Answer:
3/5 v
Explanation:
The computation of speed will the alpha particle have after the collision is shown below:-
In a perfectly elastic the kinetic energy and collision the momentum are considered.
The velocity of the particles defines the below equation:
As we know that
Here, we consider A is the alpha particle and B is the proton and now by the above values we can solve the equation which is below:-
Therefore the correct answer is
Answer: (a)part:545nm multiply by 0.440m=239.8JEWELS(J)
(B):1/2MULTIPLY BY MVSQUARE(APPLY THE FORMULA OF KINETIC ENERGY)REARANGE THE FORMULA,V=2.13MS
Explanation:
SO FOR PART A, IN ORDER TO CALCULATE THE WORK DONE YOUR SUPPOSE TO APPLY THE FORMULA FORCE MULTIPLY BY DISTANCE WHICH IS THE FORMULA FOR WORK DONE,IN THIS SCENARIO YOU HAD A FORCE OF 545NM AND A DISANCE OF 0.440,SO I ORDER TO FIND THE WORK DONE WE MULTIPLIED THEM BOTHE ACCORDING TO THE FORMULA AND GOT THE ANSWER.
FOR PARTB,I JUST SIMPLY APPLIED THE FORMULA FOR KINETIC ENERGY AND SIMPLY REARRANGED IT IN ORDER TO FIND THE VELOCITY.I MADE V THE SUBJECT OF THE FORMULA.
Answer:
(A) Acceleration will be
(b) Time taken will be
(c) Force will be
Explanation:
We have given that electron starts from rest so initial velocity u = 0 m/sec
Final velocity
Mass of electron
Distance traveled by electron
From third equation of motion we know that
(a) So
(b) From first equation of motion we know that v = u+at
So
(c) From newton's law we know that force
Answer:
Explanation:
We can use the Einsten's relation which states the equivalence between mass and energy:
where
E is the energy
m is the rest mass of the object
c is the speed of light
By using this formula and m=2.5 kg, we can find the equivalent energy of the object:
For finding a momentum p=mv so p=9×2 , P=18