11) Define resultant velocity. Two velocities 10 and 15 ms -1 are inclined at an angle of 60° to each other, obtain the resultant velocity: (i) by graphical method (ii) by analytical method. 12) A man can row a boat at 4 kmhr-1 in still water. He rows the boat 2 km upstream and 2 km back to his starting place in 2 hours. How fast is the stream flowing? 13) State the parallelogram law of velocities. A plane is headed north with a velocity of 400 kmhr-1 and a west wind is blowing at 70 kmhr-1. Find the distance of the plane from its base in 2 hours.

Which of these describe conduction transfer of heat between two objects that are touching transfer of heat by the actual movement of war matter the process in which energy is imitated by one of the object transmitted through space and absorbed by another a process in which energy is released by the molecules breaking apart

There are weak or strong attractive forces between atoms of liquids with a high viscosity

Amass attached to a spring is displaced from its equilibrium position by 5cm and released. the system then oscillates in simple harmonic motion with a period of 1s. if that same mass–spring system is displaced from equilibrium by 10cm instead, what will its period be in this case? a mass attached to a spring is displaced from its equilibrium position by and released. the system then oscillates in simple harmonic motion with a period of . if that same mass–spring system is displaced from equilibrium by instead, what will its period be in this case? a) 0.5sb) 2sc) 1sd) 1.4s