Please help R1 = 50.0 Ohm and
R2 = 80.0 Ohm. They are
connected in series with a third
resistor, R3, and the total
resistance of the combination is
200 Ohm.
What is the value of R3?
(Unit = Ohm)
No links please

the answer is 70 ohm

Explanation:

let me explain

if R1=50.0 ohm

R2=80.0 ohm

and the total resistance=200 ohm

then R3=the total resistance-(R1+R2)

R3=200-(50.0 + 80.0)=70 ohm

chemical energy --> gravitational potential energy --> kinetic energy --> elastic potential energy --> gravitational potential energy

explanation:

when emma starts the hike, the chemical energy stored in her body is used to climb up the mountain, and so she gains gravitational potential energy (because at the end, she will be at a higher height h above the ground). then she goes bungee jumping: as she falls, this gravitational potential energy is converted into kinetic energy (because her speed increases as she falls down), until the point when the rope stretches, and she stops moving. at that moment, all the kinetic energy is converted into elastic potential energy due to the stretching of the rope. then, this energy is released because the rope returns to its natural length, and emma gains a small increase in altitude , so she gains some gravitational potential energy.

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explanation: