A)conversion I think, it is if I'm wrong, sorry
That is False, kids shouldn't pick up heavy weights
Answer:
Explanation:
Using the law of the convervation of energy E:
so:
where is the constant of the spring 1, the compressed of the first spring, is the constant of the second spring and is the compressed of the second spring.
Replacing values, we get:
Solving for :
Explanation:
a) The equivalent resistance for resistors in series is the sum:
R = R₁ + R₂ + R₃
R = 10 Ω + 20 Ω + 30 Ω
R = 60 Ω
b) The resistors are in series, so they have the same current.
I = V/R
I = 12 V / 60 Ω
I = 0.2 A
c) The voltage drop can be found with Ohm's law:
V₁ = I R₁ = (0.2 A) (10 Ω) = 2 V
V₂ = I R₂ = (0.2 A) (20 Ω) = 4 V
V₃ = I R₃ = (0.2 A) (30 Ω) = 6 V
d) The power lost in each resistor is current times voltage drop:
P₁ = I V₁ = (0.2 A) (2 V) = 0.4 W
P₂ = I V₂ = (0.2 A) (4 V) = 0.8 W
P₃ = I V₃ = (0.2 A) (6 V) = 1.2 W