7. If the mass of the rifle in the above problem were 1.6 kg, what speed would it need to have in order to have the same magnitude of friction momentum as the bullet?

answer; ///(74) degrees is your answer..

layer a is the exosphere and layer b is the thermosphere.   is the answer i think but i hope this .

a) electrical > light, sound, and thermal< < < <

) the mechanical energy of the firefighter moving.< < < < a) electrical > light, sound, and thermal< < < <

c) both a and b.

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.