Answer:
Explanation:
Initial velocity is 0. In the equation v = v0+at where v0 is the initial velocity of 0, we only have to fill in -9.8 for a and 2 for t to get the velocity after 2 seconds -19.6 m/s; after 5 seconds, when it hits the ground, a = -9.8 and t = 5 to give a velocity of -49 m/s. Gravity pulls down everything at the same rate, it doesn't matter whether we drop a feather or an elephant from the window!
Answer:
5.09 x 10⁵ Nm²/C
Explanation:
The electric flux φ through a planar area is defined as the electric field Ε times the component of the area Α perpendicular to the field. i.e
φ = E A
From the question;
E = (8.0j + 2.0k) ✕ 10³ N/C
r = radius of the circular area = 9.0m
A = area of a circle = π r² [Take π = 3.142]
A = 3.142 x 9² = 254.502m²
Now, since the area lies in the x-y plane, only the z-component of the electric field is responsible for the electric flux through the circular area.
Therefore;
φ = (2.0) x 10³ x 254.502
φ = 5.09 x 10⁵ Nm²/C
The electric flux is 5.09 x 10⁵ Nm²/C
With the earth’s current rotation, the major pressure systems of the general circulation can be correlated with the increase and decrease of air. When there is a considerable amount of air, precipitation will become present on a large scale. When there is less air, then there is an increase in chances of an area becoming dry. According to our textbook, a decrease in air on the eastern margin (west coast) creates a subsidence inversion. This causes dry weather. On the western margin (east coast) the humidity in the air rises, condenses and creates rain fall. So if the earth were to rotate in the opposite direction, we could possibly expect weather on the west coast to produce more rain and the weather on the east coastto become dry.
-I hope this helped!
B) All natural radiation is at a level low enough to be safe.
<span>The bacteria is called bacteria pericarditis.
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