Answer:
W= 38.4 J
Explanation:
Given that
m = 80 g= 0.08 kg
Initial speed ,u= 22 m/s
Final speed ,v= 38 m/s
The change in the kinetic energy of the particle
ΔKE= 38.4 J
We know that
Work done by all the forces =Change in the kinetic energy
That is why net work done = 38.4 J.
W= 38.4 J
Therefore the answer will be 38.4 J.
Explanation:
Ultraviolet is a form of electromagnetic radiation with wavelength from 10 nm to 400 nm, shorter than that of visible light, but longer than X-rays. UV radiation is present in sunlight, and constitutes about 10% of the total electromagnetic radiation output from the Sun.
Answer:
A lightning flash is at least 270,000 mph (434,523 kph)!
Explanation:
Have a great summer :)
The particles released during alpha decay are called alpha particles. Alpha particles have greater mass and charge than other emitted particles.
- Radioactive emissions are the transfer of energy through the flow of particles or waves in a medium
- There are 3 types of radioactive emissions which are alpha, beta and gamma
- In alpha radiation, the nucleus emits an alpha particle which is equivalent to a helium nucleus
- In beta radiation, an electron is emitted to convert a neutron to a proton
- In gamma radiation, the nucleus just loses energy
Since alpha particles have more mass and charge, they are more ionising and lose more energy at a faster rate and can be blocked easily.
Learn more about alpha decay emissions here:
brainly.com/question/2600896
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