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Sunny_sXe [5.5K]
3 years ago
5

As you may have experienced yourself, water alone will not remove oil from a dirty dish. Why does soap work to remove oil

Physics
2 answers:
bulgar [2K]3 years ago
7 0

Answer:

The combination of the two, water and soap, form bubbles that make a compound capable of removing the oil. The soap lifts the oil and dirt and becomes suspended in the water then we rinse off the soapy water and down goes the oil with it.

Explanation:

Alexandra [31]3 years ago
5 0

Answer:

Soap breaks up the oil into smaller drops, which can mix with the water. It works because soap is made up of molecules with two very different ends (one end of molecules are hydrophilic, so they love water; the other end of molecules is hydrophobic, so they hate water).

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1.D 2.A 3.A 4.im not sure please help 5.false One light bulb in a string of lights goes out. This causes all of the other lights
bezimeni [28]

4.Use Ohm’s Law to determine the resistance in a circuit if the voltage is 12.0 volts and the current is 4.0 amps.

A. 8.0 ohms B. 48 ohms C. 3.0 ohms D. 12 ohms

Ohm's law is V=IR, or I=V/R, or R=V/I. (I= current, V= voltage, R= resistance.) Let's plug in our variables: V=12.0, I=4.0, R=? into the equation R=V/I. 12.0/4.0=3.0, so the resistance is 3.0 ohms.

6 0
3 years ago
A projectile is launched with a velocity of 13.2m/s at an angle of 37 degrees above the horizontal. What is the horizontal compo
MrRissso [65]

Answer:

horizontal component = 10.54m/s

Explanation:

horizontal component = 13.2cos37°

horizontal component = 10.54m/s

8 0
3 years ago
The spectrum produced by a prism or a raindrop is evidence that the average speed of light in the material depends on the light'
Alja [10]
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4 0
3 years ago
Copper and aluminum are being considered for a high-voltage transmission line that must carry a current of 51.5 A. The resistanc
Sliva [168]

Answer:

a).Jcu= 436.44x10^{3} \frac{A}{m^{2}}

b).λcu=1.05728 \frac{kg}{m}

c).Jal= 274.66 x10^{3} \frac{A}{m^{2}}

d).λcu=0.487 \frac{kg}{m}

Explanation:

a).

ζcu=1.7x10^{-8}Ωm

ζal=2.76x10^{-8}Ωm

A=\frac{w}{R}

wcu=ζcu*l

Acu=\frac{1.7x10^{-8}*1000}{0.144} =1.18x10^{-4} m^{2}

J=\frac{I}{Acu}=\frac{51.5A}{1.18x10^{-4}m^{2}} \\J=436.44x10^{3} \frac{A}{m^{2}}

b).

mass per unit Copper

λcu=Dcu*Acu

λcu=8960 \frac{kg}{m^{3}}*1.18x10^{-4} m^{2}

λcu=1.05728 \frac{kg}{m}

c).

wal=ζal*l

Aal=\frac{2.7x10^{-8}*1000}{0.144} =0.187x10^{-3} m^{2}

J=\frac{I}{Aal}=\frac{51.5A}{0.187x10^{-3}m^{2}} \\J=274.66x10^{3} \frac{A}{m^{2}}

d).

mass per unit Aluminum

λal=Dal*Aal

λal=2600 \frac{kg}{m^{3}}*0.1875x10^{-3} m^{2}

λcu=0.487 \frac{kg}{m}

3 0
3 years ago
How far would a 6 kg ball move in 10 seconds if it is being pushed with a force of 100 N
Jet001 [13]
The ball would move about, 674 kilometers. I think I’m correct. Somebody correct me if I’m not.
3 0
3 years ago
Read 2 more answers
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