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Aneli [31]
3 years ago
13

A reagent is added to the blue solution to identify the copper 2 ions name the blue solution​

Physics
2 answers:
bixtya [17]3 years ago
5 0

Answer:

The blue solution is named copper sulfate

IRINA_888 [86]3 years ago
3 0

Answer:

buriret i belive

Explanation:

.

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A disk, with a radius of 0.25 m, is to be rotated like a merry-go-round through 800 rad, starting from rest, gaining angular spe
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Answer:

a) T_{min} = 80\,s

Explanation:

a) Let consider that disk accelerates and decelerates at constant rate. The expression for angular acceleration and deceleration are, respectively:

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Since angular acceleration and deceleration have same magnitude but opposite sign. Let is find the maximum allowed angular speed from maximum allowed centripetal acceleration:

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\omega_{max} = \sqrt{\frac{a_{r,max}}{r} }

\omega_{max} = \sqrt{\frac{100\,\frac{m}{s^{2}} }{0.25\,m} }

\omega_{max} = 20\,\frac{rad}{s}

Maximum magnitude of acceleration/deceleration is:

\alpha = 0.5\,\frac{rad}{s^{2}}

The least time require for rotation is:

T_{min} = 2\cdot \left(\frac{20\,\frac{rad}{s} }{0.5\,\frac{rad}{s^{2}} }  \right)

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