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3 years ago

12

An object at rest or moving at a constant speed in a straight path will continue to do so unless acted upon by an unbalanced for

ce

1 answer:

Furkat [3]3 years ago

5 0

I believe if your looking for true or false answer, that the answer is true

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If a rock has a mass of 0.15 kg on the moon what will its mass be on earth

Dafna11 [192]

The same mass dose not change but weight does

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4 years ago

Graphene based nanoelectronic devices will...a.Be slower, more power consuming than silicon and much thicker.b.Be faster, less p

nalin [4]

Answer:

.b.Be faster, less power consuming than silicon and much thinner

Explanation:

Graphene has a <em>very high electrical conductivity</em> due to its pi orbitals overlap that enhance the carbon to carbon bonds. This means that a nanoelectronic devise that uses graphene will be faster and will consume less powe and it will be thinner because graphenes have a <em>size of 0.345Nm.</em>

I hope you find this information useful and interesting! Good luck!

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4 years ago

What are carbon-12, carbon-13, and carbon-14?

denis23 [38]

Answer:

They are all Carbon isotopes. Carbon 13 has 6 protons and 7 neutrons

Explanation:

Hope this was helpful! :)

4 0

3 years ago

An AC adapter for a telephone-answering unit uses a transformer to reduce the line voltage of 120 V (rms) to a voltage of 9.0 V.

Illusion [34]

Answer:

1. The number of turns on the secondary output is 18

2. The root mean square power delivered to the transformer is 48 Watts.

Explanation:

A transformer is an electronic device that can be used for increasing or decreasing the value of a given voltage. It consists of primary coils and secondary coil of a definte number of turns. When voltage flows in the primary coil, it induces voltage in the secondary coil. The two types are: step-up and step down transformers.

1. For a given transformer,

$\frac{V_{s} }{V_{p} }$ = $\frac{N_{s} }{N_{p} }$

where $V_{s}$ is the value of the induced voltage in the secondary coil, $V_{p}$ is he voltage in the primary coil, and $N_{s}$ is the number of turns of the secondary coil, $N_{p}$ is the number of turns in the primary coil.

From the question,

$V_{s}$ = 9.0 V, $V_{p}$ = 120 V, $N_{p}$ = 240, $N_{s}$ = ?

So that,

$N_{s}$ = $\frac{V_{s}*N_{p} }{V_{p} }$

= $\frac{9 * 240}{120}$

= 18

The number of turns on the secondary output is 18.

2. $Power_{rms}$ = $I_{rms}$ × $V_{rms}$

= 0.4 × 120

= 48 W

The rms power delivered to the transformer is 48 Watts.

8 0

3 years ago

Mr. F has taken in a lot of fluid and put out very little. During this period his heart rate has increased a little and his bloo

mezya [45]

Answer:

D

Explanation:

What can be infer from Mr. F situation is that his body is raising blood pressure by both increasing blood volume with all this fluid intake and increasing heart rate. Something may be wrong with his blood volume.

4 0

3 years ago