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serious [3.7K]
3 years ago
7

I need help please with this question

Physics
1 answer:
Sergio039 [100]3 years ago
3 0

Explanation:

it's B =) hhggusucvgaugcavsjssnd

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The atomic radius of metal X is 1.20 × 102 picometers (pm) and a crystal of metal X has a unit cell that is face-centered cubic.
dmitriy555 [2]
The density of the metal can be determined through the formula [n*MW]/ Na*[a^3] . substituting, we get, 

<span>d = [n*MW]/ Na*[a^3] 
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4 years ago
What important scientific advance made bacteria less dangerous to humans
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3 years ago
A car travels a distance of 200 miles in 3.5 hours in a given trip. What is the average speed of the car in that
erica [24]

Taking into account the definition of speed, the average speed of the car in the trip is 57.14 \frac{miles}{hour}.

<h3>Definition of speed</h3>

Speed is a physical magnitude that relates the displacement of an object and the time it takes to make this change in position.

So, the speed can be defined as the amount of space traveled per unit of time with which a body moves and can be calculated using the expression:

speed=\frac{displacement}{time}

Speed has units of \frac{distance}{time}, such as \frac{meters}{second} or \frac{miles}{hour}.

<h3>Average speed of the car</h3>

In this case, you know that:

  • displacement= 200 miles
  • time= 3.5 hours

Replacing in the definition of speed:

speed=\frac{200 miles}{3.5 hours}

<u><em>speed= 57.14 </em></u>\frac{miles}{hour}

Finally, the average speed of the car in the trip is 57.14 \frac{miles}{hour}.

Learn more about velocity:

brainly.com/question/4418301

brainly.com/question/24990123

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brainly.com/question/25288184

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7 0
2 years ago
Water flows over a section of Niagara Falls at the rate of 1.2×106 kg/s and falls 50.0 m. How much power is generated by the fal
quester [9]

Answer:

5.88×10⁸ W

Explanation:

Power = energy / time

P = mgh / t

P = (m/t) gh

P = (1.2×10⁶ kg/s) (9.8 m/s²) (50.0 m)

P = 5.88×10⁸ W

7 0
3 years ago
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