The reason grooves are rifled into the bore of a gun is so that a: bullet will be made to spin and hence have a true and accurate course on leaving the barrel. bullet moving through will have unique striations. manufacturer can put its unique mark on its product. bullet will be reduced in size before it exits the gun ballistics examiner will have an easier time identifying evidence

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.

the ima (higher than 1m) will be greater than the ima with the height of 1m.

connectedness in handwriting analysis is a useful tool in establishing the writer’s method of thinking and its perception in where he/she fits in to the environment around him in the social sense. in addition, the more connected the writing of an individual, the more he/she is flexible and single minded.