mava = (ma+ma) ve + Maya Vous s-ometers i. What is the change of displacement that the object has undergone in the first 25s? (3 Marks) (chansens) ii. What is the acceleration of the object? (2 Marks) There isccelerating sbjea art as 8 mise A 1500 kg train travels east at 25 m/s and collides with 800 kg small car which was initially at rest. The train and small car stick together and move off in one direction. i. What is the velocity of the train and car after the collision? (3 Marks) an accident resulting from Videot impact of a novi ii. Prove by calculating whether the collision is elastic or inelastic. (2 Marks) uestion 3: Two-Dimensional (2D) Motion and Oscillations

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia