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3 years ago

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An internet radio broadcast isA. not excludable and not rival in consumption.B. excludable and not rival in consumption.C. exclu

dable and rival in consumption.D. not excludable and rival in consumption.

1 answer:

rodikova [14]3 years ago

8 0

Answer:

A. not excludable and not rival in consumption.

Explanation:

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Need help with getting the answer!

wlad13 [49]

Answer:

D. Salt Weathering

Explanation:

Salt weathering is defined as a geomorphic process resulting in the physical disintegration of rocks or stones and in the fretting of their surfaces. Often you tend to find the best examples of salt weathering in dessert areas and coastal areas. You can find three distinct types of weathering which are biological weathering, physical weathering, and chemical weathering.

8 0

3 years ago

A newly discovered planet has the same mass as the Earth, but a person standing on the surface of the planet experiences a force

Dafna11 [192]

This question deals with the acceleration due to gravity on the surface of the planet. The value of the acceleration due to gravity on the surface of two planets, that is Earth and on the surface of another planet are compared to find out the relation between the radii of both planets, provided their masses are the same.

The correct option for the radius of the new planet is "Option 3: Square Root of 3 R"

The value of the acceleration due to gravity on the surface of a planet is given by the following formula:

$g = \frac{GM}{R^2}$ ----------- eqn(1)

where,

g = acceleration due to gravity on Earth

G = Universal Gravitational Constant

M = mass of the Earth

R = Radius of the Earth

Now, the same formula for the acceleration due to gravity on the surface of the other planet can be written as follows:

$g' = \frac{GM'}{R'}\\\\$ ------------- eqn(2)

where,

g' = acceleration due to gravity on the new planet

G = Universal Gravitational Constant

M' = mass of the new planet

R' = Radius of the new planet

According to the given condition, the new planet has the same mass as the Earth's mass but the acceleration due to gravity on the surface of the new planet is one-third of the acceleration due to gravity on the surface of Earth.

$M'=M\\\\g'=\frac{1}{3}g$

using eqn (1) and eqn (2):

$\frac{GM}{R'^2}=\frac{1}{3}\frac{GM}{R^2}\\\\R'^2=3R^2\\\\R' = \sqrt{3}R$

Hence, the radius of the new planet is found to be equal to the square root of 3 times the radius of the Earth (Square Root of 3 R).

Learn more about acceleration due to gravity on the surface of a planet here:

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7 0

3 years ago

Which color had shortest wavelength

IgorLugansk [536]

the color violet has the shortest wavelength!

7 0

3 years ago

a steam engine work on its vicinity 285 k heat is released with the help of 225 c energy absorbed to the system what is the effi

zvonat [6]

The efficiency of steam engine is 26.66 %.

<h3>What is Efficiency?</h3>

The efficiency is defined as the work done by the engine divided by the heat supplied.

Work done is the difference between the heat supplied and heat rejected.

So, efficiency η = (Qs -Qr) / Qs

Given is the heat supplied Qs = 225 Joules and heat rejected Qr =285 . then the work done is

W = 225 -225 = - 60 Joules

Efficiency η = 60/225 x 100%

η = 26.66 %

Thus, the efficiency of the steam engine is 26.66 %.

Learn more about efficiency.

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8 0

2 years ago

Read 2 more answers

you hold in your hand a block of material with 3x10^27 protons , 3x10^37 neutrons , and 3.1x10^27 electrons. what is the mass of

krok68 [10]

1) The total mass is $5.01\cdot 10^{10} kg$

2) The total charge is $-1.6\cdot 10^{-7} C$

Explanation:

1)

To calculate the total mass of the particles, we have to write down the mass of each particle first:

Proton: $m_p = 1.67\cdot 10^{-27} kg$

Neutron: $m_n = 1.67\cdot 10^{-27} kg$

Electron: $m_e = 9.11\cdot 10^{-31} kg$

Here we have:

3x10^27 protons

3x10^37 neutrons

3.1 x10^27 electrons

So, the total mass is:

$M=(3\cdot 10^{27})m_p + (3\cdot 10^{37})m_n + (3.1\cdot 10^{27})m_e=5.01\cdot 10^{10} kg$

2)

To calculate the total charge of the particles, we have to write down the charge of each particle first:

Proton: $q_p = 1.6 \cdot 10^{-19}C$

Neutron: $q_n = 0$

Electron: $q_e = -1.6\cdot 10^{-19}C$

Here we have:

3x10^27 protons

3x10^37 neutrons

3.1 x10^27 electrons

So, the total charge is:

$Q=(3\cdot 10^{27})q_p + (3\cdot 10^{37})q_n + (3.1\cdot 10^{27})q_e=-1.6\cdot 10^{-7} C$

Learn more about protons, neutrons and electrons:

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7 0

3 years ago