PHYSICS HIGH SCHOOL

The process shown in this diagram contributed great amounts of heat to the young planet Earth and is best known as radioactive A) decay.
B) fission.
C) fusion.
D) isotope.

Answers

Answer 1
Answer: The process shown in this diagram contributed great amounts of heat to the young planet Earth and is best known as radioactive decay. Decay is known to release large amounts of heat.
Answer 2
Answer: Hey there

I believe the correct answer is (A) 

(A) = Decay 

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Lighting a match results in light and heat. Since energy was not created by the match, what transformation took place?

Answers

Chemical energy stored in the compounds caked on the head of the match, and later the
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Sandra's target heart rate zone is 135bpm—172bpm. Marissa's target heart rate zone is 143bpm—176bpm. They stop playing basketball and take their pulse, and both count the heart rate at 144bpm. If they decrease their heart rates by 20bpm, who will be in her THR zone?

Answers

Answer: Neither Sandra nor Marissa will be in her THR zone.


Explanation:


1) Actual pulse of both Sandra and Marissa : 144 bpm


2) Decrease of 20 bpm ⇒ 144 bpm - 20 bpm = 124 bpm


3) Sandra's TRH is in the range 135 - 172 bpm.


Since 124 < 135, she will be below the range.


4) Marissa's TRH range is 143 - 176 bpm.


Since, 124 < 143, she is below the range


In conlusion, neither Sandra nor Marissa will be in her THR zone.


Sandra's pulse is 144 bpm.  If she decreases it by 20 bpm,
it will be 124 bpm.  Her TRH is the range  of 135 - 172 bpm,
so she will be below it.

Marissa's pulse is 144 bpm.  If she decreases it by 20 bpm,
it will be 124 bpm.  Her TRH is the range  of 143 - 176 bpm,
so she will be below it.

Neither girl will be in her THR.

What are the 3 types of mediums that sound can travel through

Answers

solid,liquid, gas is the answer hope it helps enjoyyyyy
!!!!!!!!!!!!!!!

At what distance of separation, r, must two 3.20 x 10-9 Coulomb charges be positioned in order for the repulsive force between them to be 83.4 N?

Answers

F = q₁*q₂* C / r²

F =83.4
q₁ = q₂ = 3.2 * 10⁻⁹
C couloumb constant 8.9 * 10⁹

solve for r
I'm not 100% sure but I think the answer is 60.4, because you multiply 3.20 by 10, to get 32 - 9 = 23, then subtract 23 from 83.4. Hope this helps you, and good luck!!!

What is the most important consideration for environmental policy makers?

Answers

The most important consideration for environmental policy makers would be : environmental health
The basic purpose in creating environmental policy is maintaining the health of the population. the policies that created by the policy makers should be created to prevent any type of damage to population's well being

hope this helps

Answer:

Explanati

Humans impact the environment, which can, in turn, have an effect on human health. Pollution is caused by human activity, and it also affects human health. Air pollution can cause respiratory problems and water pollution can lead to digestive problems. As human health is affected by these issues, concern increases and policies are enacted that address the causes of the issues. These policies do benefit the environment, but are, in part, brought about by concerns over human health.

An atom of sodium-23 (atomic number = 11) has a positive charge of +1. Given this information, how manyelectrons does it have? How many protons and neutrons does this atom have?

Answers

An atom of sodium-23 (atomic number = 11) with a positive charge of +1  has total number of 10 electron and this atom has 11 protons and 12 neutron.

What is atom?

Protons, neutrons, and electrons make up an atom, with hydrogen being the sole exception since it lacks neutrons.

  • Every atom has a nucleus, which is surrounded by one or more electrons.
  • Protons and neutrons, together known as nucleons, normally make up the same number of the nucleus.
  • Neutrons are neutral, protons are positively charged, and electrons are negatively charged.

Given: An atom of sodium-23 (atomic number = 11) has a positive charge of +1.

So, total number of electrons it have = 11 -1 = 10.

total number of proton it have = 11.

total number of neutron it have = 23 -11 = 12.

Learn more about atom here:

brainly.com/question/13654549

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It has a 10 electrons. Since it's atomic number is 11 it must have 11 protons. Also, given that it has a +1 charge, it has one less electron than protons since they have equal but opposite charges. The number of protons is the mass number minus the atomic number = 23-11= 12 neutrons.
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