Why is banking done in road?

Why soaking of pulses in water is done prior to cooking?

Dipole is placed parallel to the electric field. If W is the work done in rotating the dipole by 60^@ , then work done in rotating it by 180^@ is

To avoid accident of a moving car near a bend,___ force is supplied by banking the road.

Dialysis is done to:

Statement I: If a car is taking a turn on a banked road, then the normal contact force between car and road is greater than the weight of car (neglecting friction). Statement II: On a banked road, horizontal component of normal contact force between car and road provides necessary centripetal force. Assume friction is absent.

Why CaCl_2 is used to melt the ice deposited on road?

What does pressure-volume work mean? Why is it considered that work done by a system is negative but work done on the system is positive?