Answer:
Explanation:
The velocity of the neutrons is
The mass of a neutron is
So their momentum is
The relative uncertainty on the velocity is 2 %. Assuming that the mass of the neutron is known with negligible uncertainty, then the relative uncertainty on the momentum of the neutron is equal to the relative uncertainty on the velocity, so 2%. Therefore, the absolute uncertainty on the momentum is
Heisenber's uncertainty principle states that
where
is the uncertainty on the position
h is the Planck constant
Solving for , we find the minimum uncertainty on the position:
Answer:
Decelerating
Explanation:
One arrow is moving it forward but the other arrow is using more force to move it backwards causing it to have a reduction in speed.
Answer:
The velocity and height is 31 m/s and 44.4 m respectively .
Explanation:
Given :
Initial speed of rock , u = 8.5 m/s .
Time taken to reach ground , t = 2.25 s .
Also , acceleration due to gravity is , .
Now , to find the velocity when it hit ground .
Applying equation of motion :
Also , height from which rock is thrown is given by :
Hence , this is the required solution .
Answer:
A=16.6 repeating
explanation:
take 100/6 and solve just make sure your equation is set up correctly!
and you should get an answer of 16.6 repeating or 166 m/hour or 16.6 meters/per/hour