3 years ago

45:56

Physics

1 answer:

Romashka-Z-Leto [24]3 years ago

7 0

Answer:

A car traveling south with its cruise control set

Explanation:

Turning could cause anything to slow down but going forward could mean that anything could go faster.

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Mashutka [201]

Answer:

whichever teacher gave you this question is a legend

Explanation:

8 0

3 years ago

An expensive vacuum system can achieve a pressure as low as 1.00 × 10 − 8 N / m 2 at 19.5 °C . How many atoms are there in a cub

Stels [109]

Answer:

2475042

Explanation:

P = Pressure = [/tex]1\times 10^{-8}\ N/m^2[/tex]

V = Volume = 1 cm³

T = Temperature = 19.5 °C

R = Gas constant = 8.341 J/mol K

$N_A$ = Avogadro's number = $6.022\times 10^{23}$

n = Amount of substance

From ideal gas law we have

$PV=nRT\\\Rightarrow n=\frac{PV}{RT}\\\Rightarrow n=\frac{1\times 10^{-8}\times 1\times 10^{-6}}{8.314(273.15+19.5)}\\\Rightarrow n=4.11\times 10^{-18}$

Number of atoms is given by

$n\times N_A\\ =4.11\times 10^{-18}\times 6.022\times 10^{23}\\ =2475042\ atoms$

The number of atoms in this vacuum is 2475042

8 0

3 years ago

A parallel-plate capacitor is constructed from two aluminum foils of 1 square centimeter area each placedon both sides of a rubb

Svet_ta [14]

Answer:

The voltage will be 0.0125V

Explanation:

See the picture attached

4 0

4 years ago

give an example of how the law of inertia is demonstrated (a) for moving objects and (b) for objects at rest

lakkis [162]

Answer:

Both

Explanation:

Both of them are part of newtons laws of motion

6 0

2 years ago

What can be broken down into tiny fundamental subatomic particles?

Nana76 [90]

The correct answer is matter. Matter is a physical substance, so it is that only option provided that can be broken down to the subatomic particle level.

4 0

3 years ago