About how much of the United States' electricity is produced by nuclear reactors?
2 answers:
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Answer:
4.3 N/m
Explanation:
m = 230 g = 0.230 kg, x = 8.2 cm
in 13 oscillations, time taken = 19 s
In 1 oscillation, time taken = 19 / 13 = 1.46 s
By the use of formula of time period , Let k be the spring constant.
0.054 = 0.230 / k
k = 4.26 N/m
k = 4.3 N/m
Answer:
31.96362 °C
Explanation:
= Mass of air in the room = 947 kg
= Mass of air entering the room = 62.4 kg
= Temperature in the room = 33.2°C
= Temperature air entering the room = 13.2°C
T = Equilibrium temperature
c = Specific heat of air = 1006 J/kg °C
In the case of thermal equilibrium we have the relation
The temperature of thermal equilibrium is 31.96362 °C