Answer:
The ball rolled a distance of 54 m.
Explanation:
Given:
Initial velocity of the ball is,
Final velocity of the ball is,
Time for rolling is,
The distance of rolling is,
First, let us find the acceleration of the ball using Newton's equation of motion as:
Now, displacement of the ball can be determined using the following equation of motion:
Rewriting the above in terms of 'S', we get
Plug in the known values and solve for 'S'. This gives,
Therefore, the ball rolled a distance of 54 m.
C. Both A. and B.
Explanation:
Statement A. Reducing the volume is true because of Boyle's law, which states that for a gas at fixed temperature, the pressure p and the volume V are inversely proportional:
Therefore, when the volume V is reduced, the pressure p increases.
Statement B. Adding more gas is also true: in fact, if we add gas into the container, we will have more molecules of the gas hitting the wall of the container. But the pressure of a gas is exactly given by this: by the collision of the molecules against the wall of the container, so the more the molecules of gas, the greater the pressure.
The number of kilowatts used by an individual to operate his appliances is determined as 12.1 kWh.
<h3>
Average daily power consumption</h3>
The average daily power consumption is the amount of electric energy consumed by an individual on a daily rate.
The average daily power consumption of individuals in USA is 12,100 W-hr.
<h3>Converting watts to kilowatts</h3>
E = 12,100 Whr/1000
E = 12.1 kWh
Thus, the number of kilowatts used by an individual to operate his appliances is determined as 12.1 kWh.
Learn more about power here: brainly.com/question/13881533
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It is possible for neutral objects to become charged by rubbing them together due to friction. Electrons of one object transfer to the other resulting to more electrons in the object than its protons therefore leaving it as charged. Hope this answers the question.