Answer:w=mxg
2x10 =20 N
Explanation:force acting downwards is mg mass into gravitional feild
Answer:
C
Explanation:
During an investigation you want to investigate different variables.
I think D x=vxt because it's equation finding change of x (displacement) and using time
Answer:
They use LED lights.
Explanation:
Hope this helps
-A Helping Friend (mark brainliest pls)
Answer:
c. 12,500
Explanation:
Original number of atoms = 100,000 atoms
Half- life = 10min
Unknown:
The number of atoms that will remain after 10min = ?
Solution:
The half - life is the time taken for half of a radioactive substance to decay by half.
Time taken Number of atom half life
10min 100000 _
20min 50000 1
30min 25000 2
40min 12500 3
