shayy100 shayy100
  • 24-05-2017
  • Physics
contestada

If 50% of a radioactive element remains after 4000years what is the half life

Respuesta :

Baileymetschke1 Baileymetschke1
  • 24-05-2017
25% because half of 50% is 25%

Answer Link

Otras preguntas

__________ fats or lipids form animal body fat that is used for stored energy and insulation.
1. Which of the following is not part of overall biodiversity? Choose one answer. a. species diversity b. genetic diversity c. individual diversity d. ec
Geomorphology is __________.Select one of the options below as your answer: a. the study of landforms b. the study of change c. a new functional region d. a
Which fractions are equivalent to -15/20 ? Choose all answers that are correct. A. -2/3 B.9/-12 C. -12/16 D. -25/30
Which of the following best illustrates a pair of sentences that are joined by an understood relationship? A. It rained for ten days and ten nights. Grandmothe
what is 12.35 rounded to the nearest tenth
What is larger tissue cells or a nucleus
plz help with dis science
Each cake tin is 25cm in diameter . How many cake tins fit on a 600mm X 500mm tray
How many moles of ethyl alcohol, C2H6O, are in a 37.0 g sample?