Wave speed = (wavelength) x (frequency)
= (45 meters) x (9 per second)
= 405 meters per second .
Wind is caused by differences in the atmospheric pressure. When a difference in atmospheric pressure exists, air moves from the higher to the lower pressure area, resulting in winds of various speeds. On a rotating planet, air will also be deflected by the Coriolis effect, except exactly on the equator.
Well, if i am correct. a substance is:
a particular kind of matter with uniform properties
or...
the real physical matter of which a person or thing consists and which has a tangible, solid presence.
choose which ever you like better:)
It would take at least 20/9 seconds
The coefficient of friction is 0.213
Explanation:
We start by writing the equation of the forces along the directions parallel and perpendicular to the incline. We have:
Perpendicular direction:
(1)
where
N is the normal reaction of the plane
is the component of the weight perpendicular to the plane, with
m is the mass
g = 9.8 m/s^2 the acceleration of gravity
is the angle of the incline
Parallel direction:
(2)
where
:
is the component of the weight parallel to the slope
is the force of friction, where
is the coefficient of friction
N is the normal reaction
a is the acceleration
In this case, the skier is moving at constant speed, so its acceleration is zero and the equation becomes:
(2)
From (1) we find
And substituting into (2)
Solving for ,
Learn more about slope and force of friction here:
brainly.com/question/5884009
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