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igomit [66]
3 years ago
15

vinegar (acetic acid) in a solution will react with chalk (calcium carbonate) a solid. the rate of the reaction can be determine

d by how quickly carbon dioxide, one of the products, is produced. which solution of acetic acid will produce the highest reaction rate?
Physics
1 answer:
nirvana33 [79]3 years ago
3 0

Answer:

The more concentrated the solution of acetic acid, the highest the reaction rate. Thus, 12M acetic acid will react faster than 5M acetic acid. The more the amount of acetic acid solution, the highest the reaction rate. Increasing the temperature of acetic acid solution also increases the rate of reaction between acetic acid and calcium carbonate. 

Explanation:

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A car comes to a bridge during a storm and finds the bridge washed out. The driver must get to the other side, so he decides to
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Answer:

The answer is below

Explanation:

a) The vertical displacement = Δy = 21.5 m - 1.5 m = 20 m

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Using the formula:

\Delta y = u_yt+ \frac{1}{2}a_yt^2\\ \\u_y=initial\ velocity\ of \ car\ in\ y\ direction = 0,a_y=g=acceleration\ due\ to\ gravity\\=10m/s^2\\\\\Delta y =  \frac{1}{2}a_yt^2\\\\\Delta y=\frac{1}{2}a_yt^2\\\\t=\sqrt{\frac{2\Delta y}{a_y} }=\sqrt{\frac{2*20}{10} }  =2\ m/s

Also:

\Delta x = u_xt+ \frac{1}{2}a_xt^2\\ \\u_x=initial\ velocity\ of \ car\ in\ x\ direction = 0,a_x=acceleration=0\\\\\Delta x =  u_xt\\\\u_x=\frac{\Delta x}{t}=\frac{69}{2} =34.5\ m/s

b)The car is moving at a constant speed in the horizontal direction, hence the initial velocity = final velocity

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4 0
4 years ago
an object is acted upon by a force of 22 Newtons to the right and 13 Newtons to the left what is the magnitude and direction of
frosja888 [35]

22N to the right and 13N to the left

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