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Annette [7]
3 years ago
6

During a chemical reaction, some substances are completely consumed while others my not be. What is the substance that is comple

tely consumed in a chemical reaction?
Question 3 options:

reactant


product


a limiting reactant
Physics
1 answer:
LUCKY_DIMON [66]3 years ago
5 0

Answer:

It is Limiting Reactant

Explanation:

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Two bicycle tires are set rolling with the same initial speed of 3.30 m/s along a long, straight road, and the distance each tra
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Answer:

At low pressure- \mu_{k}=0.02315

At high pressure- \mu_{k}=0.00445

Explanation:

Initial speed, V_{i}=3.3 m/s

Final speed, V_{f}=3.3/2= 1.65 m/s

Net horizontal force due to rolling friction F_{net}=\mu_{k} mg where m is mass, g is acceleration due to gravity, \mu_{k} is coefficient of rolling friction

From kinematic relation, V_{f}^{2}- V_{i}^{2}=2ad

For each tire,

V_{f}^{2}- V_{i}^{2}=2\mu_{k}gd

Making \mu_{k} the subject

\mu_{k}=\frac {V_{f}^{2}- V_{i}^{2}}{2gd}

Under low pressure of 40 Psi, d=18 m

\mu_{k}=\frac {1.65^{2}- 3.3^{2}}{2*9.8*18}=-0.02315

Therefore, \mu_{k}=0.02315

At a pressure of 105 Psi, d=93.7

\mu_{k}=\frac {1.65^{2}- 3.3^{2}}{2*9.8*93.7}=-0.00445

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The pulley system below uses a gasoline engine to raise a drill head up through a smooth drill pipe. The engine provides a const
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NB: The diagram of the pulley system is not shown but the information provided is sufficient to answer the question

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P = 4157.79 W

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