kevodfx

Hello, I am attmepting to assist my son with his science homework. We have repeatedly struck out on the question I am posting below. I would wait until we could figure it out, but because his homework is automated and will not let him continue until he get's this question correct, we are falling seriously behind. Please point me in the correct direction. Mercury has a mass of 3.30 X 1023 kg. Its radius is 2,440 km. What would the weight (in newtons) of a 25 kg object be on the surface of Mercury? Thank you for your help. Kevin