Answer:
given to you by others
Explanation:
Since it is other people who are giving you the feedback they may notice things that you are not aware you are doing. they can also give /help you to alter that thing and help you achieve you goal
Answer:
With more particles there will be more collisions and so a greater pressure. The number of particles is proportional to pressure, if the volume of the container and the temperature remain constant. ... This happens when the temperature is increased.
Explanation:
Explanation:
It is known that like charges tend to repel each other whereas unlike charges tend to attract each other. This means that two positive charges when come closer to each other will repel each other and if a negative charge comes in contact with a positive charge then both of them will attract each other.
Therefore, when you charge a pocket comb by rubbing it with a silk scarf then the scarf will obtain a certain charge. But as we place this silk scarf closer to the comb then if the scarf gets attracted towards the comb then it means opposite charges are present on both comb and the scarf.
But if the scarf and comb repel each other then it means opposite charges are present on them.
Answer:
a. 150 N
Explanation:
Gravitational Force: This is the force that act on a body under gravity.
The gravitational force always attract every object on or near the earth's surface. The earth therefore, exerts an attractive force on every object on or near it.
The S.I unit of gravitational force is Newton(N).
Mathematically, gravitational force of attraction is expressed as
(i) F = GmM/r² ........................ Equation 1 ( when it involves two object of different masses on the earth)
(ii) F = mg ............................... Equation 2 ( when it involves one mass and the gravitational field).
Given: m = 17 kg, g = 8.8 m/s²
Substituting into equation 2,
F = 17(8.8)
F = 149.6 N
F ≈ 150 N.
Thus the gravitational force = 150 N
The correct option is a. 150 N
The law of universal gravitation says that one object attracts every other object using a proportional force to the mass of the object.