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Artyom0805 [142]
3 years ago
11

What is the half life of Strontium-90? Explain your answer

Physics
2 answers:
nadezda [96]3 years ago
7 0
Hey there, 

Question: "<span>What is the half life of Strontium-90? Explain your answer"

Answer: </span>28.8 years / <span>Strontium-90 has 52 neutrons and 38 protons. </span>
topjm [15]3 years ago
4 0
Hey there,

Based on my research and understanding of this question, your correct answer would be " 28.8 years / <span>Strontium-90 has 52 neutrons and 38 protons. ".

Hope this helps.

~Jurgen</span>
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What percent of sample of AS-198 to decay to 1/8 its original
denis-greek [22]

Answer:

bannana

Explanation:

5 0
3 years ago
Predict which molecule will show a similar relationship between its heat of fusion and its heat vaporization that water does
BaLLatris [955]

Question:

A) C6H6

B) CH3CH2CH2CH2CH2COH6

C) NaCl

D) NH3

Answer:

The correct option is;

A) C₆H₆

Explanation:

Heat of fusion = 6.02 kJ/mol

Heat of vaporization =40.8 kJ/mol

Here, we analyze each of the options as follows

A) C₆H₆

Benzene has a melting point of 5.5° C and a boiling point of

80.1 ° C similar to water

Heat of fusion = 9.92 kJ/mol

Heat of vaporization =30.8kJ/mol

B) CH₃CH₂CH₂CH₂CH₂COH₆

The above compound is more likely solid

C) NaCl solid

D) NH₃ melting point = -77.73 °C boiling point =  -33.34 °C

Of the above, the compounds the one  that closely resembles water is C₆H₆

8 0
3 years ago
Read 2 more answers
Solve for A if F=MA and F=100 and M=25?
inn [45]

Answer:

<h3>\boxed{ \boxed{ \bold{A = 4}}}</h3>

Explanation:

Given,

F = 100 , M = 25

Now, let's find the value of A

\sf{F = MA}

plug the values

⇒\sf{100 = 25 A}

Swap the sides of the equation

⇒\sf{25A = 100}

Divide both sides of the equation by 25

⇒\sf{ \frac{25A}{25}  =  \frac{100}{25} }

Calculate

⇒\sf{A = 4}

Hope I helped!

Best regards!!

5 0
3 years ago
Read 2 more answers
All of the follow are ways of measuring volume execpt:
bogdanovich [222]
A). Scale.
You CAN measure volume with all the following except a scale.
6 0
3 years ago
(ik it says physics but astronomy is a field of physics sooo) A recently discovered planet in a different solar system is locate
marusya05 [52]

The distance, to the nearest tenth, is 314.9 light-years.

<em>The given data is:</em>

A recently discovered planet is located 1.85*10^5 miles from Earth.

Now we want to transform this distance to light-years.

Remember that a light-year is defined as "the distance that the light would travel in one year".

using the relation:

distance = speed*time

The speed of light is:

speed = 6.706*10^8 mi/h

And in one year has 8760 hours, then we have:

time = 8760 h

replacing these in the equation we get:

distance = speed*time

distance = (6.706*10^8 mi/h)*(8760 h)  = 5,874,456,000,000 miles

Son one light-year is equivalent to 5,874,456,000,000 miles

1 light-year = 5,874,456,000,000 miles

So to transform a distance in miles to light-years, we just need to divide that distance by 5,874,456,000,000 miles:

The distance between the new planet and Earth was:

D = 1.85*10^15 mi = ( 1.85*10^15)/(5,874,456,000,000) = 314.9 light-years.

if you want to learn more about this, you can read:

brainly.com/question/1302132

3 0
3 years ago
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