(a) Define the ohm. (b) Wires are used to connect a battery of negligible internal resistance to a lamp,

Question 19 (a)  Define the  ohm . [1] (b)  Wires are used to connect a battery… Read more (a) Define the ohm. (b) Wires are used to connect a battery of negligible internal resistance to a lamp,

A bullet of mass 2.0 g is fired horizontally into a block of wood of mass 600 g. The block is

Q#43 A bullet of mass 2.0 g is fired horizontally into a block of wood of mass … Read more A bullet of mass 2.0 g is fired horizontally into a block of wood of mass 600 g. The block is

An electron is travelling in a vacuum at a speed of 3.4 × 107 m s-1. The electron

Q#17 An electron is travelling in a vacuum at a speed of 3.4 × 10 7   m s -1 . … Read more An electron is travelling in a vacuum at a speed of 3.4 × 107 m s-1. The electron

A metal ball of mass 40 g falls vertically onto a spring, as shown in Fig. 4.1.

Q#17 A metal ball of mass 40 g falls vertically onto a spring, as shown in Fig.… Read more A metal ball of mass 40 g falls vertically onto a spring, as shown in Fig. 4.1.

A hot-air balloon is moving vertically upwards with a constant speed of 3.00 m s-1.

Q#37 A hot-air balloon is moving vertically upwards with a constant speed of 3.… Read more A hot-air balloon is moving vertically upwards with a constant speed of 3.00 m s-1.

A boy throws a stone with a horizontal velocity of 10 m s-1 from the top of a building.

Q#38 A boy throws a stone with a horizontal velocity of 10 m s -1   from the to… Read more A boy throws a stone with a horizontal velocity of 10 m s-1 from the top of a building.

Four cuboids with identical length, breadth and height are immersed in water.

Q#46 Four cuboids with identical length, breadth and height are immersed in wat… Read more Four cuboids with identical length, breadth and height are immersed in water.