Answer:
On removal to the glass rod the leaves of the electroscope will disperse away under the influence of the positive charge due to deficiency of electrons.
Explanation:
When a glass rod is rubbed against a nylon then the electrons from the surface of the glass rod get transferred to the nylon piece and as a result the glass rod attains positive electrostatic charge.
When this positively charged rod is brought close to the knob of an electroscope then the electrons from that metallic of the electroscope feel attraction and move toward the glass rod get concentrated on the knob.
- In this situation when any of our body part comes in direct contact to the knob these static concentrated charges get a path to flow from high concentration to a lower concentration under the influence of the electrostatic force of the rod.
- So these charges flow into our body from the knob.
- Our body acts as a reservoir for the charges on the metallic knob.
- Now after the electrons form the knob are transferred to the person's body the electroscope becomes electron deficient and hence positively charged.
- So now, on removal to the glass rod the leaves of the electroscope will disperse away under the influence of the positive charge.
Answer:
Revisar las respuestas a cada problema, como se muestra mas adelante.
Explanation:
Para poder solucionar esta serie de problemas debemos de utilizar la segunda ley de Newton, la cual nos dice que la sumatoria de fuerzas sobre un cuerpo debe de ser igual producto de la masa por la aceleracion.
De esta manera tenemos:
ΣF = m*a
donde:
F = fuerza [N]
m = masa [kg]
a = aceleracion [m/s^2]
1 )
F = m*a
60 = m*4
m = 15[kg]
2)
F = m*a
a = 250/50
a = 5 [m/s^2]
3)
F = m*a
F = 80*2.5
F = 200 [N]
4)
F = m*a
800 = 1500*a
a = 0.533[m/s^2]
5)
F = m*a
100 = 500*a
a = 100/500
a = 0.2 [m/s^2]
Answer:
679.08 lbs
Explanation:
Here it is given that
= Mass of first person = 175 pounds
= Height of first person = 70 inches
= Mass of second person
= Height of second person = 110 inches
The weight of the second person would be 679.08 lbs
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