<span>C. The mass of box A is one–third the mass of box B.</span>
Answer:
72 volts.
Explanation:
To solve this, we have to use the Ohm's law.
The ohm's law tells us that the voltage drop of a resistor is directly proportional to the current applied to the conductor.
in this case the current is 1.8 amps and the resistor is 40 ohm
so
.
W=mxg is derived by f=mxa
where f-force
m=mass
a=acceleration
due to gravity when the object fall down due to gravity it becomes f=mxg
as we need to find the weight of the object we need put w (weight) in the place of f (force) so it become
w=mxg