Determine the following quantities for the circuits shown below: (a) the equivalent resistance
(b) the total current from the power supply
(c) the current through each resistor
(d) the voltage drop across each resistor and
(e) the power dissipated in each resistor.
WILL MARK AS BRAINLIEST!

in a parallel circuit equivalent resistor is,

1/R = 1/20 + 1/100 + 1/50

so 1/R = 5/100 + 1/100 + 2/100

= 8 /100

1/R = 8/100

8R = 100

R = 12.5 ohms

b) v = IR

125 = I × 12.5

I = 125/12.5

I = 10A

c) resistor with 20 ohms

v = ir

125 = 20I

I = 6.25 A

the resistor with 100

125 = 100I

I = 125/100

= 1.25A

the resistor with 50 ohms

125 = 50I

I = 125 /50

2.5A

if u want to make sure all these calculations are crct add them up and see

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

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

c) both a and b.

russian is not my first language, so i'm afraid i can't write out an answer in russian, but hopefully you can find a way to do so. here's my best translation of the problem: you're given a plot of a particle's position in one-dimensional space over time, and you're asked to find either the total distance traveled by the particle after 6 seconds had elapsed, or the total displacement of the particle after 6 seconds.

if you want the total distance traveled, you would first need to determine the particle's velocity as a function of time, then integrate that over the 6-second interval. we know the position function is quadratic with roots at 0 and 6, so we have

where is unknown. because the position is parabolic, there is symmetry about the midpoint at , and we know that

so that the position function is

which means the velocity is

then the total distance traveled is

so the total distance traveled is 20 m.

on the other hand, if you want to find displacement: the particle starts at and ends at , so its displacement is 0.