Answer:
Ozone layer in the upper atmosphere filters most of the harmful radiations of shorter wavelength. It actually absorbs the hazardous radiations like ultraviolet, gamma rays, x- rays and most of all those having shorter wavelength then the visible light. That's how the earth's atmosphere protects life on earth. But unfortunately, climate change and global warming is causing the depletion of ozone layer which is causing skin related diseases and harming not only the human life but also the plants and animals.
Answer:
First Law
Explanation:
I learned this in 6th grade
Answer:
D. transparent.
Explanation:
A material that transmits nearly all the light in a ray because it offers little resistance to the light is <u>transparent.</u>
A transparent material allows light to pass through them with little or no resistance enabling them see-through. A material that transmits nearly all the light rays that pass through it because it offers little resistance to the light is TRANSPARENT. Examples of transparent materials are water, glass (flint and crown), air, and diamond.
Answer:
the date is the only thing that's the same everywhere you go because time is different
Answer:E
=
252
J
Explanation:
The total mechanical energy of an object or system is given by:
E
m
e
c
h
=
K
+
U
Where
K
is the kinetic energy of the object and
U
is the potential energy of the object. The carriage, sitting motionless at the top of the hill, has only potential energy in the form of gravitational potential energy.
Gravitational potential energy is given by:
U
g
=
m
g
h
Where
m
is the mass of the object,
g
is the gravitational acceleration constant, and
h
is the height of the object above some specific reference point, in this case the ground
21
m
below.
The weight of a stationary object at the surface of the earth is equal to the force of gravity acting on the object.
W
=
→
F
g
=
m
g
We are given that the carriage weighs
12
N
, therefore
m
g
=
12
N
.
U
g
=
12
N
⋅
21
m
⇒
U
g
=
252
N
m
=
252
J
Answer link
Explanation:
