Power consumed by the refrigerator is given as
Now if refrigerator is used 10 h a day then total usage of refrigerator for 1 month will be given as
now the total energy consumed in one month is given as
now it is given that cost of one kWh is $0.20
then total cost of one month is given as
Answer:
The Earth is 4.543 billion years old
Catastrophic events are sudden, natural or man-made, situations where change & destruction occur. All catastrophic events are the Earth's way of maintaining equilibrium during change.
Answer:
83,900 J
Explanation:
First, find the acceleration:
F = ma
1150 N = (1600 kg) a
a = 0.719 m/s²
Now find the final velocity.
Given:
Δx = 45.8 m
v₀ = 6.25 m/s
a = 0.719 m/s²
Find: v
v² = v₀² + 2aΔx
v² = (6.25 m/s)² + 2 (0.719 m/s²) (45.8 m)
v = 10.2 m/s
Now find the final KE:
KE = ½ mv²
KE = ½ (1600 kg) (10.2 m/s)²
KE = 83,920 J
Rounded to three significant figures, the final kinetic energy is 83,900 J.
