The formula that relates the 3 variables, namely: mass,
volume, and density is: Density = mass / volume.
Let us identify each variable:
Density - more accurately called the volumetric mass density of a
substance is its mass per unit volume. It is a key concept that examines how
materials communicate in a lot of things, i.e weather, material sciences,
engineering, and other fields of science.
Mass – defined as a property of
a physical body in Physics, and when a net force is applied,
it results to the measure of a specific
object’s resistance to acceleration.
Volume - <span>contained or
occupied by the space of a substance or shape (either by a solid, liquid, gas
or plasma state)</span>
Explanation:
<h2>impulse = change in momentum</h2><h2>F×t =m(v-u)</h2><h2>I = 0.140(20-0)</h2><h2>I = 0.140 × 20</h2><h2>I = 2.8NS</h2>
When it is directed at a mirror it is reflected
When it is directed at a glass block it refracts
When it is directed through a prism the light splits to form a spectrum ( red orange yellow green blue indigo and violet )
Hope this is ok
The first positively essential requirement is that
you absolutely have to know what 'a' and 'b' are.
I have no clue, so this is as far as I can go.
Answer:
Explanation:
From the question we are told that
Nucleus diameter 
a 12C nucleus
Required kinetic energy 
Generally initial speed of proton must be determined,applying the law of conservation of energy we have
where
=initial kinetic energy
=final kinetic energy
=initial electric potential
=final electric potential
mathematically
where
=distance b/w charges
=nucleus charge 
=constant
=proton charge
Generally kinetic energy is know as
Therefore
Generally equation for radius is 
Mathematically solving for radius of nucleus
Generally we can easily solving mathematically substitute into v_1
Therefore the proton must be fired out with a speed of
