A vehicle performs accelarating movement with acceleration α = 2 m / s2. This means that : a) Every second increases its speed by 2 m / s
b) Every second it shifts by 2 m
c) Every second reduces its speed by 2 m / s
d) Every second increases its acceleration by 2m / s2

Achemistry student needs of 40ml diethylamine for an experiment. by consulting the crc handbook of chemistry and physics, the student discovers that the density of diethylamine is 0.7 . calculate the mass of diethylamine the student should weigh out. round your answer to significant digits.

Your science teacher brings in a speaker to talk to your class about climate change. during the session, students ask a few questions. which questions are related to the current evidence on climate change

Does heating a metal wire increase or decrease its electrical resistance? why?