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GalinKa [24]
4 years ago
11

Is O2 considered one atom or 2 atoms?

Physics
2 answers:
satela [25.4K]4 years ago
8 0
O2 is considered two atoms
natulia [17]4 years ago
4 0
O2 is considered 2 atoms because O2 is 2 oxygen atoms.

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The current in the wires of a circuit is 60.0 milliAmps. If the voltage impressed across the ends of the circuit were doubled (w
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Answer:

120 mA

Explanation:

The relationship between voltage, current and resistance in a circuit is given by Ohm's law

I=\frac{V}{R}

where

I is the current

V is the voltage

R is the resistance

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Then the voltage is doubled:

V' = 2 V

while the resistance is kept the same:

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3 0
3 years ago
A 500 kilogram roller coaster starts from rest at the top of an 80 meter hill.What was its speed at the bottom at the hill?
GarryVolchara [31]

m = mass of the roller coaster = 500 kg

h = height of the hill = 80 m

v = speed of the roller coaster at the bottom of the hill = ?

using conservation of energy

kinetic energy at the bottom of the hill = potential energy at the top of hill

(0.5) m v² = m g h

(0.5) v² = g h

inserting the values

(0.5) v² = (9.8) (80)

v = 39.6 m/s

hence the speed at the bottom comes out to be 39.6 m/s

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3 years ago
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4.62x10^-11
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4 years ago
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