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3 years ago

12

Quien me ayuda en una tarea de matemáticas de una figura geométrica que no se cómo se llama

2 answers:

Ilia_Sergeevich [38]3 years ago

3 0

Answer:

i dont know what you mean

Explanation:

Vaselesa [24]3 years ago

3 0

Cómo se mira la figura?

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Why do elements within a group have similar chemical properties

CaHeK987 [17]

Elements<span> in the same </span>group<span> in the periodic table </span>have similar chemical properties<span>. This is because their atoms </span>have<span> the same number of electrons in the highest occupied energy level. </span>Group<span> 1 </span>elements<span> are reactive metals called the alkali metals.</span>Group<span> 0 </span>elements<span> are unreactive non-metals called the noble gases.
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4 0

3 years ago

A sound wave has a speed of 345 m/s and a wavelength of 4.15 meters. What is the frequency of this wave?

Debora [2.8K]

Answer:

83 hertz

OPTION A

Explanation:

$wavelength = \frac{speed}{frequency}$

Given

wavelength=4.15m

speed=345 m/s

$frequency = \frac{speed}{wavelength} = \frac{345}{4.15}$

$frequency = 83 \: hertz$

I hope it helped you

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2 years ago

What holds the metal ions together in a lattice?

Anon25 [30]

Metallic bonds! Hope this helps!! :))

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2 years ago

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What gives the gem amethyst it's purplish color?

-Dominant- [34]

i think its iron...
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3 0

2 years ago

A voltmeter and an ammeter are used to respectively monitor the voltage across and the current through a resistor connected to a

dsp73

Answer:

(a) 95 volt

(b) 134.33 volt

(c) 10.746 volt

(d) Average delivered power is 722 watt

Explanation:

We have given value of resistance R = 12.5 ohm

Current in the ammeter i = 7.60 A

(a) Rms voltage in the resistor $V=iR=7.6\times 12.5=95volt$

(b) We know that rms voltage is given by $v_r=\frac{v_m}{\sqrt{2}}$

$v_m=\sqrt{2}v_r=1.414\times 95=134.33volt$

So peak voltage will be equal to 134.33 volt

(c) Maximum current is equal to $i_m=\sqrt{2}i_r=1.414\times 7.6=10.746A$

(d) Average power delivered in the resistor is equal to

P = VI

So $P=95\times 7.6=722watt$

7 0

3 years ago