If matter has a wave nature, why is this wave-like characteristic not observable in our daily experiences?
1 answer:
Answer:
Due to the large mass of the objects, we can not observe wave-like characteristics in daily life.
Explanation:
The wavelength of De-Broglie is given by the relation:
Here, h is Planks constant, m is the mass of electron, v is the velocity.
The Plank’s constant value is very small,so the wavelength which is associated with ordinary object is very small and it is very difficult to observe in our daily life.
In daily life we observe the objects posses the larger mass and much smaller velocity,that is why the wave nature of these large objects is not more common in day to day life.
But for the small objects like neutrons and electrons, the wave behavior of particle is dominating .It is because of the reason that mass of neutron and electron are very small in comparision with the ordinary tennis ball.
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Answer:
22050 J
Explanation:
Given Mass of the ball, m = 4.5 Kg
Height, h =500 m
Acceleration due to gravity,
To calculate the potential energy we use formula,
Substituting the given values, we get
PE = 4.5× 9.8×500
=22050 J
I assume L=120 yards as the length of the football field.
1) The average speed is given by the total distance covered by the player divided by the time taken.
The total distance covered to go from one goal line to the other and then back to the 40-yards line is
And the time taken is t=22.4 s, so the average speed of the player is
2) The find the average velocity, we should also consider the direction (and the sign) of the velocity.
In the the first part of the motion, the player goes from one goal line to the other one, so he covers 120 y. However, in the second part of the motion he goes back by 80 y. Therefore, the net displacement of the player is
and so, the average velocity is
1) The average speed is given by the total distance covered by the player divided by the time taken.
The total distance covered to go from one goal line to the other and then back to the 40-yards line is
And the time taken is t=22.4 s, so the average speed of the player is
2) The find the average velocity, we should also consider the direction (and the sign) of the velocity.
In the the first part of the motion, the player goes from one goal line to the other one, so he covers 120 y. However, in the second part of the motion he goes back by 80 y. Therefore, the net displacement of the player is
and so, the average velocity is