When light rays<span> enter a </span>new medium<span> at an angle, the change in speed </span>causes<span> them to </span>bend<span> and change direction. ... They change the speed </span>causes<span> the </span>ray to bend<span> or change direction. When </span>light<span> slows down even more when it passes from water into glass.</span>
Answer:
Graphite.
Explanation:
Graphite:<em> "a gray crystalline allotropic form of carbon which occurs as a mineral in some rocks and can be made from coke. It is used as a solid lubricant, in pencils, and as a moderator in nuclear reactors."</em>
Answer:
Explanation:
The heat (thermal energy) absorbed by the iron skillet can be found using the following equation:
(1)
Where:
is the heat (absorbed)
is the mass of the element (iron in this case)
is the specific heat capacity of the material. In the case of iron is
is the variation in temperature
Knowing this, lets rewrite (1) with these values:
(2)
Finally:
Answer:
10 m
Explanation:
By the Newton's Law of gravitation
F = Gm₁m₂/r²
where F = gravitational attractive force,
G = Universal gravitational constant
m₁ & m₂ = masses involved
r = distance between centers of gravity of two cars
So you get,
F = 3.0349 X 10⁻⁷ = 6.674×10⁻¹¹ ×700×650/r²
r = 10 m
So if the two cars are identical the distance between two cars is 10 m,
else the distance between the centers of gravity of two cars is 10 m
Surfers like water because they are surfer and they like water