Answer:
The energy used for the 30-day period is 4878000 kilojoules.
Explanation:
According to the power bill, 1355 kilowatt-hours was used over a 30-day period. A kilowatt-hour is equal to 3600 kilojoules. Then, we calculate the energy used, measured in kilojoules, is determined by simple rule of three:
The energy used for the 30-day period is 4878000 kilojoules.
Answer:
The component of waves must have same frequency and phase.
Explanation:
when the component of waves vibrate at the same rate and attain maximum point at the same time, reinforcement of the waves amplitude occur to cause a constructive interference.However, when the two waves are out of phase where one is at minimum when the other is at maximum a destructive interference happens.
Answer:
10.95 minute
Explanation:
V = 120 V, I = 2 A, m = 0.489 kg, c = 4186 J/kgC, T1 = 23 C , T2 = 100 C
Let time be the t.
Heat energy is equal to electrical energy
m x c (T2 - T1) = V x I x t
0.489 x 4186 x (100 - 23) = 120 x 2 x t
t = 656.73 second
t = 10.95 minute
Helix Nebula is a cloud of gases and dust that surrounds a white dwarf.
Thanks hope I am right.
Answer:
A
Explanation:
In 5 minutes, they went 10 miles at both 2, 3, and 4 checkpoints. The bus then starts to speed up.
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