The table shows the decay in a 59 g sample of bismuth 212 overtime.

if bismuth 212 has a half-life of 60.5 seconds, how many grams of the sample will be left after 121 seconds?

A. 3.69 g
B. 7.38 g
C. 14.75 g
D. 29.5 g

Asmall electric heater, immersed in 80g of water in a calorimeter of 40j/k raises the temperature from 10.5 degree celsius to 25 degree celsius in 12 minutes. using the same apparatus with 50g of oil instead of water, it is found that the temperature of oil rises from 7 degree celsius to 27 degree celsius in 10 minutes. find specific heat capacity of the oil.

Formulating a hypothesis: part i since the investigative question has two variables, you need to focus on each one separately. thinking only about the first part of the question, mass, what might be a hypothesis that would illustrate the relationship between mass and kinetic energy? use the format of " because when writing your hypothesis

What instrument is used to measure liquid volume?