7 Apakah faktor utama yang
mempengaruhi fenomena
dalam maklumat berikut?
Amerika
Syarikat
(malam)
Jepun
(siang)
A Bentuk muka bumi
B Peredaran bumi
C Putaran bumi
D Keluasan tanah pamah

Renaldo and nasreen build an electromagnet by wrapping a wire around a nail and connecting the wire to both terminals of a battery. when they test the electromagnet, it can pick up 6 paper clips. their teacher wants all groups to pick up at least 10 paper clips. what could renaldo and nasreen do to increase the number of paper clips their electromagnet picks up?