- the earth mass is clicked as a picture at up
Joe was asked to describe the movements the Earth makes as it rotates on its axis and revolves around the sur
2 answers:
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Answer:
1.35m
Explanation:
At the highest point of the jump, the vertical speed of the skier should be 0. So the 13m/s speed is horizontal, this speed stays the same from the jumping point to the highest point. The 14m/s speed at jumping point is the combination of both vertical and horizontal speeds.
The vertical speed at the jumping point can be computed:
When the skier jumps to the its potential energy is converted to kinetic energy:
where m is the skier mass and h is the vertical distance traveled, is the vertical velocity at jumping point, and h is the highest point.
Let g = 10m/s2
We can divide both sides of the equation by m:
The currents in the wires are in opposite directions.
- Two long parallel wires separated by a distance 'r' having current
and
have force per unit length which is given by
.....(1) where
is permittivity of free space whose value is
.
If the current flowing through the wire are in same direction then they the wire attract each other and if the current flowing through the wire are opposite in direction then they the wire repel each other .
As it is given that two wires repel each other which means that current in the wires are in opposite direction .
Hence current flowing through wires are opposite in direction.
Learn more about force per unit length here :
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