Answer:
1.38 x 10^-18 J
Explanation:
q = - 1.6 x 10^-19 C
d = 5 x 10^-10 m
the potential energy of the system gives the value of work done
The formula for the potential energy is given by
So, the total potential energy of teh system is
As all the charges are same and the distance between the two charges is same so the total potential energy becomes
K = 9 x 10^9 Nm^2/C^2
By substituting the values
U = 1.38 x 10^-18 J
An object is moving along a straight line and the uncertainty in its position is 0.1 m.
(a) Find the minimum uncertainty in the momentum of the object.
kg · m/s
(b) Find the minimum uncertainty in the object's velocity, assuming that the object is a golf ball (mass = 0.045 kg).
m/s
(c) Find the minimum uncertainty in the object's velocity, assuming that the object is an electron.
m/s
Answer: I believe the right answer would be C
I hope this helps. Correct me if im wrong
Explanation:
Examples for effect of force - example
1) Can change the state of an object(rest to motion/ motion to rest):For example, pushing a heavy stone in order to move it. 2) May change the speed of an object if it is already moving. ... 3) May change the direction of motion of an object.