Density
is a value for mass, such as kg, divided by a value for volume, such as m3.
Density is a physical property of a substance that represents the mass of that
substance per unit volume. It is a property that can be used to describe a
substance.<span> </span><span>It has standard units of
kg/m^3 or g/mL.
So, the best answer is option C.</span>
Answer:

Explanation:
initial velocity
magnitude of velocity, v = 12 m/s
angle made of velocity with negative x-axis,θ = 60°
We need to calculate x- component of v

velocity is in negative x-direction, v = -12 m/s
now,



Hence, the velocity x-component is equal to -6 m/s.
239 239 0
Np → Pu + e
93 94 -1 is the equation shows the beta decay of a transuranium element.
<h3>What is a Transuranium element?</h3>
These are elements whose atomic number is greater than that of uranium which is 92.
Neptunio has an atomic number of 93 which is why option D was chosen as the most appropriate choice.
Read more about beta decay here brainly.com/question/12448836
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