Answer:
which two statements describe how soil horizons are formed?
Explanation:
A soil horizon is a layer parallel to the soil surface whose physical, chemical and biological characteristics differ from the layers above and beneath. Horizons are defined in many cases by obvious physical features, mainly colour and texture.
Given that,
Puck slide total Deltax = 12m
Puck and board Mk = 0.10
Find the initial speed = ?
We know that,
Vf^2-Vi^2 = 2a Deltax
-Vi^2 = -2MkgDeltax ............(1)
then,
fk = -Mk mg = ma
a = -Mkg .........(2)
From equation (1),
Vi^2 = 2MkgDeltax
Vi = âš2MkgDeltax [g=9.8m/s^2]
Vi = âš2(0.10)(0.98)(12)
Vi = âš0.2(9.8)(12)
Vi = âš1.92(12)
Vi = âš23.52
Vi = 4.8 m/s
Therefore the initial speed of the puck Vi = 4.8 m/s
Because of the gravity on earth, and the momentum they get from spinning around the planet.
You should select a material that has the ability to accept electrical flow.
Answer:
6.67 meters per second
Explanation:
Velocity is defined as the distance covered divided by the time it took to cover that distance. In your case the car traveled 200 meters in 30 seconds therefore its velocity is:
This periodic fraction can be rounded to 6.67 m/s
Now, if they ask you what is the answer in meters per minute, you can give an integer value for your answer simply by using the equivalent of 30 seconds to minutes in the velocity formula: