Answer:
Preoperational stage of Piaget's cognitive development.
Explanation:
When asked where the sun goes at night, four-year-old Kiet explains to his dad that it goes to sleep. Later that day, Kiet gets upset because he believes his sister's glass contains more juice than his glass. Both glasses actually contain the same amount of juice, but Kiet is confused because of the tall and thin shape of his sister's glass. From these instances, we can say that Kiet is in the pre-operational stage of Piaget's cognitive development.
Answer:
All of the above
Explanation:
Being a good parent is keep a child safe
A tack weld must be correctly applied so that it is strong enough to hold the assembly and still not interfere with the finished welding.
Welding could be a fabrication method whereby 2 or additional elements are consolidated along by suggests that of warmth, pressure or each forming a be part of because the elements cool. fastening is typically used on metals and thermoplastics however also can be used on wood.
The tack weld ought to be robust enough to resist forces to that it should be subjected. The tack welds ought to be fitly sized so they'll manage the load of the elements that they're holding. Tack welds are usually created once the assembly is being preheated as preparation for the final welding process.
To learn more about Welding here
brainly.com/question/21049525
#SPJ4
Explanation:
relating to human society at a very early stage of development, with people living in a simple way without machines or a writing system: ... Early settlers had to cope with very primitive living conditions.