Given : The atmospheric pressures at the top and the bottom of a building are read by a barometer to be 96.0 and 98.0 kPa. If the density of air is 1.0 kg/m³.

To find : The height of the building ?

Solution :

We have given atmospheric pressures,

$P_{\text{top}}=96\ kPa$

$P_{\text{bottom}}=98\ kPa$

The density of air is 1.0 kg/m³ i.e. $\rho_a=1\ kg/m^3$

Atmospheric pressure reduces with altitude,

The height of the building is given by formula,

$H=\frac{\triangle P}{\rho_a\times g}$

$H=\frac{P_{\text{bottom}}-P_{\text{top}}}{\rho_a\times g}$

$H=\frac{(98-96)\times 10^3}{1\times 9.8}$

$H=\frac{2000}{9.8}$

$H=204\ m$

Therefore, Option d is correct.

The height of the building is 204 meter.

4 0

4 years ago

Please help are these correct

marysya [2.9K]

Answer:

D 2 1/3 Ft^2

Step-by-step explanation:

We know that this is a triangle, so the area is

A = 1/2 bh

The base is 1 1/6 and the height is 4

Changing 1 1/6 to and improper fraction

1 1/6 = (6*1 +1)/6 = 7/6

A = 1/2 * 7/6 *4

A = 28/12

A = 7/3

Changing back to a mixed number

A = 2 1/3 ft^2

6 0

3 years ago

Read 2 more answers

Eight less than the product of 2 and a number equals 5

Novay_Z [31]

Answer:

6.5

Step-by-step explanation:

I'm not sure if its right but:

(2 × x) - 8 = 5

2x = 13

x = 6.5

6 0

3 years ago

Which expression is equivalent to 14x - 7 + 3(2x - 5)

kramer

Answer:

2(10x - 11)
20x - 22

I hope this helps!

5 0

3 years ago

Read 2 more answers