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Aneli [31]
3 years ago
11

In what state must matter exist for fusion reactions to take place

Physics
1 answer:
steposvetlana [31]3 years ago
8 0

Answer:

Plasma

Explanation:

For a fusion reaction to take place, there must be conditions in which the particles have extreme thermal kinetic energies, in this way the collisions that cause the nuclear fusion are generated. Therefore, it is necessary to reach very high temperatures, in which the state of matter will necessarily be plasma.

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mel-nik [20]
This doesn’t make any sense
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2 years ago
3. One atom of silicon can properly be combined in a compound with A. One atom of chlorine. B. Three atoms of hydrogen. C. Two a
Paraphin [41]

C :<em>2 atoms of Oxygen can probably join 1 Silicon Atom</em>

4 0
3 years ago
Object is dropped from the top of a building that is 1125 m tall at the point when it’s speed is 30 m/s how far has it fallen
FrozenT [24]

-- Gravity makes a falling object fall 9.8 m/s faster every second.

-- So, it reaches the speed of 30 m/s in (30/9.8) = 3.06 seconds after it's dropped.

-- The distance an object falls from rest is D = 1/2 (acceleration) (time)²

D = 1/2 (9.8 m/s²) (3.06 sec)²

D = (4.9 m/s²) (9.37 sec²)

<em>D = 45.8 meters</em>

Notice that we don't care how high the building is.  The problem works just as long as the object can reach 30 m/s before it hits the ground.  That  turns out to be anything higher than 45.8 meters for the drop . . . maybe something like 13 floors or more.

Now I'll go a little farther for you !  Writing the last paragraph made me a little curious and uncomfortable.  So I went and looked up the world's tallest buildings . . . and I found out that this problem could never happen !

The tallest building in the world now is the Burj Khalifa, in  Dubai.  It has 163 floors, and it's 828 meters high !  That's 2,717 feet.  It's gonna be a long time before there's a building that's 1125 meters tall, like this problem says.  That's close to 3700 feet . . . I've had flying lessons where I wasn't that far off the ground !

4 0
3 years ago
As the masses of two objects increase, how does the gravitational force between the two bodies change?
Sav [38]

Answer

The strength of the gravitational force between two objects depends on two factors, mass and distance. the force of gravity the masses exert on each other. If one of the masses is doubled, the force of gravity between the objects is doubled. increases, the force of gravity decreases.

plz make brainlyist and rate 5 star

7 0
3 years ago
Read 2 more answers
You are using a Geiger counter to measure the activity of a radioactive substance over the course of several minutes. If the rea
KonstantinChe [14]

Answer : The half-life of this substance will be, 45 minutes.

Explanation :

First we have to calculate the value of rate constant.

Expression for rate law for first order kinetics is given by:

k=\frac{2.303}{t}\log\frac{a}{a-x}

where,

k = rate constant  = ?

t = time passed by the sample  = 90.3 min

a = initial amount of the reactant = 400

a - x = amount left after decay process = 100

Now put all the given values in above equation, we get

k=\frac{2.303}{90.3min}\log\frac{400}{100}

k=1.54\times 10^{-2}\text{ min}^{-1}

Now we have to calculate the half-life of substance, we use the formula :

k=\frac{0.693}{t_{1/2}}

1.54\times 10^{-2}\text{ min}^{-1}=\frac{0.693}{t_{1/2}}

t_{1/2}=45min

Therefore, the half-life of this substance will be, 45 minutes.

4 0
3 years ago
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