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sp2606 [1]
3 years ago
14

What force holds the lattice structure in place in a crystal?

Physics
2 answers:
Arada [10]3 years ago
4 0
At the end it depends on the type of crystal.

There are ionic crystals (like sodium chloride), covalent cristals (like diamond) and metallic crystals (like aluminum).

The context of the question may tell you if it is referred to one type of crystal or other.

I gues it may be about salt compounds, which are ionic crystals. In this case, the force that holds the lattice structure in place in a crystal is ionic (electrical attraction between cations and anions).

In the other two cases, the force is covalent bond in one case and metallic bond in the other case.
MAXImum [283]3 years ago
3 0

The attraction between ions of opposite charge.

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When you stop at a railroad crossing at night, instead of correctly perceiving two red lights that flash alternately you may per
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Starting from zero, an electric current is established in a circuit made of a battery of emf E, a resistor of resistance R and a
igor_vitrenko [27]

Answer:

time constant will decrease and steady state current will decrease on increasing the resistance

Explanation:

As we know that the EMF of cell is E which is used to connected across a resistor and an inductor.

So we will have

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here we know that

i = \frac{E}{R}(1 - e^{-Rt/L})

now here we have

\tau = \frac{L}{R}

so if we increase the value of resistance of the wire then the time constant will decrease

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also the steady state current will be smaller in that case

8 0
3 years ago
Which of the following statements correctly describe the various forms of EM radiation listed above?A) They have different wavel
Aleksandr [31]

Answer: A and B

Explanation:

Electromagnetic radiations are examples of electromagnetic waves with increasing frequency and decreasing wavelength in the following order radiowaves - infrared waves - visible lights - ultraviolet rays- x-rays - gamma rays.

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The statement above shows that EM radiations possesses different wavelengths and frequency.

5 0
3 years ago
In a carnival booth, you can win a stuffed giraffe if you toss a quarter into a small dish. the dish is on a shelf above the poi
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components of the speed of the coin is given as

v_x = v cos60

v_x = 6.4 cos60 = 3.2 m/s

v_y = vsin60

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now the time taken by the coin to reach the plate is given by

t = \frac{\delta x}{v_x}

t = \frac{2.1}{3.2}

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now in order to find the height

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h = 1.52 m

so it is placed at 1.52 m height

3 0
3 years ago
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