As the rate of radioactive decay becomes smaller, half-life becomes .

Which would not reduce the amount of green house gasses in the air

Idon’t quite understand this problem

Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. the scale reads 830 n for the first 2.4 s after the elevator starts moving, then 930 n for the next 2.4 s. part a what is the elevator's speed 4.8 s after starting? express your answer with the appropriate units.