A60-watt light bulb is connected to a circuit using 120 volts. what is the resistance in the circuit?
a. 7,200 ohms
b. 240 ohms
c. 2 ohms
d. 0.5 ohms

There are a few different formulas for electrical power.  They involve
different combinations of voltage, current, and resistance.

        ==>         Power  =  (current)²  x  (resistance)

        ==>         Power  =  (voltage)²  /  (resistance)

        ==>         Power  =  (voltage)  x  (current) .

In this case right now, we know the power and voltage, and
we need to find the resistance.  So maybe it's a good idea
to use the formula that involves power, voltage and resistance.

        ==>         Power  =  (voltage)²  /  (resistance)

Multiply each side
by  'resistance':          Power x resistance = voltage²

Divide each side
by  'power':                Resistance  =  voltage² / power

                                                 = (120 volts)² / (60 watts)

                                                 =  (14,400 / 60)    volts²/watts

                                                 =      240 ohms  . 

Answer

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

explanation

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force