Question: A weight with a mass density L = 4000 kg / m3 hangs in a power meter as shown in the picture. When the weight

A weight with a mass density L = 4000 kg / m3 hangs in a power meter as shown in the picture. When the weight hangs in the air, the force meter shows 0.8 N. What does the force meter show when the weight is immersed in water? The mass density of water is v = 1000 kg / m3 . A: 0.2 N B: 0.4N C: 0.6N D: 1.0N

A person weighing 80 kg is standing on a bathroom scale inside an elevator. The lift starts and increases its speed upwards with constant acceleration from 0 to 2 m / s in 2 seconds. During this time, how much does the bathroom scale show that the person weighs? A: 72 kg B: 80 kg C: 88 kg D: 96 kg

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