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valentinak56 [21]
3 years ago
8

You can identify a pure substance if you know it's ?

Physics
2 answers:
PIT_PIT [208]3 years ago
8 0
If you know the physical properties
Vika [28.1K]3 years ago
7 0
If you know it's physical properties
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How many amps are there in the current of a circuit if the voltage source is 140v and the resistance is 2 ohms?
VLD [36.1K]
Voltage (V)= Current (I) * Resistance (R)
I=V/R=140/2=70A

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A silver bar 0.125 meter long is subjected to a temperature change from 200°C to 100°C. What will be the length of the bar after
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\Delta L=  \alpha L_0 (T_f-T_i)

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3 years ago
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What is the length of the color attribute?
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The length of the colour attribute is 6 characters.

<h3>What is a colour attribute?</h3>

Each colour has a distinct look based on three essential characteristics: hue, chroma (saturation), and value (lightness). It's critical to use all three of these properties when describing colour to appropriately identify it and distinguish it from others.

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6 0
1 year ago
PLSSSS HELPPPP PLSSSS 25 POINTS PLS I REALLY NEED THIS AND GET THEM RIGHT SO PLS DONT ANSWER IF U DONT KNOW
denis23 [38]

Answer:

1- C   2-B    3-B   - these are ur best answers

Explanation:

4 0
3 years ago
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The propeller of a World War II fighter plane is 2.30 m in diameter. (a) What is its angular velocity in radians per second if i
Sergio [31]

Answer with Explanation:

We are given that

Diameter of fighter plane=2.3 m

Radius=r=\frac{d}{2}=\frac{2.3}{2}=1.15 m

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Frequency=\frac{1200}{60}=20 Hz

1 minute=60 seconds

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b.We have to find the linear speed of its tip at this  angular velocity if the plane is stationary on the tarmac.

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