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Alex787 [66]
3 years ago
12

Your town is at sea level, and it is a comfortable room-

Chemistry
1 answer:
avanturin [10]3 years ago
5 0

Answer:

68.6 m

Explanation:

Speed is defined as distance covered per unit time and expressed as

S=d/t

Where d is distance and t is speed.

Making d the subject of the above formula then

d=st

Substituting 343 m/s dor s and 0.200 s for s then

d=343*0.2=68.6 m

Therefore, the distance is 68.6 m

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How does water change the shape of Earth's surface?
xz_007 [3.2K]

Answer:

Water moving across the earth in streams and rivers pushes along soil and breaks down pieces of rock in a process called erosion. The moving water carries away rock and soil from some areas and deposits them in other areas, creating new landforms or changing the course of a stream or river.

Explanation:

5 0
3 years ago
Read 2 more answers
Calcium ions are removed from the sarcoplasm of the cardiac cell by the action of the sarcoplasmic reticulum (SR) Ca2+-ATPase pu
Ivan

Answer:

Sodium-calcium exchanger on the sarcolemma

Explanation:

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7 0
4 years ago
The mass of an erlenmeyer flask is 85.135 g. after 10.00 ml of water is added to the flask, the mass of the flask and the water
BARSIC [14]
Subtracting the mass of (flask+water) from the empty flask gives:
95.023 g - 85.135 g = 9.888 grams of water
Dividing this by the given volume of 10.00 mL water gives:
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Therefore, based on this sample, the density of water is 0.9888 g/mL, which is close to the usually accepted approximation of 1 g/mL.
4 0
3 years ago
What parts are present in every chemical equation?
77julia77 [94]
I believe it’s

The reactants

The products

And the Arrow indicating the direction of the chemical reaction
3 0
3 years ago
Briefly explain the observed effect of the acetylcholine concentration on the rate of the enzyme-catalyzed reaction
Goryan [66]
<h2>Increase of reaction rate</h2>

Explanation:

  • It is observed that when the concentration of acetylcholine remains constant in the reaction of an aqueous solution, the speed of the enzyme-catalyzed reaction or the formation of the product increases with increasing concentrations of substrate.
  • The reaction rate is directly proportional to the concentration of acetylcholine.  
  • At very low concentrations of acetylcholine, there is a small increase in the concentration of the substrate which results in a large increase of the rate in reaction.
4 0
4 years ago
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