Physics, 17.09.2019 16:00 alexanderjones9116

Aplanet’s gravity is related to which of the following? (points : 5)
orbit
weight and density
surface area
mass and size
a?
what is the removal of trees without adequate replanting? (points : 5)
bioremediation
a carrying capacity
deforestation
a monoculture
c?
according to hubble’s law, the farther away a galaxy is,
(points : 5)
the faster it is moving toward us
the slower it is moving toward us
the slower it is moving away from us
the faster it is moving away from us
c? ?
electromagnetic energy can be defined as which of the following? (points : 5)
the waves of the electromagnetic spectrum
energy that moves as particles at the speed of light
the frequency of the emission spectrum
energy that moves as a wave at the speed of light
b?

Answers: 1

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Answers

-- The gravitational force that you feel when you stand on the surface
of a planet depends on the planet's mass and size. It has nothing
to do with the planet's orbit. (Of course,"size" is also related to the
planet's mass, density, and surface area.)

-- One possible cause of deforestation is the removal of trees without
adequate replanting.

-- According to Hubble’s Law, the farther away a galaxy is, the faster
it is moving away from us

-- Electromagnetic energy can be defined as energy that moves at
the speed of light. If you conduct experiments to determine whether
the electromagnetic energy is moving in the form of particles or waves,
you find that it behaves as both.

Answer from: Quest

answer;

d. are made mostly of liquid

explanation;

-the general composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.

Answer from: Quest

we have been given a quadratic function $f(x)=(x-5)^{2} +2$ and we need to restrict the domain such that it becomes a one to one function.

we know that vertex of this quadratic function occurs at (5,2).

further, we know that range of this function is $[2,\infty)$ .

if we restrict the domain of this function to either $(-\infty,5]$ or $[5,\infty)$ , it will become one to one function.

let us know find its inverse.

$y=(x-5)^{2}+2$

upon interchanging x and y, we get:

$x=(y-5)^{2}+2$

let us now solve this function for y.

$(y-5)^{2}=x-2\\ y-5=\pm \sqrt{x-2}\\ y=5\pm \sqrt{x-2}\\$

hence, the inverse function would be $f^{-1}(x)=5+\sqrt{x-2}$ if we restrict the domain of original function to $[5,\infty)$ and the inverse function would be $f^{-1}(x)=5-\sqrt{x-2}$ if we restrict the domain to $(-\infty,5]$ .

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Aplanet’s gravity is related to which of the following? (points : 5)
orbit
weight and...

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