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bazaltina [42]
3 years ago
9

hhTwo cups of the same size are filled to the brim with clear liquids. Cup A holds water. Cup B contains alcohol. Your teacher c

hallenges you to figure out which cup holds water. Because of your great science knowledge, you know that all substances have their own special properties. You and your lab partner add an ice cube to each cube. The ice floats in one liquid. You predict it is water. And the ice sinks in the other liquid. You predict that liquid is alcohol. What property of matter did you use to identify the liquids?
Physics
2 answers:
PSYCHO15rus [73]3 years ago
6 0

Answer:density

Explanation:i did this on the usa test prep

Taya2010 [7]3 years ago
4 0
You used density, because water/ice has a density of 1, and ice will sink in anything with a lesser density 
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AlexFokin [52]

Answer:

The magnetic flux through the desk surface is 6.6\times10^{-4}\ T-m^2.

Explanation:

Given that,

Magnetic field B = 0.42 T

Angle =68°

We need to calculate the magnetic flux

\phi=BA\costheta

Where, B = magnetic field

A = area

Put the value into the formula

\phi=0.42\times10^{-3}\times1.7\times1.0\cos22^{\circ}

\phi=0.42\times10^{-3}\times1.7\times1.0\times0.927

\phi=6.6\times10^{-4}\ T-m^2

Hence, The magnetic flux through the desk surface is 6.6\times10^{-4}\ T-m^2.

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3 years ago
Consider two particles A and B. The angular position of particle A, with constant angular acceleration, depends on time accordin
Vera_Pavlovna [14]

Answer:

θ = θ₀ + ½ w₀ (t -t_1) + α (t -t_1)²

Explanation:

This is an angular kinematic exercise the equation for the angular position

the particle A

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They say for the particle B

     w₀B = ½ w₀

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In addition, the particle begins at a time t_1 after particle A, in order to use the same timer, we must subtract this time from the initial

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l

et's write the equation of particle B

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replace

     θ = θ₀ + ½ w₀ (t -t_1) + ½ 2α (t -t_1)²

     θ = θ₀ + ½ w₀ (t -t_1) + α (t -t_1)²

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Answer:

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