magmoo3779
27.09.2019 •
Physics
If 105 j of energy is used in 103 s, what is the average power consumption in watts?
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Ответ:
103 s (time)
Unknown: P=?
Formula: P=W/t
Solution: P= 105 J/103 s = n
P= 1.02 J/s or watts is the average power
Ответ:
Correct a₂ > a₁
Explanation:
Given:
Tony mass = m₁ = 50 kg
Sam mass = m₂ = 45 kg
According to Newton's second law, the formula for calculating force is:
F = m · a
In this case we have the same force for both
F = m₁ a₁ = m₂ a₂ => a₁ / a₂ = m₂ / m₁ = 45 / 50 = 9 / 10 = 0.9
a₁ = 0.9 a₂ => a₁ = 90% of a₂ => a₂ > a₁
a₂ > a₁
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