The astronaut undertakes a Moon landing. on the moon the gravitational field strength is 1.6N/kg. State the astronaut mass on the moon ​

What is the mass of the same rock on the earth

An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg.how much energy e must be supplied to the device? express your answer in joules.

How does an observation about an object differ from an inference about that object