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3 years ago

11

Which air molecules within our atmosphere are important in absorbing infrared radiation, and therefore keeping our atmosphere wa

rmer than it would be without them?

1 answer:

kozerog [31]3 years ago

6 0

Answer:

Ozone

Explanation:

The Ozone or green house gases prevents this Ultraviolent radiation from the sun.

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The mass of a star is 1.61·1031 kg and its angular velocity is 1.60E-7 rad/s. Find its new angular velocity if the diameter sudd

Tcecarenko [31]

Answer:

ω₂ = 1.9025 x 10⁻⁶ rad/s

Explanation:

given,

mass of star = 1.61 x 10³¹ kg

angular velocity = 1.60 x 10⁻⁷ rad/s

diameter suddenly shrinks = 0.29 x present size

r₂ = 0.29 r₁

using conservation of angular momentum

I₁ ω₁ = I₂ ω₂

$(\dfrac{2}{5}mr_1^2)\omega_1=(\dfrac{2}{5}mr2^2)\omega_2$

$r_1^2\times \omega_1=r_2^2\times \omega_2$

$r_1^2\times 1.60\times 10^{-7}=(0.29r_1)^2\times \omega_2$

$1.60\times 10^{-7}=0.0841\times \omega_2$

$\omega_2=\dfrac{1.60\times 10^{-7}}{0.0841}$

ω₂ = 1.9025 x 10⁻⁶ rad/s

5 0

3 years ago

A metal block of mass 265 g rests at a point 2.4 m from the center of a horizontal rotating wooden platform. The coefficient of

FrozenT [24]

Answer:

The minimum angular velocity of the platform what whould the block slides away is w= 2.26 rad/s.

Explanation:

m= 0.265 kg

r= 2.4 m

μ= 0.257

g= 9.8 m/s²

W= m * g

W= 2.597 N

Fr= μ * W

Fr= 0.66 N

∑F = m * ac

W+Fr = m * ac

(W+ Fr) / m = ac

ac= 12.29 m/s²

ac= w² * r

√(ac/r)= w

w= 2.26 rad/s

3 0

4 years ago

Calcular el volumen de un cubo 36 cm

3241004551 [841]

Answer:

vol = 46,566 cm³

Explanation:

calcular el volumen de un cubo 36 cm

find: volume

let side of a cube = 36 cm

vol = side ³

vol = 36 ³

vol = 46,566 cm³

8 0

3 years ago

Why do electrons flow in a circuit

Lerok [7]

Answer:

When a negative charge is brought near one end of a conductor electrons are repelled. ... When electric voltage is applied, an electric field within the metal triggers the movement of the electrons, making them shift from one end to another end of the conductor. Electrons will move toward the positive side.

6 0

3 years ago

What is operating a vocation

mash [69]

Answer:

(I UNDERLINED AND MADE ITALIC THE MOST IMPORTANT INFORMATION) <em><u>A vocation is an occupation to which a person is especially drawn or for which they are suited, trained, or qualified. Though now often used in non-Latin vocātiō 'a call, summons')religious contexts, the meanings of the term originated in Christianity. (from </u></em>

Explanation:

<em><u>A call, summons, or impulsion to perform a certain function or enter a certain career, esp. a religious one. Vocation is defined as a call to do something, especially regarding religious work.</u></em> The woman's desire to become a nun is an example of vocation.<u><em> a strong impulse or inclination to follow a particular activity or career</em></u>.<em><u> a divine call to God's service or to the Christian life. a function or station in life to which one is called by God</u></em>: the religious vocation; the vocation of marriage. <u><em>There are many different types of vocations in today's society. The three significant vocations are, single life, married life, and religious life. </em></u>Single life is one of the three types of vocation. <u><em>Definition of Vocation and Career: Vocation is what you strive to do in your life. It is the career you want to be in. Career, on the other hand, is a series of jobs, even change of professions, in a lifetime of an individual. Vocation is literally your "calling", what you are good for or destined for. It usually is a property/talent/predisposition of your person. A mission, in contrast, is a particular task given to you. Even if you are on "a mission from God", there may be retirement from it eventually.</em></u>

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6 0

3 years ago