Answer:
v = 14.32 m/s
Explanation:
According to the principle of conservation of linear momentum, both the momentum and kinetic energy of the system are conserved. Since the two balls are in the same direction of motion before collision, then;
+ 
= (
+ 
) v
0.035 × 12 + 0.120 × 15 = (0.035 + 0.120) v
0.420 + 1.800 = (0.155) v
2.22 = 0.155 v
⇒ v = 
= 14.323
The velocity of the balls after collision is 14.32 m/s.
Answer:
The ion has fewer electrons
Explanation:
As Rubidium forms a positive ion Rb⁺ the number of electrons becomes fewer for the atom.
- A positive charge on an ion indicates that the number of protons for the atom is greater than the number of electrons.
- This leaves a net positive charge on the atom.
- For a negatively charged ion, the number of electrons is more than the number of protons because they have gained additional electrons.
- In a neutral atom, the number of protons and electrons are the same.
Bar graphs show data involved in distinct categories that do not overlap; whereas, pie charts show data as parts out of a whole (such as out of 100%).
Answer:
<h3>i think it is 7.10 </h3>
Explanation:
I dont have an explenation
Answer:
600 km
6 hours
Explanation:
El tiempo que viaja el automóvil de 6 a 10 de la mañana es 
La velocidad del coche es 150 km/hr
La distancia está dada por
A distancia recorrida a las 10 de la mañana es de 600 km.
Ahora el tiempo que se toma está dado por
El tiempo que se tarda en recorrer 900 km es de 6 horas.
