Answer: C
Explanation:
The forces at play, are gravity (which is pointing down[g]) and air resistance(which is pointing up [R]). The net force is [F] is
F = g + (-R) if we choose down as +tive and up as -tive.
Since the skydiver IS falling, it means g is bigger than F, since gi si responsible for pulling down, and this then confirms that the net force will then be pointing downwards.
Answer:
D) Points down
Explanation:
We can find the direction of the magnetic field produced by each of the wire by using the right hand rule:
- the thumb must correspond to the direction of the current in the wire
- the other fingers wrap around the thumb and gives the direction of the magnetic field lines
For the wire on the right, we have:
- thumb (current): towards you
- other fingers (magnetic field): at the left of the wire, they point down
For the wire on the left, we have:
- thumb (current): away from you
- other fingers (magnetic field): at the right of the wire, they point down
So, both magnetic fields point down at the point halfway between the two wires, so the net field is also pointing down.
A.) All the vector quanties have magnitude(strength) as well as direction. Since force is a vector quantity, it has both strength as well direction.
