PLEASE THINK ABOUT THIS AND EXPLAIN FULLY :)
1 answer:
Explanation:
It is given that,
Mass of object, m = 2 kg
Initial velocity, u = 3 m/s (east)
Final velocity, v = - 7 m/s (west)
The Impulse can be calculated using the change in momentum of an object i.e.
J = m(v-u)
J = -20 kg-m/s
So, the Impulse of this object is 20 kg-m/s but the direction is opposite. Hence, statement (1) is correct i.e. Student #1: "The impulse is equal to the change in momentum, which is (2 kg)(3 m/s + 7 m/s) = 20 kg m/s."
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The lowest energy of electron in an infinite well is 1.2*10^-33J.
To find the answer, we have to know more about the infinite well.
<h3>What is the lowest energy of electron in an infinite well?</h3>- It is given that, the infinite well having a width of 0.050 mm.
- We have the expression for energy of electron in an infinite well as,
- where;
- Thus, the lowest energy of electron in an infinite well is,
Thus, we can conclude that, the lowest energy of electron in an infinite well is 1.2*10^-33J.
Learn more about the infinite well here:
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