An object has a mass of 312.8 dg and a volume of 11.4 mL. Wh…

An object has a mass of 312.8 dg and a volume of 11.4 mL. What is its density in g/mL?[response_blankA] NOTE: If an answer needs to be written in scientific notation, use the following format: 1.2×103 should be written as 1.2e3 or 1.2×10^31.2×10-3 should be written as 1.2e-3 or 1.2×10^-3

A 0.250 kg mass moves in a horizontal circle of radius 0.800…

A 0.250 kg mass moves in a horizontal circle of radius 0.800m on a frictionless table. It is attached to a string that passes through a hole in the table; the other end of the string is held so the mass moves at constant speed 3.50m/s. FInd the tension in the string: T = [BLANK-1] N Find the period of the motion: Tperiod = [BLANK-2] s