Tor F<br> Science and technology<br> are<br> mutually beneficial.

What features form where two continental plate come together

ExtremeBDS [4]

Ridges, mountains, and volcanoes!

3 0

3 years ago

Interstellar space (far from any stars) contains atomic hydrogen (H) with a density of 1 atom/cm3 and at a temperature of about

Mandarinka [93]

Explanation:

Given that,

Number density $n= 1\ atom/cm^{3} =10^{6}\ atom/m^3$

Temperature = 2.7 K

(a). We need to calculate the pressure in interstellar space

Using ideal gas equation

$PV=nRT$

$P=\dfrac{nRT}{V}$

$P=\dfrac{10^{6}\times8.314\times2.7}{6.023\times10^{23}}$

$P=3.727\times10^{-17}\ Pa$

$P=36.78\times10^{-23}\ atm$

The pressure in interstellar space is $36.78\times10^{-23}\ atm$

(b). We need to calculate the root-mean square speed of the atom

Using formula of rms

$v_{rms}=\sqrt{\dfrac{3RT}{Nm}}$

Put the value into the formula

$v_{rms}=\sqrt{\dfrac{3\times8.314\times2.7}{1.007\times10^{-3}}}$

$v_{rms}=258.6\ m/s$

The root-mean square speed of the atom is 258.6 m/s.

(c). We need to calculate the kinetic energy

Average kinetic energy of atom

$E=\dfrac{3}{2}kT$

Where, k = Boltzmann constant

Put the value into the formula

$E=\dfrac{3}{2}\times1.38\times10^{-23}\times2.7$

$E=5.58\times10^{-23}\ J$

The kinetic energy stored in 1 km³ of space is $5.58\times10^{-23}\ J$ .

Hence, This is the required solution.

7 0

3 years ago

Which of these objects has the largest volume?

motikmotik

Answer:

The balloon

Explanation:

Since there are 100 cm or 1000 mm in a meter, you can rewrite the dimensions in the following way:

A cube of metal with a volume of 10,000 mm^3

A spherical balloon with a volume of 50,000,000 mm^3

A sample of water with a volume of 1,000 mm^3

Therefore, the balloon clearly has the most volume. Hope this helps!

3 0

3 years ago

Read 2 more answers

All changes in the original shape and/ or size of a rock body are called?

SVETLANKA909090 [29]

The answer that would best complete the given description above would be the term DEFORMATION. All changes in the original shape and/or size of a rock body are called deformations. Hope this answers your question. Have a great day ahead!

4 0

4 years ago

Read 2 more answers

A car accelerates at a rate of 3.0 m/s2. If its original speed is 8.0 m/s, how many seconds will it take the car to reach a fina

V125BC [204]

Answer:

5.7 s

Explanation:

Given:

a = 3.0 m/s²

v₀ = 8.0 m/s

v = 25.0 m/s

Find: t

v = at + v₀

25.0 m/s = (3.0 m/s²) t + 8.0 m/s

t ≈ 5.7 s

5 0

3 years ago

Tor F Science and technology are mutually beneficial.