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Thepotemich [5.8K]
3 years ago
13

Which of the following is not a compound A. Gold B. Water C. Salt D. Sugar

Physics
1 answer:
skelet666 [1.2K]3 years ago
6 0

Answer:

Gold

Explanation:

Water is H20

Salt is NaCl

Sugar is C12H22O11

Gold is Au with no other elements

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The head of a grass string trimmer has 100 g of cord wound in a light, cylindrical spool with inside diameter 3.00 cm and outsid
faust18 [17]

Answer:

a).11.546J

b).2.957kW

Explanation:

Using Inertia and tangential velocity

a).

w=2250*2\pi *\frac{1}{60}\\ w=235.61

I=\frac{1}{2}*m*((\frac{d_{i} }{2})^{2} +(\frac{d_{e} }{2})^{2})\\m=100g *\frac{ikg}{1000g}=0.1kg\\ d_{i}=3cm*\frac{1m}{100cm}=0.03m \\ d_{e}=18cm*\frac{1m}{100cm}=0.18m\\I=\frac{1}{2}*0.1kg*((\frac{0.03m}{2})^{2} +(\frac{0.18m}{2})^{2})\\I=0.41625x10^{-3}kg*m^{2}

Now using Inertia an w

E=\frac{1}{2}*I*(w)^{2} \\ E=\frac{1}{2}*0.416x10^{-3}*(235.61)^{2} \\E=11.54J

average power=\frac{11.4J}{0.230s}=50.2 W

b).

power=t*w

P=11.5465*0.25*235.61

P=2.957 kW

4 0
3 years ago
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Answer:

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5 0
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What causes water to move from the liquid part of the hyrdrosphere to the cyrosphere?
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Explanation:

Hope that helps

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aliina [53]

Answer:

b

Explanation:

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