Another physics question, this one about Net Force and Weight, once again I'm a Sophmore "If Simba weighs 687 N on Earth, what is his mass?"

And these are the answers
a) 70.0kg
b) 677kg
c) 687kg
d) 6.74 x 10^3 kg

What is the rate of 12 liters of water moving through a water hose in 4.0 minutes?

Question part points submissions used suppose that 2 j of work is needed to stretch a spring from its natural length of 26 cm to a length of 36 cm. (a) how much work is needed to stretch the spring from 28 cm to 32 cm? (round your answer to two decimal places.)

Which of the following is the best name for mgcl2