Answer:
D. pre schematic
Explanation:
During the _pre schematic____ developmental stage children are drawing their thoughts instead of merely observations.
Pre schematic stage in children is the age at which they drawing, symbols, spatial figures to express themselves. Their becomes more complex and full of lines as they age. They use single base lines, multiple base lines and fold up views.
<span>Yes, the vast majority of an atom is indeed empty space. Most of it's mass is centered in the nucleus. Flying around the nucleus are the electrons, but they're very very far away (on an atomic level anyway). Most of the atom is the space between the nucleus and the electrons.</span>
It hink that it is the 2nd one
Assumption :
- The process is adiabatic
- Heat from electric kettle is constant
- Efficiency of electric kettle is 100%
Q = m • c • ∆T
P • t = m • c • ∆T
2400t= (4.5 kg)(4200 J/kg°C)(100°C - 28°C)
2400t = 1360800
t = 567 s
t = 9.45 min
