2. Quando no passo seguinte a maçã é colocada no recipiente com água, a intensidade da impulsão é… a. ascendente.
b. igual ao valor da força peso e, por isso, a maçã sobe.
c. menor do que o valor da força peso e, por isso, a maçã sobe.
d. maior do que o valor da força peso e, por isso, a maçã sobe.

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.

i think its 100.

hope this !