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Vladimir79 [104]
3 years ago
10

A circuit contains three light bulbs in parallel. After observation, a fourth light bulb is added, also in parallel. How does th

e intensity of the four light bulb circuit compare with the intensity of the three light bulb circuit?
Physics
1 answer:
mr_godi [17]3 years ago
7 0
It should give out the same voltage ⚡ though different current flows through them since it resistance is in parallel
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Modern atomic theory states that atoms are neutral. how is this neutrality achieved in atoms? having more neutrons than protons
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The answer is having fewer neutrons than protons or electrons.
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4 years ago
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The flywheel of a steam engine runs with a constant angular speed of 113 $rev/min$. When steam is shut off, the friction of the
Oksana_A [137]

Answer:

α = - 1.883 rev/min²

Explanation:

Given

ωin = 113 rev/min

ωfin = 0 rev/min

t = 1.0 h = 60 min

α = ?

we can use the following equation

ωfin = ωin + α*t      ⇒     α = (ωfin - ωin) / t

⇒     α = (0 rev/min - 113 rev/min) / (60 min)

⇒     α = - 1.883 rev/min²

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3 years ago
For a top player, a tennis ball may leave the racket on the serve with a speed of 55 m/s (about 120 mi/h). If the ball has a mas
inn [45]

Answer:

Yes is large enough

Explanation:

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We know that,

F= ma

And we know as well that

a= \frac{v}{t}

Replacing the aceleration value in the equation force we have,

F= \frac{mv}{t}

Substituting our values we have,

F= \frac{(0.060)(55)}{4*10^{-3}}

F=825N

The weight of the person is then,

W = mg

W = (60)(9.8) = 558N

<em>We can conclude that force on the ball is large to lift the ball</em>

6 0
3 years ago
When ___ attacks the surface of a metal, it becomes tarnished.​
alexandr1967 [171]

Answer:corrosion (i believe)

Explanation:

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two cars go through 2 different crashes. car one 1 experiences a 500N impulse for a duration for 15s, while car2 experiences the
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Answer:

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Explanation:

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