A 2.0-kg ball rolls to the right at 3.0 m/s. A 4.0-kg ball rolls to the left at 2.0 m/s . What is the momentum of the system aft
1 answer:
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Answer:
a
b
Explanation:
From the question we are told that
The diameter is
Generally the radius electron orbit is mathematically represented as
=>
This radius can also be represented mathematically as
Here n is the quantum number and is the Bohr radius with a value
So
=>
Generally the angular momentum of the electron is mathematically represented as
Here h is the Planck constant and the value is
m is the mass of the electron with values
So
Answer:15,883.63 KJ
Explanation:
Given
Power=400 W
Freezing compartment temperature is 273 K
Outside air Temperature=306 K
Time =80 minutes
Energy Required to deliver 400 w power in 80 minutes
E=1920 KJ
and we know COP of refrigerator is given by
Therefore 15,883.63 KJ is removed in 80 minutes