It said how long is the half life and it took 36 years for 3 half lives to occur (80 to 10), 1 half live =80/2=40, 2nd = 40/2 = 20 = 3rd = 20/2 = 10
Right so it takes 36 years for three half life's to occur, 36/3 is 12 years. It is 12. People are getting 9 because they counted 80 as the first half life instead of 40
what did people put for the comparison of xrays and ultrasound? i wrote about their advantages and disadvantages but felt like it wasnt enough?? 👎
The question did say in medicine Talk about Ionising and non ionising Identify bone fractures Prenatal Scanning Cause cancer Cure Cancer Removal of kidney stones
What was the kinetic energy answer? I got 0.5x0.05x12 but that makes 0.3 which surely is way to low? In the end I got 30.. If I got all of the maths questions wrong what do you think I'd get? I'm really not confident!!!!!!