HELP MEE PLEASE A sample contains 16 g of a radioactive isotope. How much radioactive
isotope remains in the sample after 1 half-life?

Picture a all traveling at a constant speed around the inside of a circular structure. is the ball accelerating? explain your answer

Astudent is working in the lab to determine how time affect impulse the student keeps the force the same in each row but changes impact the time some data is shown witch trial has the greatest a student is working in the lab to determine how time affect impulse the student keeps the fours the same in each row but change is the impact time some data shown witch trial has the greatest impulse

The molecular weight of oxygen gas (o2) is 32 while that of hydrogen gas (h2) is 2. prove that under same physical conditions, the velocity of sound in hydrogen is four times that in oxygen