Which action would decrease the entropy of a deck of playing cards?
2 answers:
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Answer:
The electric force will be 0 N
Explanation:
From the question we are told that
The magnitude of the charge is
Generally from Coulombs law the electric force between two charges is mathematically represented as
Here r is the distance of separation between that two charges.
Now from the question we are told that the charge is far away from any other charge hence we can say that the distance between the charge and any other charge is
So
=>
Hence the electric force will be 0 N
Explanation:
- We know that Newton's second law of motion gives the measure of external force acting on an object. It says that the rate of change of linear momentum of an object is directly proportional to the external applied force. It is given by :
Since, p = mv m is mass and v is velocity.
So, if one knows only the constant resultant force acting on an object and the time during which this force acts, one can determine the change in momentum of the impulse.
Answer:
E > A = B > C > D
Explanation:
On a semicircular curve, the magnitude of force is given by the formula as :
Here, m is the mass of the vehicle
Case A : R = 60 m v = 16 m/s
Case B : R = 15 m v = 8 m/s
Case C : R = 30 m v = 4 m/s
Case D : R = 45 m v = 4 m/s
Case E : R = 30 m v = 16 m/s
The order of the magnitude of the force of the roller-coaster track on the cart from largest to smallest is :
E > A = B > C > D