Answer:
When light enters from air to water i.e. it is moving from rarer to denser medium, it changes its original path as there is a change of speed of light and deflects itself towards the normal. This is known as the refraction of light and this is why a pencil in a cup of water looks as if it is broken and larger.
Explanation:
Answer:
The minimum wall thickness required for the spherical tank is 0.0189 m
Explanation:
Given data:
d = inside diameter = 8.1 m
P = internal pressure = 1.26 MPa
σ = 270 MPa
factor of safety = 2
Question: Determine the minimum wall thickness required for the spherical tank, tmin = ?
The allow factor of safety:
The minimun wall thickness:
Answer:
Polymers are widely used advanced materials, which are found almost in every material used in our daily life. ... The rapid increase in demand for the manufactured products introduce the new materials. These new materials are polymers, and their impact on the present way of life is almost incalculable.Explanation:
Answer:
The strength of magnetic field is T
Explanation:
Given:
Length of rod m
Velocity
Induced emf V
According to the faraday's law
Induced emf =
We have to find strength of the magnetic field,
T
Therefore, the strength of magnetic field is T
Answer:
v = 2000m/60s; v = 33.33 m/s (plus, in velocity direction is needed in answer, if given)
Explanation:
velocity = distance/time