Question 6

Mathematics

1 answer:

oee [108]2 years ago

7 0

Answer:

The answer is 200km

Step-by-step explanation:

250\5=50,50×4=200

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A race car moving along a circular track has a centripetal acceleration of 15.4^2. If the car has a tangential speed of 30 what

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In uniform circular motion (circular motion at same speed), (tangential velocity)^2/radius = acceleration towards the center of the circle (centripetal acceleration)
Also, radius is the distance to the center of the circle (track). 
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radius = (900.m^2/s^2) / (15.4m/s^2) 
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pav-90 [236]

Answer: Bottom left corner

Angle DEC and Angle DEH

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Explanation:

I recommend opening your favorite paint program, and using different colors to mark on the drawing as I have done below (see attached image). Note how angle DEC is in red and angle DEH is in blue. The two angles are adjacent, meaning they share the same ray (in this case, ray ED) and they form a straight angle.

Because they form a straight angle, or straight line, this means the two angles are supplementary. Supplementary angles always add to 180.

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