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Best with a smooth surface
If not for this behavior of light, your mirror
would not work!
Light wave changes speed
Most microscopes and some telescopes
use lenses that take advantage of this
behavior of light
This occurs when light bounces off of a
surface
This behavior of light allows the lenses in
your glasses to bend incoming light waves
This occurs when light moves from
medium to another, Like water to air
Reflection
Refraction
Help!!!

temp rises, and expansion

here are some information of the future of geothermal energy:

-the future of geothermal energy can pretty much be summed up with a single word: more

-scientists plan in going deeper than 120 meters

-we are hoping that one day, we will get all of our energy from renewable energy sources such as geothermal energy

hope this !

the answer is f1 and d2 because if you put equal force on those two points the beam would balance trust me on this

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards