7.For the following questions, use a periodic table and your atomic calculations to find the unknown information about each isot
ope:
You have an neutrally charged isotope with 30 electrons and a mass number of 64. What element is it?
Cu: Copper
Zn: Zinc
P: Phosphorus
Se: Selenium
1 answer:
I believe the answer to this is Zinc
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No se creo es 45.7 de nada
Answer:
262.5 Nm
Explanation:
Torque is the rate of change of angular momentum.
Hence, we have
Δ<em>L</em> is the change in angular momentum.
Using values in the question,
Potential energy = (mass) · (gravity) · (height)
PE = (60 kg) · (9.8 m/s²) · (10 m)
PE = (60 · 9.8 · 10) · (kg · m²/s² )
PE = 5,880 joules
