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Kisachek [45]
3 years ago
5

Deanna stirred a teaspoon of sugar into a glass of warm water. The sugar completely dissolved in the water. Select 3 statements

below that are TRUE about the dissolved sugar.
A) The sugar chemically combines with the water to form a new substance
B) The sugar can be separated from the water
C) The sugar molecules are spread out amongst the water molecules
D) The sugar turns into water molecules
E) The sugar melts
F) The sugar and water form a mixture
G) The sugar loses mass
H) The sugar breaks down into the individual atoms that make up sugar
I) The sugar disappears and no longer exists


Please don't give me links for the answers or random words bc i will report u and u will lose points!
Physics
1 answer:
larisa [96]3 years ago
8 0

Answer:

B, C, F

Explanation:

B: Sugar can be separated from the water by evaporating the water. This will leave large chunks of sugar.

C: Sugar gets spread out among the water.

F: Sugar water is a homogeneous <u>mixture. </u>Can't see the individual components because of the dissolving.

Hoped this helped! :)

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Hans Langseth's beard measured 5.33 m in 1927. Consider two charges, q1 = 2.42 nC and an unspecified charge, q2, are separated 5
schepotkina [342]

Answer:

-7.89 * 10^(-9) C

Explanation:

Parameters given:

q1 = 2.42 nC = 2.42 * 10^(-9) C

Distance between q1 and q2 = 5.33 m

q3 = 1.0 nC = 1 * 10^(-9) C

Distance between q1 and q3 = 1.9 m

Distance between q2 and q3 = 5.33 - 1.9 = 3.43 m

The net force acting on q3 is:

F = F(q1, q3) + F(q2, q3)

F = (k*q1*q3)/1.9² + (k*q2*q3)/3.43²

F = (9 * 10^(9) * 2.42 * 10^(-9) * 1 * 10^(-9))/3.61 + (9 * 10^(9) * q2 * 1 * 10^(-9))/11.7649

F = 6.033 * 10^(-9) + 0.765*q2

If the net force is zero:

0 = 6.033 * 10^(-9) + 0.765*q2

-0.765*q2 = 6.033 * 10^(-9)

=> q2 = -[6.033 * 10^(-9)]/0.765

q2 = -7.89 * 10^(-9) C

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M- Making a move? Let's start it now.
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