Answer: current = 10.25A
Explanation:
Toward = 240w
Alarm clock = 30w
Tanning bed = 720w
4 60 watts bulb = 60 * 4 = 240w
Total power = 240 + 30 + 720 + 240 = 1230w
Voltage = 120v
Recall that Power = current * voltage
1230 = current * 120
current = 1230/120 = 10.25A
Answer:
Water in an artificial lake held behind a dam
Explanation:
Potential energy is energy that can be converted to kinetic energy, for example, an object at a certain height has potential energy because we can drop the object to have kinetic energy.
Therefore, the best example of potential energy is water in an artificial lake held behind a dam because without the dam, the water will start to move and it becomes the energy into kinetic energy.
Answer:
2795.3 J
Explanation:
distance, d = 28 feet = 8.53 m
Force, F = 80 lb = 356 N
Angle, θ = 23°
Work = F x d x cos θ
W = 356 x 8.53 x cos 23
W = 2795.3 J
Thus, the work done is 2795.3 J.