A device has a least count of 0.01m if it measures a length less than 100m the minimum and maximum number of significant figure are a)1 and 2
B)2 and 3
C)1 and 4
D) 0 and 2

C) 1 and 4

Explanation:

Least count is .01 m . If one measures any number between 100 and 99 , it will be like 99.25 or 99.37 m . So number of significant figure will be 4 ( maximum )

The least one can measure is .01 so least number of significant figure possible is 1 .

vapour or gas assuming atmospheriv pressure

we're given that v₀ = 0 and a = 5.4 m/s². therefore, since v = at + v₀ for constant acceleration the equation for velocity is

after 28s,

m/s

which i would round to 150 m/s as my final answer