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lesantik [10]
4 years ago
15

The force needed to overcome kinetic energy friction is usually less than that needed to overcome static friction

Chemistry
1 answer:
Anestetic [448]4 years ago
6 0

the answer is true becuase The force needed to overcome static friction is usually less than that needed to overcome ______ friction

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Using the formula M=dx v, Calculate the mass of a liquid with a density of
valkas [14]

Answer:

<h3>The answer is 122.5 g</h3>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

<h3>mass = Density × volume</h3>

From the question

volume = 7 mL

density = 17.5 g/mL

We have

mass = 17.5 × 7

We have the final answer as

<h3>122.5 g</h3>

Hope this helps you

8 0
3 years ago
A lead ball is added to a graduated cylinder containing 41.7 ml of water, causing the level of the water to increase to 96.0 mL.
rjkz [21]

Answer:

Vlead ball=54.3 mL

Explanation:

The graduated cylinder contains 41.7mL of water

mL is a volume unit.

Water volume = 41.7 mL

The lead ball caused an increase of volume from 41.7 mL to 96.0 mL

The new volume is the lead ball volume plus the original water volume :

Final volume = Vlead ball+ Water original volume

96.0mL=Vleadball +41.7mL

Vlead ball=96.0mL-41.7mL

Vleadball=54.3mL

This is actually true if we suppose that the lead ball is fully sunken in the water.

We always must consider that the volume difference is the volume that the sunken object is occupying in the water.

5 0
3 years ago
In order to prepare a 0.523 m aqueous solution of potassium iodide, how many grams of potassium iodide must be added to 2.00kg o
Lerok [7]
M = amount of the solute  / mass of the <span>solvent

0.523 = x / 2.00 

x = 0.523 * 2.00

x = 1,046  moles

molar mass KI = </span><span>166.0028 g/mol
</span><span>
Mass = 1,046 * 166.0028

Mass </span>≈<span> 173.63 g

hope this helps!

</span>
6 0
4 years ago
Can anyone figure out the answer?
Scrat [10]
2.0 grams of mass which would make the dimand 
5 0
3 years ago
19 What is the "skin" of the cell?
Alborosie

Answer:

d cell membrane:)

Explanation:

5 0
3 years ago
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