$2.$ A collection of problems$/$puzzles about weight and mass, intended to help clarify the concepts and to give you a sense of magnitude of typical units. $($a$)$ Which weighs more? $($Assume all objects are on the surface of the Earth.$)$ i$.$ Stephen Colbert or a $10$ kg crate of bricks? ii$.$ Jim the Wonder Dog' or a $10$ slug crate of feathers? iii. Ruth Bader Ginsberg or a rock that weighs $400$ lb $($on Earth$)?$ iv$.$ Any one of the Bangtan Boys $($i$.$e$.$ BTS$)$ or an I$-$beam that weighs $2$kN $($on Earth$)?($b$)$ Now assume that all objects are on the surface of the sun, where the acceleration of gravity is about Isun $289$Earth i$.$ Stephen Colbert or a $10$ kg crate of bricks? ii$.$ Jim the Wonder Dog or a $10$ slug crate of feathers? iii. Ruth Bader Ginsberg or a rock that weighs $400$ lb $($on the Sun$)?$ iv$.$ Any one of the Bangtan Boys $($i$.$e$.$ BTS$)$ or an I$-$beam that weighs $2$kN $($on the Sun$)?($c$)$ Put the following in order from least massive to most massive. $($All weights are given on the surface of the Earth$)..1$ Newton $.1$ kg $1$ lb $1$ slug $($d$)$ Estimate to the nearest factor of ten: i$.$ How many Newtons can you lift? ii$.$ How many lb can you lift? $($e$)$ Estimate to one significant digit: i$.$ A car's weight in Newtons. ii$.$ A car's weight in lb$.$