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pochemuha
2 years ago
8

A steel ball is traveling through water with a speed of x meters per second, where x is positive the drag force, F

Mathematics
1 answer:
frozen [14]2 years ago
3 0

Answer:

0.032

Step-by-step explanation:

The drag force is described as the force experienced by an object due to movement through a liquid. In this case it is water. The equation used for drag force F is:

F=0.5pu^2

the density of water is p=1000 kg/m³. We know that F=0.5  N.

0.5=0.5\cdot{1000}u^2

u=\sqrt{0.001}

u=0.031

The speed is 0.032 m/s

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2 years ago
Ramon is playing a game in which he must pull two blocks out of a bag containing red and yellow blocks. He cannot look, and he c
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The probability of choosing a red block first would be
\frac{x+4}{2x+4}
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since there are x yellow blocks, and after 1 is chosen, there are 2x+3 total blocks remaining.

This gives the total probability of 
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B) If there are 6 yellow blocks, there are 6+4=10 red blocks, and 10+6=16 total blocks.
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C) If there are 6 yellow blocks, there are 6+4=10 red blocks, and 10+6=16 total blocks.
The probability of getting a yellow block first is 6/16, and the probability of getting a second yellow block after the first one is 5/15.  Together this gives us
6/16(5/15) = 30/240 = 1/8 = 0.125 = 12.5%
6 0
2 years ago
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