Represent graphically a displacement of 40 km,30^@ east of north.

Represent graphically the variation of magnetic field with distance from a long current carrying wire.

Solve graphically 3y - 5x le 30

Represent graphically, the variation of probability density (psi^2 _(r)) as a function of distance (r ) of the electron from the nucleus for 1s and 2s orbitals.

Represent graphically the variations of potential energy, kinetic energy and total energy as a function of position 'y' for a simple harmonic oscillator. Explain the graph.

In simple harmonic motion, force is directly proportional to the displacement for the mean position. Show graphically the variation of kinetic energy and potential energy of a harmonic oscillator.

A motor boat is racing towards North at 25 km/h and the water current has speed 10 km/h in the direction of 60^(@) east of South. Find the resultant velocity of the boat.

A girl walks 4km towards west, then she walks 3 km in a direction 30^@ east of north and stops. Determine the girls displacement from her initial point of departure.

One sees a boat in the sea, on the top of a light house at a depression of 20^circ . After sometimes he sees the boat at a depression of 30^circ . If the height of the lighthouse is 160 meter. What distance will the boat travel during this time? [tan 20=0.3640 , tan 30=0.5774]

From an iron ring of radius 9 centimetres, a piece of central angle 30^(circ) is cut off. This is then bent into a small circle. What is the radius of this circle?