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Westkost [7]
3 years ago
5

Help me plzzz?? I need help it on the picture

Physics
1 answer:
madam [21]3 years ago
3 0

No. 
The acceleration of gravity on or near Earth's surface is 9.8 m/s² ,
not 20 m/s² .

If it were 20 m/s², then you would weigh almost exactly double
what you really weigh now.
 
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While John is traveling along a straight interstate highway , he notices that the mile marker reads 248 km. John travels until h
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I'm just going to tell you the information you need but not the answer so you can learn from the problem.

Explanation:

So he was at 248 km mark and traveled 99 km to get to the 149km mark. Then he turns around to go back 18 km to the 167 km mark. That is all the information you need to complete the question I recommend drawing it out in your notes.

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Compressional forces within the crust can produce:
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Two cars A and B are 100m apart moving towards each other with
maxonik [38]

Let car A's starting position be the origin, so that its position at time <em>t</em> is

A: <em>x</em> = (40 m/s) <em>t</em>

and car B has position at time <em>t</em> of

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<em />

They meet when their positions are equal:

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(100 m/s) <em>t</em> = 100 m

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so the cars meet 1 second after they start moving.

They are 100 m apart when the difference in their positions is equal to 100 m:

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(subtract car B's position from car A's position because we take car A's direction to be positive)

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3 0
3 years ago
(1) find the density of a substance if the mass of the substance is 150kg and dimension 20mby10mby5m
Vikentia [17]

Answer:

0.15kg/m³

Explanation:

Density = mass/ volume

Given that

Mass = 150kg

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Volume = 20 x 10 x 5

Volume = 1000m³

Density = mass ➗ volume

Density = 150kg ➗ 1000m³

Density = 0.15kg/m³

I hope this was helpful, Please mark as brainliest  

3 0
3 years ago
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