Se llaman cuerpos eléctricos.
1. The time for a radioactive sample to reduce to half of its original mass.
4. 10% of 232 is 23.2 times 6 equals 139.2
68.9 x6 equals 413.4
5. 0.37kg
6. 2000 years
7. 6.84 seconds
Actually, the speed of the earth is the same everywhere, taking the angular speed as the valid measure of the speed
(-5)/3 - 6/(-5)
You can solve it now :)
Answer:
air resistance, gravitational force
