Jerome plays middle linebacker for South's varsity football team. In a game against cross-town rival North, he delivered a hit t
1 answer:
Explanation:
We have,
Mass of the running back, m = 82 kg
Initial speed of the running back, u = +5.6 m/s
Final speed of the running back, v = -2.5 m/s
It is required to find the momentum change of the running back. For this we will subtract final momentum to the initial momentum. So,
So, the magnitude of the change in momentum of the running back is 664.2 m/s in west direction.
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Answer:
Fnet = F√2
Fnet = kq²/r² √2
Explanation:
A exerts a force F on B, and C exerts an equal force F on B perpendicular to that. The net force can be found with Pythagorean theorem:
Fnet = √(F² + F²)
Fnet = F√2
The force between two charges particles is:
F = k q₁ q₂ / r²
where
k is Coulomb's constant, q₁ and q₂ are the charges, and r is the distance between the charges.
If we say the charge of each particle is q, then:
F = kq²/r²
Substituting:
Fnet = kq²/r² √2
Answer:
75.5g
Explanation:
From the ionic equation, we can write
next we find the number of charge
Note Q=it
for i=8.5A, t=3.75 to secs 3.75*60*60=13500secs
hence
Since one faraday represent one mole of electron which equal 96500C
Hence the number of mole produced by 114750C is
114750/96500=1.2mol
The mass of copper produced is
Hence the amount of copper produced is 75.5g