Final answer:
Yes, Miranda is on Earth. The weight of an object is determined by its mass and the acceleration due to gravity. In this case, Miranda's weight and mass indicate that she is on Earth.
Step-by-step explanation:
Yes, Miranda is on Earth. The weight of an object is the force exerted on it due to gravity, and it is determined by the mass of the object and the acceleration due to gravity. The weight of an object on Earth is given by the formula W = m * g, where W is the weight, m is the mass, and g is the acceleration due to gravity.
In this case, Miranda has a mass of 40000g (or 40kg) and weighs 740N. So, we can calculate the acceleration due to gravity on Earth using the formula g = W / m.
By substituting the given values, we have g = 740N / 40kg = 18.5m/s². This value matches the approximate acceleration due to gravity on Earth, which is about 9.8m/s².