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Helen [10]
2 years ago
10

Barium metal (d = 3. 51 g/cm³) has a body-centered cubic structure. Calculate the edge length of a unit cell. (1 m = 10¹² pm).

SAT
1 answer:
Pie2 years ago
3 0

The edge length of a unit cell of the Barium metal is; 3.01cm

<h3>Density, Mass and Volume</h3>

The mass number of one mole of barium metal is; 137 g.

On this note, the volume of a unit cell of Bromine metal can be obtained from the relation;

  • Volume = Mass/density = 137/3.5 = 27.4 cm³.

On this note, the edge length of a unit cell can be evaluated as follows;

  • Volume = length³

  • Length = ³√27.4

  • Length = 3.01cm

Read more on Density, Mass and Volume;

brainly.com/question/6838128

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If it takes 10 minutes to walk to mile how many minutes will it take to walk miles
aleksklad [387]

Answer:

more than 20 minutes

Explanation:

this is because one mile is 10 minutes so 2miles will be more than 20-30 minutes

6 0
2 years ago
How many nations initially signed the Treaty of the Meter?
Nutka1998 [239]

Answer:

17

Explanation:

6 0
3 years ago
The Boeing 757-200 ER airliner carries 200 passengers and has doors with a height of 72 in. Heights of men are normally distribu
Andreyy89

The probability that he can fit through the doorway without bending is 14.92%

<h3>How to find the p-value probability?</h3>

We are given;

Mean; μ = 69.5

Standard deviation; σ = 2.4

Sample mean; x' = 72

The standardized score is the value x decreased by the mean and then divided by the standard deviation. Thus;

z = (x' − μ)/σ

​z = (72 − 69.5)/2.4

​z = 1.04

Using p-value from z-score calculator gives us;

p-value = 0.1492 = 14.92%

Thus, the probability that he can fit through the doorway without bending is 14.92%

Complete Question is;

The Boeing 757-200 ER airliner carries 200 passengers and has doors with a height of 72 in. Heights of men are normally distributed with a mean of 69.5 in. and a standard deviation of 2.4 in. If a male passenger is randomly selected, find the probability that he can fit through the doorway without bending.

Read more about P-value from z-scores at; brainly.com/question/25638875

#SPJ1

6 0
2 years ago
Un camión traslada 12 vehículos. Algunos son autos y otros son camionetas. Cada auto tiene una masa de 2 toneladas y cada camion
bagirrra123 [75]

Encontrando y resolviendo un sistema de ecuaciones, veremos que hay 9 camionetas y 3 autos.

Sabemos que hay 12 vehículos en el camión.

Definamos:

  • a = número de autos
  • c = número de camionetas.

tal que a + c = 12

La masa total será:

a*2 ton + c*3 ton

Y sabemos que el camión lleva 33 toneladas, entonces tenemos:

a*2 ton + c*3 ton = 33 ton

Así encontramos el sistema de ecuaciones:

a + c = 12

a*2 ton + c*3 ton = 33 ton

Para resolverlo, primero aislamos una de las variables en una de las ecuaciones, aislemos a en la primera:

a = 12 - c

Ahora reemplazamos esto en la otra:

(12 - c)*2 ton + c*3 ton = 33 ton

24 ton + c*1 ton = 33 ton

c*1 ton = 9 ton.

c = 9

Es decir, hay 9 camionetas.

Entonces los 3 vehículos restantes son autos.

Hay 9 camionetas y 3 autos.

Sí quieres aprender más, puedes leer:

brainly.com/question/17174746

6 0
3 years ago
Mason ran 2/3 mile in 1/3 hours. What was nasons unit rate?
UkoKoshka [18]

2/3 miles

------------

1/3 hour


copy dot flip

2/3 * 3/1  

2 miles per hour  is the unit rate


Answer: 2 miles per hour

7 0
3 years ago
Read 2 more answers
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