-miy333 [17]
3 years ago
5

In which of the following eons did a significant amount of oxygen gas exist in Earth's atmosphere?

Physics
1 answer:
Llana [10]3 years ago
6 0
C that is the answer
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When scientists observed the light from stars and galaxies, they noticed that their color shifted toward the end of the visible
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Color shifted towards the end is C red
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When the potential difference between the plates of a capacitor is increased by 3.50 V , the magnitude of the charge on each pla
hodyreva [135]

Answer:

42.9 μF

Explanation:

V = 3.50 V, Q = 150 μC

C = Q/V = 150/3.50 μF = 42.9 μF

5 0
3 years ago
A Imagine you derive the following expression by analyzing the physics of a particular system: v2 + 2az. The problem requires so
Nuetrik [128]

Answer:

  z = 93.2 m

Explanation:

We can appreciate that this expression is equivalent to the linear motion equation with constant acceleration

           v² = v₀² + 2 a d

If we make a term-to-term comparison with the expression obtained, they are equivalent

          u² = v² + 2 a z

From here we can clear the position

           2 a z = u² –v²

           z = (u² –v²) / 2 a

Let's calculate

For the speed to reduce the acceleration must be negative

         

         z = (0 - 21.8²) / 2(- 2.55)

         z = 93.2 m

7 0
3 years ago
Bob is cleaning his dishwasher with white vinegar by putting a bowl of this ____________ mixture in the top of an empty dishwash
Maurinko [17]

Answer: Baking Soda

A mixture of white vinegar and baking soda in a bowl will produce a paste that is helpful in removing stains and sanitizing a dishwasher. To meticulously clean your dishwasher, spread the mixture onto the build-up crust in the bottom basin of the washer itself then let it sit for 15-20 minutes before running a short cycle using the hottest water. The baking soda will further absorb the unpleasant odors and will leave your dishwasher smell fresh.

 

 

7 0
3 years ago
If the overall magnification of a series of two lenses is 30x, and one lens magnifies 5x, what is the magnification of the other
dimulka [17.4K]

Answer:

Explanation:

Given

Overall magnification M=30 x

One lens magnification is 5 x

suppose the magnification of other lens is y

A compound lens is made up of series of lenses either  of same or of different magnification so

y is given by

y=\frac{30 x}{5 x}=6 x

If 5 x lens is replaced by 7 x lens then total magnification is

7 x\times 6 x=42 x

4 0
3 years ago
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