# Posts by shantal

Total # Posts: 4

**Physics**

Find the center of mass of two objects, one of mass M and one of mass m, separated by distance L? At R1 = L * (1 - m/(m+M)) from m and R2 = m * L/(m+M) from M At R1 = L^2 x (1 - m/(m+M)) from m and R2 = m * L^2/(m+M) from M At R1 = m * L/(m+M) from m and R2 = L * (1 - m/(m+M...

**math**

A model of a house is 10 centimeters long. The actual length of the house is 8.5 meters. Which of these options is the scale that is used for the model house?

**maths**

Write the missing digites to make each number sentence true

**3rd grade math**

2,567 309,456 60,780