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3 years ago

Name the component that changes its resistance as the temperature changes.

Mathematics

2 answers:

babymother [125]3 years ago

7 0

Answer:

Thermistor

Step-by-step explanation:

tia_tia [17]3 years ago

6 0

Answer:

thermistor

Step-by-step explanation:

it is a special typeof variable resistive element that changes its physical resistance when exposed to changes in temperature.

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(a^2-b)^3

Ganezh [65]

-1 is correct answer because
a= -2
b= 5 then
(-2^2-5)^3
(4-5)^3
(-1)^3
-1

7 0

3 years ago

The areas of the two watch faces have a ratio of 16:25 What is the ratio of the radius of the smaller watch face to the radius o

Leona [35]

Answer:

The ratio of the radius of the smaller watch face to the radius of the larger watch face is 4:5.

Step-by-step explanation:

Let the Area of smaller watch face be $A_1$

Also Let the Area of Larger watch face be $A_2$

Also Let the radius of smaller watch face be $r_1$

Also Let the radius of Larger watch face be $r_2$

Now given:

$\frac{A_1}{A_2} =\frac{16}{25}$

We need to find the ratio of the radius of the smaller watch face to the radius of the larger watch face.

Solution:

Since the watch face is in circular form.

Then we can say that;

Area of the circle is equal 'π' times square of the radius 'r'.

framing in equation form we get;

$A_1 = \pi {r_1}^2$

$A_2 = \pi {r_2}^2$

So we get;

$\frac{A_1}{A_2}= \frac{\pi {r_1}^2}{\pi {r_2}^2}$

Substituting the value we get;

$\frac{16}{25}= \frac{\pi {r_1}^2}{\pi {r_2}^2}$

Now 'π' from numerator and denominator gets cancelled.

$\frac{16}{25}= \frac{{r_1}^2}{{r_2}^2}$

Now Taking square roots on both side we get;

$\sqrt{\frac{16}{25}}= \sqrt{\frac{{r_1}^2}{{r_2}^2}}\\\\\frac{4}{5}= \frac{r_1}{r_2}$

Hence the ratio of the radius of the smaller watch face to the radius of the larger watch face is 4:5.

7 0

3 years ago

F(x)=x^2 reflected over x=2

klasskru [66]

Answer:

please rate

Step-by-step explanation:

To reflect a graph, f(x) over the x-axis, you take -f(x). So if f(x)=x^2, then -f(x) is -x^2. Then g(x)=-x^2 is the reflection of your function f(x) over the x-axis.

3 0

2 years ago

Read 2 more answers

How do I solve this

Pani-rosa [81]

Answer: you alredy solved it

Step-by-step explanation:

4 0

3 years ago

Please Help Me with this one too

Angelina_Jolie [31]

Answer:

The second one

Step-by-step explanation:

0.5 times 5 is 2.5

2.5 plus 14 is 16.5

0.5 times 10 is 5

5 plus 14 is 19

And so on

8 0

3 years ago

Name the component that changes its resistance as the temperature changes.​

Name the component that changes its resistance as the temperature changes.