a person weighs 70 n on the moon, what is the person's mass in kilograms? how much is his weight on earth?​

The acceleration of gravity on the moon’s surface is about 1.62 m/s^2. The weight of 70N there indicates a mass of (70N / 1.62 m/s^2) = about 43.2 kilograms.

The acceleration of gravity on the Earth’s surface is about 9.81 m/s^2. That same mass here would weigh (43.2 kg x 9.81 m/s^2) = about 423.9 N.

The weight on Earth is about (423.9 / 70) =6.06 times the weight on the moon.

That’s because the acceleration of gravity on Earth is about (9.81 / 1.62) = 6.06 times the acceleration of gravity on the moon.

Explanation:

14 days is the half-life of phosphorus-32