Because most of the volume of an atom is where the electrons move.
Answer:
2.14N
Explanation:
According to Newtons second law
F = ma
F = m(v-u)/t
m = 0.25kg
v= 5.0m/s
u = 4.7m/s
t = 0.035s
Substitute
F = 0.25(5-4.7)/0.035
F = 0.25(0.3)/0035
F = 0.075/0.035
F = 2.14N
Hence the required force is 2.14N
Answer:
Explanation:
= 250 moles.
N = n×6.02×
= 1.505×
Total charge = (1.505×) × (1.6×)
= 2.4× C.
Answer:
The mass of the puck is 0.166 kg
Explanation:
It is given that,
Speed of the ice hockey puck, u = 12 m/s
Impulse delivered by the hockey stick, J = 4 kg-/s
After delivering an impulse, the puck move off in the opposite direction with the same speed, v = -12 m/s
We need to find the mass of the puck. The impulse is equal to the change in momentum i.e.
m is the mass of the puck
So, the mass of the puck is 0.166 kg. Hence, this is the required solution.
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