A31.0 kg child on a swing reaches a maximum height of 1.92 m above their rest position.
assuming no loss of energy: a) at what point during the swing will she attain their maximum speed?
b) what will be her maximum speed through the subsequent swing?
c) assuming this maximum height was the result of one push from her parent, what was the
i found these questions online for a test and i'm unsure how to go about these questions. , i have one week to prepare. i need

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f

Select the correct answer. what does the process of natural selection involve?

Beryl states that insulation with the smallest possible thermal conductivity is best to keep a house warm in winter, but worst for keeping a house cool in summer. sapphire insists the reverse is true: low thermal conductivity is good in the summer, but bad in the winter. which one, if either is correct? a. beryl, because low thermal conductivity results in low heat transfer. b. beryl, because low thermal conductivity results in high heat transfer. d. sapphire, because low thermal conductivity results in high heat transfer. e. neither, because low heat transfer is desirable both in summer and in winter.