A material that transmits nearly all the light that strikes it
is described as being "transparent", but that has nothing
to do with "resistance to the light", whatever that is.
Even the blackest, densest material, like wood, foil, or concrete,
has no "resistance" to light. It simply absorbs light that enters it,
so some or all of the light that went in one side never made it to
the other side.
Transparent material absorbs very little, so almost all of the
light that goes in one side comes out the other side.
Answer:
Centre of mass is the point at which the distribution of mass is equal in all directions, and does not depend on gravitational field. Centre of gravity is the point at which the distribution of weight is equal in all directions, and does depend on gravitational field.
Answer:
Magnitude of the force is 2601.9 N
Explanation:
m = 450 kg
coefficient of static friction μs = 0.73
coefficient of kinetic friction is μk = 0.59
The force required to start crate moving is 
.
but once crate starts moving the force of friction is reduced .
Hence to keep crate moving at constant velocity we have to reduce the force pushing crate ie .
Then the above pushing force will equal the frictional force due to kinetic friction and constant velocity is possible as forces are balanced.
Magnitude of the force
<u>Answer:</u>
<u>Answer:Chromium</u>
Explanation:
Chromium is the first element in the sixth column of the periodic table. It is classified as a transition metal. Chromium atoms have 24 electrons and 24 protons with the most abundant isotope having 28 neutrons.
Answer:
Explanation:
From the question we are told that:
coefficient of static friction 
Velocity 
Generally the equation for Conservation of energy is mathematically given by
