Answer:
a. The object will attract the glass rod.
b. The object will repel the glass rod.
Explanation:
a. When you rub a plastic rod with wool, it becomes negatively charged. This is because the wool material loses some of its electrons to the plastic rod. The wool becomes positively charged while the plastic rod becomes negatively charged.
Hence, for an object to repel the negatively charged plastic rod, it must also be negatively charged. This is because objects with like charges repel one another.
On the other hand, when you rub a glass rod with a silk material, it becomes positively charged. This is because the glass rod loses its electrons to the silk material. The silk material then becomes negatively charged, while the glass rod becomes positively charged.
Therefore, the negatively charged object will attract the already positively charged glass rod.
b. For an object to attract a negatively charged plastic rod, then it must be positively charged, since unlike charges attract.
So, a positively charged object will repel the negatively charged glass rod.
For the problem we will apply the concepts related to Newton's second law. Recall that this is defined as the product between mass and acceleration, and that in special cases, when the acceleration is equivalent to the force of gravity, the force is equivalent to the weight of the person. From these relationships we will find the mass, and then the acceleration with the given force.
Here,
= Force
m = Mass
g = Gravity
Replacing and rearranging we have that the mass is,
Now using the value of the force, but solving for the acceleration with the previous value of the mass we have,
Therefore the acceleration of the box is 
The answer you are looking for is 400 joules.
<h2>Equation of state of an ideal gas</h2>
<em>The </em><em>ideal gas law is derived</em><em> from the ga</em><em>s laws of Boyle, Charles, Gay Lussac and General.</em>
To solve this exercise, we obtain the data of the exercise:
- V₁ = 52 Lt
- P₁ = 1,2 atm
- P₂ = 0.75 atm
- V₂ = ¿?
<em>The general formula of the </em><em>Equations of state of an ideal gas is:</em>
<h3>P₁V₁=P₂V₂, Where</h3>
- P₁ = Initial pressure
- V₁ = Initial volume
- P₂ = End Pressure
- V₂ = Final Volume
We clear the formula, since it is the value that we must calculate.
<h3>
V₂ = P₁V₁ / P₂</h3>
To solve, we substitute our data in the formula; and we solve
<h3>
V₂ = (1,2 atm)·(52 Lt) / 0.75 atm</h3><h3>
V₂ = 0.832 Lt</h3>
Answer:<em> The </em><em>volume that the gas will occupy</em><em> if the pressure increases to 0.75 atm is </em><em>0.832 lt.</em>
<h2>
See more about this at:</h2><h3>
brainly.com/question/15907283</h3>
Explanation:
The acceleration of an object depends directly upon the net force acting upon the object, and inversely upon the mass of the object. As the force acting upon an object is increased, the acceleration of the object is increased. As the mass of an object is increased, the acceleration of the object is decreased
