Answer:
A switch interrupts the flow of current in a circuit.
Explanation:
Answer: 6.65 rad/s
Explanation:
Firstly, we need to know that according the kinetic theory of gases, the average kinetic energy
of a molecule with
degrees of freedom is:
(1)
Where:
because oxigen is a diatomic molecule and has 5 degrees of freedom
is the Boltzman constant
is the temperature
Then:
(2)
(3) With this value of average kinetic energy we can find the average angular velocity, with the following equation:
(4)
Where:
is the moment of inertia
is the angular velocity
Now,
(5)
Being
the molar mass of Oxigen molecule and
the distance between atoms
(6)
(7)
Substituting (7) and (3) in (4):
(8)
Finding
:
(9) This is the average angular velocity for a molecule of O2
Answer:

Given:
Initial velocity, u = 0 m/s
Final velocity, v = 34 m/s
Time interval, 
Solution:
Acceleration is the rate at which the velocity of an object changes.
Thus
Average acceleration, 

+2 electron charges = 2x1.6x10^-19Coulombs
Answer:
Explanation:
Let the volume of the unknown bulb = X L
The volume of the system , after opening valve = (X + 0.72 L )
Use Boyles law gas equation,
P1V1 = P2V2 ( at temperature is constant )
Given:
P1 = 1.2 atm
P2 = 683 torr
Converting mmHg to atm,
1 atm = 760 mmHg(torr)
683 mmHg = 683/760
= 0.8987 atm
1.2X = 0.8987*(X + 0.720)
1.2X = 0.8987X + 0.6471
0.3013X = 0.6471
X = 2.15 L