All categories

3 years ago

Explain test that would be made to find and whether such a

Physics

1 answer:

fredd [130]3 years ago

7 0

Answer:

slightly tilt the barometer below barometric height.if the mercury fills up the space,then there Is no air.if it doesnt,then there is air

You might be interested in

An object increases its velocity from 22 m/s to 36 m/s in 5 s. What is the acceleration of the

gregori [183]

Explanation:

Using Kinematics,

we have a = (v - u) / t.

Therefore a = (36m/s - 22m/s) / 5s = 2.8m/s².

6 0

3 years ago

A tube 1.20 m long is closed at one end. A stretched wire is placed near the open end. The wire is 0.350 m long and has a mass o

Ksju [112]

Answer:

71.4583 Hz

67.9064 N

Explanation:

L = Length of tube = 1.2 m

l = Length of wire = 0.35 m

m = Mass of wire = 9.5 g

v = Speed of sound in air = 343 m/s

The fundamental frequency of the tube (closed at one end) is given by

$f=\frac{v}{4L}\\\Rightarrow f=\frac{343}{4\times 1.2}\\\Rightarrow f=71.4583\ Hz$

The fundamental frequency of the wire and tube is equal so he fundamental frequency of the wire is 71.4583 Hz

The linear density of the wire is

$\mu=\frac{m}{l}\\\Rightarrow \mu=\frac{9.5\times 10^{-3}}{0.35}\\\Rightarrow \mu=0.02714\ kg/m$

The fundamental frequency of the wire is given by

$f=\frac{1}{2l}\sqrt{\frac{T}{\mu}}\\\Rightarrow f^2=\frac{1}{4l^2}\frac{T}{\mu}\\\Rightarrow T=f^2\mu 4l^2\\\Rightarrow T=71.4583^2\times 0.02714\times 4\times 0.35^2\\\Rightarrow T=67.9064\ N$

The tension in the wire is 67.9064 N

7 0

3 years ago

Leticia timed how fast five apple slices turned brown (oxidate) after being being dipped in different preservatives such as lemo

FrozenT [24]

Answer:sorry but i no understand

Explanation:

6 0

3 years ago

Read 2 more answers

Why do we need to learn about median and mode?

siniylev [52]

We need to learn about median and mode because they are both important in statistical data and statistical data is what shows us important information about the world around us.

3 0

4 years ago

Are tsunamis earthquakes, or are they CAUSED by earthquakes?

neonofarm [45]

Answer:son causados por terremotos, ya que la fuerza de la tierra hace movimiento en las placas tectonicas debajo del mar creando asi los tsunamis.

Explanation:

espero haberte ayudado :)

7 0

2 years ago

Read 2 more answers