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2 years ago

Which one of the following materials would provide the most electrical resistance?

Physics

1 answer:

Lena [83]2 years ago

7 0

Glass is the material that would provide the most electrical resistance.

Elements which are good conductors of electricity are referred to as

Metals. They usually have low resistance.

<h3> Examples of Metals</h3>

Copper wire

Aluminium

Non metals are are low conductors of electricity and have high resistance.

Electrolytes such as salt water are also good conductors of electricity.

Glass are generally regarded as Insulators and are poor conductors of

electricity which makes it the material with the most electrical resistance.

Read more about Resistance here brainly.com/question/17563681

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Find the torque required for the shaft to transmit 40 kW when (a) The shaft speed is 2500 rev/min. (b) The shaft speed is 250 re

Luba_88 [7]

Answer:

(a) 152.85 Nm

(b) 1528.5 Nm

Explanation:

According to the formula of power

P = τ ω

ω = 2 π f

(a) f = 2500 rpm = 2500 / 60 = 41.67 rps

So, 40 x 1000 = τ x 2 x 3.14 x 41.67

τ = 152.85 Nm

(b) f = 250 rpm = 250 / 60 = 4.167 rps

So, 40 x 1000 = τ x 2 x 3.14 x 4.167

τ = 1528.5 Nm

3 0

2 years ago

Which lobes of the brain receive the input that enables you to feel someone scratching your back? (2 points)

andrew-mc [135]

Answer: Parietal

Explanation: The parietal lobe is where the primary somatosensory cortex is located. This cortex is where all tactile stimulation is processed in the brain and allows to you detect/feel someone scratching your back.

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2 years ago

What is the average acceleration of a tennis ball that has an initial velocity of 6.0 m/s [E] and a final velocity of 7.3 m/s [W

Marizza181 [45]

Given :

The average acceleration of a tennis ball that has an initial velocity of 6.0 m/s.

and a final velocity of 7.3 m/s.

It is in contact with a tennis racket for 0.094 s

To Find :

The average acceleration of the tennis ball.

Solution :

We know, average acceleration is given by :

$a_{avg}=\dfrac{Final \ velocity-Initial\ velocity}{Time\ Taken}\\\\a_{avg}=\dfrac{7.3-6.0}{0.094}\ m/s^2\\\\a_{avg}=13.83\ m/s^2$

Therefore, average velocity is given by 13.83 m/s².

Hence, this is the required solution.

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2 years ago

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Sedbober [7]

<span>O + Na + Cl = NaClO

Reactants :

O -> </span><span>Oxygen
</span><span>
Na -> Sodium

Cl-> Chlorine

hope this helps!

</span>

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From this diagram which of the following can you conclude

Volgvan

Answer: A

Explanation:

I say opposites attract

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