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3 years ago

12

Which of the following best explains how earth is heated through radiation

1 answer:

lawyer [7]3 years ago

6 0

Answer:

The sun touches earth during daytime and the suns rays heat our earth giving us heat. The sun heating the earth is also considered radiation.

Explanation:

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If he completes the 200 m dash in 23 s and runs at constant speed throughout the race, what is his centripetal acceleration as h

Blababa [14]

Incomplete question.The complete one is here

A runner taking part in the 200m dash must run around the end of a track that has a circular arc with a radius curvature of 30m. The runner starts the race at a constant speed. If she completes the 200m dash in 23s and runs at constant speed throughout the race, what is her centripetal acceleration as she runs the curved portion of the track?

Answer:

$a_c=2.523m/s^2$

Explanation:

Given data

$L_{length}=200m\\r_{radius}=30m\\t_{time}=23s$

Required

Centripetal acceleration

Solution

According to the motions equation the velocity given by:

$V_{velocity}=\frac{L_{length}}{t_{time}}\\V_{velocity}=\frac{200m}{23s}\\V_{velocity}=8.7m/s$

The centripetal acceleration is given by:

$a_{c}=\frac{V_{velocity}^2}{r_{radius}}\\ a_c=\frac{(8.7m/s)^2}{30m}\\ a_c=2.523m/s^2$

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4 years ago

The scale is called an absolute temperature scale, and it's zero point is called absolute sero

Kipish [7]

Absolute zero is from the Kelvin scale.

8 0

3 years ago

If your good in science please help me with this question.

Dahasolnce [82]

Answer:

A inertia

B force and acceleration

C force

D action reaction

E action reaction

F

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3 years ago

Observe the figure below. The dashed red line with diamond symbols represents the monthly mean values, centered on the middle of

ddd [48]

You are correct in your thinking
hope this helps

6 0

3 years ago

The graph shows the temperature of a room, in degrees Fahrenheit, over time, in minutes. How long was the temperature decreasing

Artemon [7]

Answer:

75 to 63 which is a drop of 12 degrees over a period of 10 seconds.

Explanation:

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4 years ago

Read 2 more answers