Which is an example of a solution?

2 answers:

8 0

<span> of salt water, the solute is the salt. Solvent: this is the substance that makes up the majority of the </span>solution<span>. This is the part where the solute is dissolved. In our </span>example<span> of salt water, the solvent is water.</span>

expeople1 [14]3 years ago

5 0

Making a saline water solution by dissolving table salt (NaCl) in water. The salt is the solute and the water the solvent

"A solution is a homogeneous mixture of one substance dissolved in another"

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You are given a vector in the xy plane that has a magnitude of 84.0 units and a y-component of -67.0 units.

melomori [17]

Answer:

Explanation:

a)Magnitude = $\sqrt{(x1-y2)^{2} + (x1-x2)^{2} }$

84= $\sqrt{(0- (-67))^{2} + (x-0)^{2} }$

x= +50.67 or -50.67 units

b) We are given that the resultant is entirely in the -ve x direction which means that the y-component of the resultant is 0; It means that the y-component of the next vector = -ve of the y component of the initial vector i.e 67.

To make the magnitude 80 units in the negative x direction where the y component is 0, the x component must be -130.67(-50.67 - 80) as the x component is + 50.67units.

Magnitude = $\sqrt{(0- (67))^{2} + (-130.67)^{2} }$ = 146.85 units

c) The direction vector = 67/146.85 i - 130.67/146.85 j where i corresponds to the vector in y direction and j corresponds to the vector in x direction. Or this vector is at an angle of 180 - $Tan^{-1}(67/130.67)degrees$ i.e 152.85 degrees from the +ve x-axis.