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Allisa [31]
3 years ago
9

An element's atomic number is 34. How many protons would an atom of this element have?

Physics
1 answer:
Elena-2011 [213]3 years ago
7 0

34. The element would have 34 protons. Also 34 electrons.

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If a 4 engine jet accelerates down a runway at 8.7 m/s^2, Suppose now that all 4 engins are operational on the jet from the prev
soldi70 [24.7K]

Answer:

5.22m/s^2

Explanation:

One of the first propulsion characteristics given in the example is that all engines are equal.

In this way if we have 4 engines running at the same time, it means that its capacity is 100%.

Under this premise, if 100% is found, the Jet is capable of reaching a speed of 8.7m / s ^ 2.

However, the question is, what would happen if 2.4 "Engines" now work.

To do this then we make a simple equivalence,

If 4 engines is the equivalent of 100%, when would it be 2.4 engines?

X = \frac{2.4 * 100\%} { 4 }= 60\%

In this way it would mean that the body could be driven to 60% of its total.

So

Speed_{Decreased} = 8.7 * 60\% = 5.22 \frac{m}{s^2}

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3 years ago
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Iteru [2.4K]

Answer:

The correct option is;

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Explanation:

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\Delta S_{universe} = \Delta S_{system}  + \Delta S_{surroundings} >0

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3 years ago
A man standing on a bus remains still when the bus is at rest. When the bus moves forward and then
Hoochie [10]
This is an example of inertia - the body keeps it's energy because there is no force applied to it. When we try to stop it's motion, it resists. A man is not rigidly attached to the bus, so he keeps moving forward, at least until he hits the front window from inside. Answer is D.
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The answer is B.
She can measure the mass of the water, marble and the graduated cylinder with the balance.
The volume of the water can be shown on the marked graduated cylinder, the volume of the marble can be measured by the volume difference of the water before and after the marble is put in.
4 0
3 years ago
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Shayla was late for school. She ran the last half mile in 4 minutes. What was her average speed in miles per hour?
Shtirlitz [24]

Answer:

7.5 miles per  hour

Explanation:

6 0
3 years ago
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