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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Answer:
Charge,
Explanation:
It is given that,
The number of electron in a RBCs,
We need to find the total charge of these electrons in the red blood cell. Let it is q. Using the quantization of charge as follows :
q = ne
e is the change on electron
So, the net charge is .