Let f(s)=1.1s+0.03s2 represent the stopping distance (in feet) of a car travelling at s miles per hour. calculate f(60) and estimate the increase in stopping distance if speed is increased from 60 to 61. compare your estimate with the actual increase. f(60)= feet estimated increase in stopping distance: feet actual increase in stopping distance.

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

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

c) both a and b.

the answer is the first electromagnet (a). this is because it has more coils around the ferromagnetic material. increasing the number of coils increases the surface area in which the metal interacts with the current in the coil. this enables more atoms in the metal to become aligned hence becoming more magnetized.