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3 years ago

11

How do elements form?

1 answer:

malfutka [58]3 years ago

8 0

The answer is A. through fusion in stars and supernova.

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Question: Describe what drives the cycling of water between the different phases and locations on Earth.

Cerrena [4.2K]

Water set free by magma began to cool down the Earth's atmosphere, until it could stay on the surface as a liquid. ... The sun, which drives the water cycle, heats water in the oceans. Some of it evaporates as vapor into the air. Ice and snow can sublimate directly into water vapor.

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3 years ago

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the velocity of a sound on a particular day outside is 331 meters/second. what is the frequency of a tone if it has a wavelength

hichkok12 [17]

Wavelength*frequency=velocity
(331m/s)/(.6m)
Frequency = 551.666 1/s

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3 years ago

The lungs, nose, and trachea are organs of the respiratory system. Which best describes these organs?

attashe74 [19]

<span>They deliver oxygen to the blood.

For the regular body activities to be carried out.

Acid-base balance or body temperature control.</span>

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3 years ago

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. Egbert is in a rowboat four miles from the nearest point on Egbert a straight shoreline. He wishes to reach a house 12 miles f

swat32

Answer:

$t=\frac{13}{3} =4.33\ mi.hr^{-1}$

Explanation:

Given:

Distance from the shore, $s=4\ mi$

distance of house from the shore, $h=12\ mi$

speed of rowing, $v_r=3\ mi.hr^{-1}$

speed of walking, $v_w=4\ mi.hr^{-1}$

<em>For the least amount of time to reach the house one must row at the nearest point on the shore and then walk from there.</em>

<u>Now the time taken to reach the shore:</u>

$t_s=\frac{s}{v_s}$

$t_s=\frac{4}{3}\ mi.hr^{-1}$

<u>Time taken in walking to house from the shore:</u>

$t_h=\frac{h}{v_w}$

$t_h=\frac{12}{4}$

$t_h=\frac{12}{4}$

$t_h=3\ mi.hr^{-1}$

<u>Therefore total time taken:</u>

$t=t_h+t_s$

$t=\frac{13}{3} =4.33\ mi.hr^{-1}$

6 0

3 years ago

Having aced your Physics 2111 class, you get a sweet summer-job working in the International Space Station. Your room-mate, Cosm

Sphinxa [80]

Answer:

a

The speed is $s = 5.857 m/s$

b

The distance is $D = 22.4 \ m$

Explanation:

From the question we are told that

The speed of the banana is $v = 16 \ m/s$

The distance from my location is $d = 8.2 \ m$

The time taken is $t = 1.4 \ s$

The speed of the ice cream is

$s = \frac{d}{t}$

substituting values

$s = \frac{8.4}{1.4}$

$s = 5.857 m/s$

The distance of separation between i and Valdimir is the same as the distance covered by the banana

So

$D = v * t$

substituting values

$D = 16 * 1.4$

$D = 22.4 \ m$

3 0

3 years ago