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3 years ago

_______ or radioactive substance have a half life.

Physics

1 answer:

madam [21]3 years ago

4 0

Answer:

A radioactive element or radioactive substance have a half life

Explanation:

The half life of a radioactive element is defined as the time taken for the atoms of the radioactive elements to decay to half the original number

Radioactive decay

Radioactive decay simply the process by which the nucleus of a heavy radioactive element disintegrates and emits alpha or beta particles along with Gama rays

Law of radioactivity

The law states that when a radio active element decays or disintegrates it forms a new element two places below in the periodic table with emission of alpha particles or two places above the element in the periodic table with emission of beta particle.

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A coil of standard annealed copper having a resistance of 50 ohms at 15° is embedded in the core of a large transformer after th

iren [92.7K]

The temperature of the transformer after the transformer has been in operation for several hours at the given resistance is 21.2 degrees Celsius.

<h3>Relationship between resistance and temperature</h3>

The relationship between resistance and temperature is given as;

R = R₀( 1 + αΔθ)

From the first resistance, we will have the following equation,

R₁ = R₀( 1 + αΔθ)

50 = R₀(1 + 15α) ------ (1)

From the second resistance, we will have the following equation,

58 = R₀(1 + αT) ------ (2)

Divide (1) by (2)

$\frac{50}{58} = \frac{R_0(1 + 15\alpha)}{R_0(1 + T\alpha)} \\\\\frac{50}{58} = \frac{(1 + 15\alpha)}{(1 + T\alpha)} \\\\50(1 + T\alpha) = 58(1 + 15\alpha)\\\\50 + 50T\alpha = 58 + 870\alpha \\\\50(0.0425)T = (58- 50) + 870(0.0425)\\\\2.125T = 44.975\\\\T = 21.2\ ^0C$

Thus, the temperature of the transformer after the transformer has been in operation for several hours at the given resistance is 21.2 degrees Celsius.

Learn more about resistance and temperature here: brainly.com/question/2735534

8 0

2 years ago

How much heat is released when 6.00 grams of ammonia and 5.00 grams of oxygen?

snow_tiger [21]

11 grams were released.think it help

7 0

3 years ago

What are 5 movements/skills that you are able to do because of your muscles?

Gnesinka [82]

One movement is walking. A skill we use is writing. Another movement is blinking. Another skill we use with muscles is typing. And finally, another skill we use muscles during is brushing your teeth.

7 0

3 years ago

Please Help Meee

g100num [7]

Answer:

answer is 24 ohm okkkkkm

4 0

3 years ago

The pressure of a liquid is given by P = pgh. Calculate the pressure (in SI unit) if the

BlackZzzverrR [31]

Answer:

5000 Pa

Explanation:

First collect the data you've been given already and make sure to convert into the right units;

Density = 1 g/cm³ ...... 1000 Kg/ m³

acceleration due to gravity = 10 m/s²

Height = 50 cm......0.5 m

after collecting the data, use the formula to solve

pressure = pgh

 = 1000 × 10 × 0.5

 = 5000 Pa

hope this helps

6 0

3 years ago