An object near the earth's surface is in a state of free-fall. the object is experiencing a downward force of 170 n. what is the mass of the object?

When an object is under free fall then it means the net force on the object is only due to gravitational attraction force

So here we have

so in order to find mass we can use

here given that net force on the object is

F = 170 N

so the mass of the object must be 17.35 kg

there are no correct statementd on the list of choices you provided.

the working equation for the angular size is the product of the physical size and 360 degrees divided by the product of two pi and distance from earth. the minimum size would be 0.559 degrees while the maximum size would be 0.49 degrees.