HEY CAN ANYONE PLS ANSWER DIS IN UR OWN WORDS

Rule 1: Non-zero numbers are significant

Rule 2: Zeros located between non-zero numbers are significant

Rule 3: Zeros before the first non-zero number are not significant

Rule 4a: Zeros after a non-zero number are significant IF there is a decimal

Rule 4b: Zeros after a non-zero number are not significant IF there is NO decimal

fgravity=10x10=100n case 1

fgravity=30x20=600n case 2

6 times more

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.