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scoray [572]
4 years ago
9

Nichrome is used as heating element in heater.Why?​

Physics
1 answer:
Masja [62]4 years ago
7 0

Nichrome is a mixture of nickel and chromium. Nichrome Wire is highly resistant to the flow of electricity . This resistance causes an increase in generated heat . It also has the ability to be heated many times without being destroyed. It is is a mixture of nickel and chromium.This heat is powerful enough to heat the water without damaging the wire.

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What information did geologist use to divide earths history into intervals?
dangina [55]
Below are the choices that can be found from other sources:

A. change in climate 
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<span>C changes in the fossil record </span>
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The answer is <span>C. changes in the fossil record

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Why are the shoes soles of fat people get worn out faster than those of thin people?
Leya [2.2K]
Less weight is why fat peoples souls wear out faster.
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A student is asked to design an experiment to determine the change in angular momentum of a disk that rotates about its center a
Andreas93 [3]

Answer:

<em>A. The magnitude of the net force exerted on the disk </em>

<em>B. The distance between the center of the disk and where the net force is applied to the disk</em>

<em></em>

Explanation:

To determine the change in angular momentum of the disk after a stipulated time, one must measure the above options.

<em>The radius of the disk is fixed and does not vary with the experiment, and the mass of the disk is also constant and known.</em>

<em>One must first measure the magnitude of the net force exerted on the disk</em>, and determine the torque as a result of this torque from the distance between the center of the disk and the point where the net force is applied.  The above statement also points out <em>the necessity of measuring the distance between the center of the disk and the point where the net force is applied on the disk, as both the torque, and the moment of inertia is calculated from this point</em>.

torque T = Force time distance of point of action of force from mid point of the disk

T = F X r

T x t = Δ(Iω)

Where t is the time,

and Δ(Iω) is change in angular momentum.

7 0
3 years ago
What happens when a charged insulator is placed near an uncharged metallic object?
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5 0
3 years ago
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A 51.0-kg woman wearing high-heeled shoes is invited into a home in which the kitchen has vinyl floor covering. The heel on each
chubhunter [2.5K]

Answer:

Pressure = 9.94 x 10⁶ Pascals

Explanation:

given data

mass = 51 kg

radius = 0.400 cm

solution

we know Pressure that is express as here

Pressure = total force on an area ÷ the area of the area   .................1

and

Force is the woman's weight so weight will be

Weight = mass × gravity  .................2

put here value

Weight = 51 × 9.8 m/s²

Weight = 499.8 Newtons

and

Area of a circle of bottom of the heel = (π) × (radius)²    ...................3

put here value

Area = (π) × (0.40 cm)²

Area = 0.502654 cm²

Area = 0.0000502654 m²

and

now we put value in equation 1 we get

Pressure = force ÷ area

Pressure = 499.8 ÷ 0.0000502654

Pressure = 9943221.381 N/m²

Pressure = 9.94 x 10⁶ Pascals

6 0
3 years ago
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