If the mass of a material is 111 grams and the volume of the material is 23 cm3, what would the density of the material be? g/cm
1 answer:
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When light travels from a medium with higher refractive index to a medium with lower refractive index, the critical angle is the angle of incidence above which light is reflected only (no refraction occurs), and the value of this critical angle is given by
where n2 is the refractive index of the second medium and n1 is the refractive index of the first medium.
In this problem, the first medium is the glass (
), while the second medium is oil (
), therefore the critical angle is given by
where n2 is the refractive index of the second medium and n1 is the refractive index of the first medium.
In this problem, the first medium is the glass (
Answer:
B. 2.77 x N
Explanation:
The required force can be calculated by:
F =
Where F is the force between the particles, K is the coulomb's constant (9 x
),
is the charge on the first particle,
is the charge on the second particle and
is the distance between the particles.
So that:
F =
=
= 2.7692 x
The force between the particles is 2.77 x N.
- Radius=r=R_o/2
- angular velocity=w=v_o
- mass=m
We know
For Rotational motion
.
Putting value