Answer:
Explanation:
In a rotating system , when a torque is applied , angular acceleration or deceleration takes place . The child is walking towards the center . He must be applying force on the ground . In return , ground must be applying reaction force on him which helps him to go towards the center . These two force of action and reaction are internal forces . One will increase the angular momentum of one and the other force will decrease the angular
momentum of other . But total angular momentum of the whole system will remain constant . So angular momentum will be conserved.
There is no such thing as an AC Generator, if its a generator, its DC. I think you are talking about an AC Alternator, in which case the answer would be -wrong answer, deleted-
Answer:
Left
Explanation:
The force is applied opposite of the acceleration.
For this question we can use the combined gas law equation.
for a fixed amount of gas
where P - pressure , V - volume , T- temperature and k - constant
Where parameters for the first instance are on the left side and parameters for the second instance are on the right side of the equation
temperature in K
T1 = 12 °C + 273 = 285 K
T2 - 16 °C + 273 = 289 K
substituting the values in the equation
V = 1.00 mL
Potential Energy is calculated through the equation,
PE = m x g x h
where m is the mass, g is the acceleration due to gravity, and h is the height. Since, weight is equal to mass times gravity, PE may also be calculated through the equation,
PE = W x h
Substituting the known values,
PE = (2,200 N) x (15 m)
<em>PE = 33,000 J</em>