3 years ago

Match these items and the phrases with which they are associated.

1 answer:

4 0

Amount of matter in object is mass.density is mass/volume.h2o is water.drew first picture of atom is Neil's Bohr.l* w* h is volume.basic unit of matter is atom.mixture is concrete.n=1 is inner shell.upward force of a liquid on an object is buoyancy.

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For a certain RLC circuit the maximum generator EMF is 125 V and the maximum current is 3.20 A. If le a) the impedance of the ci

MAXImum [283]

Answer:

Part (i)

Z = 39.06 ohm

Part (ii)

R = 21.7 ohm

Explanation:

a) here we know that

maximum value of EMF = 125 V

maximum value of current = 3.20 A

now by ohm's law we can find the impedence as

$z = \frac{V_o}{i_o}$

now we will have

$z = \frac{125}{3.20} = 39.06 ohm$

Part b)

Now we also know that

$\frac{R}{z} = cos\theta$

$\theta = 0.982 rad = 56.3 degree$

now we have

$\frac{R}{39.06} = cos56.3$

$R = 21.7 ohm$

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3 years ago

Rosa listed some advantages and disadvantages of using renewable resources. Which best describes Rosa’s error?

Vlada [557]

One disadvantage with renewable energy is that it is difficult to generate the quantities of electricity that are as large as those produced by traditional fossil fuel generators

One advantage with renewable energy is that as it is renewable it is therefore sustainable and so will never run out.

I dont know who you are referring to as "rosa" i hope this helps

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3 years ago

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What happens when a wave encounters a boundary and then goes back to the original medium?

lawyer [7]

It causes a movement of convection in the water resulting in a pulling current.

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3 years ago

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hammer [34]

Answer: I think the answer is Non-foliated if it is wrong i am so sorry

don't forget to drop a heart.