27. A student constructed a simple electric circuit where two light bulbs were connected in parallel. The circuit power source was a 6.0-V cell. One of the light bulbs had a resistance of 25 , and the other had a resistance of 50 . What was the combined resistance of the light bulbs in this circuit? A. 75 B. 41 C. 25 D. 17

54

step-by-step explanation:

6x9

a

step-by-step explanation:

answer: x=3 and y=4

step-by-step explanation:

34.5 cm

step-by-step explanation:

generally for a circular segment of angle, θ° and radius r

arc length

= (θ/360) x circumference

= (θ/360) x 2πr

in our case, θ = 60°, π=3.142 and r = 33 cm

substitute into above formula

arc length

= (60/360) x 2(3.142)( 33) = 34.5 cm