Because almost all of the force is done by the weight of the person and the mechanism of the swing itself, when you push someone you only give them an increase in velocity, the acceleration comes from the weight at first and then from gravity when the person is coming down, which is why we bend our legs when coming down
Answer:
Nuclear energy
Explanation:
The nucleus holds the energy together
City 4 because it is closer to the equator
Answer:
a) I = 0.01029 A
, b) Q = 4074.05 J
Explanation:
a) Let's work in parts, let's start by looking for the energy consumed.
For this we use a rule of three or direct proportions if 1 kWh costs $ 0.09, how much kWh is $ 8.80
Energy = 8.80 / 0.09
Energy = 97,778 kWh
to calculate the current, we must have the energy consumed per second
Let's use a rule of three if 97,778 kWh were consumed in 24 h = 86,400 s how much was consumed in 1 s
E₀ = 97.778 1/86400
E₀ = 1.13168 Ws
the power consumed is
P = E₀ / t
P = 1.13168 / 1
P = 1.13168 W
power is
P = I V
I = P / V
I = 1.13168 / 110
I = 0.01029 A
b) the heat is given by
as the efficiency is 100%
E = P t = Q
Q = 1.131368 3600
Q = 4074.05 J
