Tara goes on a camel safari in africa. she travels 5 km north, then 3 km east and 1 km north again. what distance did she cover? what was her displacement?

Distance covered by Tara is 9 km.

Displacement of Tara is 6.71 km.

Explanation:

Distance is the total path length covered by a body. Here, the total path length is the sum of all the distances covered in each directions.

So, total distance is given as:

Distance,

Now, displacement only depends on the initial and final position of the body. Let the initial position of Tara be represented by the origin and the final position be represented by 'C' as shown in figure. Let the north direction be positive y axis and east direction be positive x axis.

Then from the figure, the final position 'C' will be at (3,6).

Therefore, using distance formula between two points, we find the displacement as 'OC' which is given as:

Therefore, the displacement of Tara is 6.71 km.

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

ill do it for 100, also this isnt 80 its 40