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3 years ago

The purpose of technology is to solve problems and meet needs. True False

Physics

1 answer:

BARSIC [14]3 years ago

4 0

The above given sentence is true reason being the use of Technology.

Explanation:

The basic purpose double technology is to make hard work easier and help in meeting the needs. Technology was being developed and is being upgraded so as to make some of the tasks, which were harder to do without it, easier.

Development of Technology has made the work easier and the needs are being met with an additional profit of saving time.

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The small currents in axons corresponding to nerve impulses produce measurable magnetic fields. a typical axon carries a peak cu

Gemiola [76]

Answer:

$6.66\cdot 10^{-12}T$

Explanation:

The magnetic field produced by a current-carrying wire is given by

$B=\frac{\mu_0 I}{2\pi r}$

where

$\mu_0$ is the vacuum permeability

I is the current

r is the distance from the wire

In this problem we have

$I=0.040 \mu A=4\cdot 10^{-8}A$

r = 1.2 mm = 0.0012 m

So the magnetic field strength is

$B=\frac{(4\pi \cdot 10^{-7} H/m)(4\cdot 10^{-8}A)}{2\pi (0.0012 m)}=6.66\cdot 10^{-12}T$

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3 years ago

How are parentheses used in chemical formulas

Zarrin [17]

it is meant to distinguish the number of polyatomic ions from the number of atoms in a given polyatomic ion. an example is Ca(NO3)2

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3 years ago

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A uniform linear charge of 2.0 nC/m is distributed along the x axis from x = 0 to x = 3 m. What is the x component of the electr

balu736 [363]

Answer:

The x component of the electric field at y=2m is $E_{x}=17.97\frac{N}{C}$

Explanation:

For a linear charge, using Gauss Law, we get that the Electric field (radial) has the following form

$E=\frac{\lambda}{2\pi\epsilon_{0}r}$

where λ is the charge for longitud unit given in the problem, r is replaced by the y coordinate, and there are two known more data. So

$E=\frac{2*10x^{-9}}{2*2\pi\epsilon_{0}}=17.97\frac{N}{C}$

is the x component of the Electric field at y=2m on the y axis, which is what we wanted to know.

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What is the relationship between electric currents and magnetic fields?

Aleksandr [31]

The electric currents induces a magnetic field. They changing magnetic field can be induce an electric current.

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During the 1840s, Americans used the idea of Manifest Destiny to justify the...

Natali [406]

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2 years ago

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