Answer:
A. When it is in a magnetic field, it becomes a temporary magnet.
Explanation:
An iron bolt is attracted to a magnet because when in a magnetic field, the iron becomes a temporary magnet.
This is because the iron aligns their electrons in the magnetic fields.
- This causes that attraction between the magnet and the iron.
- Metals like iron are said to be ferromagnetic
- Unpaired electrons in iron spin in such a way that they align with the magnetic fields of the magnet.
1. Developing renewable energy technology
- Efficient energy storage and smarter grids .
- renewable and rechargeable batteries and fuel cell
2. Saving endangered wildlife
-smart collars for endangered species and reducing human - animal conflict
-Gene sequencing for detecting and researching on deadly animal diseases.
3. Adopting a smarter lifestyle
- smart homes that promote energy saving and green - living .
- electric cars which are three times more conventional vehicles .
Hope this helps :)
I believe the acceleration would be 5m/s
All you would need to do is divide the final speed by the time it took to get there. I am only about 80 sure this answer is correct, so take my advise only if you feel comfortable.
M= gpe / gh
G= gpe / mh
H=gpe / mg
