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AveGali [126]
2 years ago
12

There are pros and cons to both e-readers and paper books. Do you think the pros outweigh the cons more for modern electronic re

aders, or for good old-fashioned paper books? Maybe it simply comes down to personal preferences as opposed to rational decision-making. Which do you prefer? Which do you think is better? Explain.
Physics
1 answer:
lyudmila [28]2 years ago
8 0

E-books have made it easier to carry books across long distances and have made learning  simpler.

<h3>E-books or paper books?</h3>

In the twenty first century, we have seen a sudden budding of technology  such as have never been. Part of this mordern technology is the introduction of electronic books in several formats such as pdf, epub etc.

These books can be read on computers, ipads, laptops, sart phone etc having the appropriate reader software. These ebooks unlike the paper books have eased the inconvienence associated with carrying  paper books which are often bulky from place to place.

Several ebooks could be housed at once in a  smartphone and carried in the pocket. This has made learning easier than ever. Thus, ebooks are better than paper books.

Learn more about ebooks: brainly.com/question/21690258

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Two forces F1 = -7.90i + 5.40j and F2 = 9.00i + 7.60j are acting on an object with a mass of m = 6.30 kg. The forces are measure
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Too much skepticism can
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3 years ago
a father and his son are racing down a mountain. if they're traveling at the same velocity who has more kinetic energy​
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3 years ago
A wire of length 6cm makes an angle of 20° with a 3 mT
Crazy boy [7]

Answer:

Approximately 7.3 \times 10^{-3}\; \rm A (approximately 7.3\; \rm mA) assuming that the magnetic field and the wire are both horizontal.

Explanation:

Let \theta denote the angle between the wire and the magnetic field.

Let B denote the magnitude of the magnetic field.

Let l denote the length of the wire.

Let I denote the current in this wire.

The magnetic force on the wire would be:

F = B \cdot l \cdot I \cdot \sin(\theta).

Because of the \sin(\theta) term, the magnetic force on the wire is maximized when the wire is perpendicular to the magnetic field (such that the angle between them is 90^\circ.)

In this question:

  • \theta = 20^\circ (or, equivalently, (\pi / 9) radians, if the calculator is in radian mode.)
  • B = 3\; \rm mT = 3 \times 10^{-3}\; \rm T.
  • l = 6\; \rm cm = 6 \times 10^{-2}\;\rm m.
  • F = 1.5\times 10^{-4}\; \rm N.

Rearrange the equation F = l \cdot I \cdot \sin(\theta) to find an expression for I, the current in this wire.

\begin{aligned} I &= \frac{F}{l \cdot \sin(\theta)} \\ &= \frac{3\times 10^{-3}\; \rm T}{6 \times 10^{-2}\; \rm m \times \sin \left(20^{\circ}\right)} \\ &\approx 7.3 \times 10^{-3}\; \rm A = 7.3 \; \rm mA\end{aligned}.

5 0
3 years ago
PLEASE HELP
Semenov [28]

Answer:

it take 687 days for Mars orbit around the sun

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2 years ago
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