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Umnica [9.8K]
3 years ago
13

A 20 N object is placed on a surface and starts to slide. What is the MOST likely reason the object begins to move?

Chemistry
1 answer:
ra1l [238]3 years ago
8 0

Answer:

c.

Explanation:

If the object starts to slide it must be on a slope.

There are 2 forces acting on the object - gravity and the friction between the object and the surface.

If sliding starts then the forces must be unbalanced.

The force of gravity is greater than the friction.

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Consider this reaction:
aleksklad [387]

Answer:   0.0345 sec

Explanation:

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Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

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k = rate constant

t = age of sample

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for completion of 20 % of reaction

t=\frac{2.303}{46.6}\log\frac{0.660}{\frac{20}{100}\times 0.660}

t=\frac{2.303}{46.6}\log\frac{0.660}{0.132}

t=0.0345sec

The time taken for the concentration of H_3PO_4 to decrease to 20% to its natural value is 0.0345 sec

6 0
3 years ago
Consider the equation 4 Fe+3 O2 → 2 Fe2O3 . In this equation, 3 O2 is a
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3O2 is a reactant in this equation
4 0
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What is an energy level and what particle occupies it
Snezhnost [94]

Hey there!

An energy level is the level of energy that the particle has.

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Hope this helps!

4 0
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What water has 97% of water
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