Explanation:
a hot toothbrush. ......lol
Answer:
66.7%
Explanation:
There are 6 pulleys, so the mechanical advantage is 6.
The theoretical force needed to overcome 1200 N is therefore:
1200 N / 6 = 200 N
The actual force is 300 N. So the efficiency is:
200 N / 300 N × 100% = 66.7%
Answer:
Atoms cannot be divided using chemicals. They do consist of parts, which include protons, neutrons,...
Each electron has a negative electrical charge.
Each proton has a positive electrical charge.
Each neutron is electrically neutral. In other words, neutrons do not have a charge
Explanation:
