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Law Incorporation [45]
3 years ago
7

Define fission and give an example of a reaction

Physics
2 answers:
erastova [34]3 years ago
6 0
<span>Definition: The action of dividing or splitting something into two or more parts.

Reaction Example: </span><span>Autotomy, sometimes termed transverse </span>fission<span>, is the name given to a process of unequal </span>fission<span> in which a portion of the body separates off with subsequent regeneration.</span><span>

</span>
Lemur [1.5K]3 years ago
4 0
It's a process in which a heavy nucleus is broken down into two or more lighter fragments...

it is used in nuclear reactors and atom bombs 
the opposite i.e when two or more lighter nuclei joins to give a heavy one is called Fusion , it is used in Hydrogen bombs

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Describe a vibration that is not periodic. NO LINKS PLEASE
Paraphin [41]

Answer:

1)The position change of almost any manually operated room light switch.

2) Sunlight striking a point on the ground on a partly cloudy and windy day

Explanation:

4 0
2 years ago
Recall from Chapter 1 that a watt is a unit of en- ergy per unit time, and one watt (W) is equal to one joule per second ( J·s–1
harkovskaia [24]

Answer:

Explanation:

The energy of a photon is given by the equation E_p=h f, where h is the <em>Planck constant</em> and f the frequency of the photon. Thus, N photons of frequency f will give an energy of E_N=N h f.

We also know that frequency and wavelength are related by f=\frac{c}{\lambda}, so we have E_N=\frac{N h c}{\lambda}, where c is the <em>speed of light</em>.

We will want the number of photons, so we can write

N=\frac{\lambda E_N}{h c}

We need to know then how much energy do we have to calculate N. The equation of power is P=E/t, so for the power we have and considering 1 second we can calculate the total energy, and then only consider the 4% of it which will produce light, or better said, the N photons, which means it will be E_N.

Putting this paragraph in equations:

E_N=(\frac{4}{100})E=0.04Pt=(0.04)(100W)(1s)=4J.

And then we can substitute everything in our equation for number of photons, in S.I. and getting the values of constants from tables:

N=\frac{\lambda E_N}{h c}=\frac{(520 \times10^{-9}m) (4J)}{(6.626\times10^{-34}Js) (299792458m/s)}=1.047 \times10^{19}

3 0
3 years ago
Once the genes are copied, where do they go?
Anna [14]

By copying their genomes, they retain the tool kit and at the same time generate a garage full of spare parts. Gene duplication can provide the raw material for expression changes to occur, and polyploidy itself can trigger epigenetic changes

5 0
2 years ago
Kinetic energy of an object is equal to
Gnom [1K]
See
K.E=1/2(mass*velocity²)
so option B is the correct answer.
Brainliest pls :-)
8 0
3 years ago
How does friction make it possible for you to walk across the floor?
Tema [17]

if we are walking on a perfectly smooth ground which has no friction our force would simply cancel out the force reverted by the ground and we would fall.

We need it to help push out feet off the ground

Hope those helps :)

5 0
3 years ago
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