Answer:
Tectonic Plate Movement
Explanation:
Each continent and ocean sits on its own tectonic plate which floats on the Earths upper mantle. They move very little over time.
Answer:
Explanation:
Given
Diameter 
radius 
From diagram, at top point
If Normal force is equal to Gravitational force
where N=normal reaction
m=mass of car
Normal reaction will provide centripetal force
thus
-- below the horizon
-- clear sky
Answer:
Points downward, and its magnitude is 9.8 m/s^2
Explanation:
The motion of a projectile consists of two independent motions:
- A uniform horizontal motion, with constant velocity and zero acceleration. In fact, there are no forces acting on the projectile along the horizontal direction (if we neglect air resistance), so the acceleration along this direction is zero.
- A vertical motion, with constant acceleration g = 9.8 m/s^2 towards the ground (downward), due to the presence of gravity wich "pulls" the projectile downward.
The total acceleration of the projectile is given by the resultant of the horizontal and vertical components of the acceleration. But we said that the horizontal component is zero, therefore the total acceleration corresponds just to its vertical component, therefore it is a vector with magnitude 9.8 m/s^2 which points downward.
The statement that is true for the motion of sliding the object on the table is : its independent of all forces acting on the object
The only thing that it depend on is the forces acting along both the x-axis and the y-axis.
hope this helps
