Cindy exerts a force of 40 newtons and moves a chair 6 meters. Her brother Andy pushes a different chair for 6 meters while exerting a force of 30 newtons.
Andy does
work than Cindy. The difference of their amounts of work is
Nm.

What is the composition, in atom percent, of an alloy that consists of 4.5 wt% pb and 95.5 wt% sn? the atomic weights for pb and sn are 207.19 g/mol and 118.71 g/mol, respectively.(a) 2.6 at% pb and 97.4 at% sn(b) 7.6 at% pb and 92.4 at% sn(c)97.4 at% pb and 2.6 at% sn(d) 92.4 at% pb and 7.6 at% sn

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

If you have 5.25 grams of methane (ch4), how many grams of co2 will you produce ?