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Finger [1]
3 years ago
5

Oxygen-18 is a naturally-occuring, stable isotope and is commonly used is scientific studies as a tracer. Using the periodic tab

le, predict the number of electrons, neutrons, and protons in oxygen-18.
Physics
1 answer:
Molodets [167]3 years ago
4 0

Answer:

1. Proton number = 8

2. Electron number = 8

3. Neutron = 10

Explanation:

Mass number = 18

Proton = 8(isotope still retain their atomic number)

Electron = proton = 8( since it is a neutral atom)

Neutron number =?

Neutron = Mass number - proton

Neutron number = 18 - 8 = 10

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timama [110]

Answer:

C

Explanation:

velocity = displacement (m) / change of time (s)

velocity = (400 + 300) / (100 + 400)

velocity = 1.4 m/s

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2 years ago
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Answer:

0.496 kg m^2

Explanation:

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\tau = Fd

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\tau = I \alpha

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\tau = 62 Nm is the net torque

I is the moment of inertia

\alpha = 125 rad/s^2 is the angular acceleration

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6 0
3 years ago
As an object falls
Sidana [21]
As an object falls in response to gravitational force, its velocity increases
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2 years ago
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To determine the location of the center of mass (or center of gravity) of a car, the car is drivenover a scale on a horizontal f
just olya [345]

Explanation:

It is given that,

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The distance between the front and rear wheels is measured to be 3.20 m, x₂ = 3.2 m

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On solving the above equation we get, x₂ = 1.69 m

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3 years ago
E=?
WITCHER [35]
E=mc2 or MC Squared as in (mass energy equivalence)
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3 years ago
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