9. Four resistors, of 8 ohms, 6 ohms, 2 ohms and one of unknown resistance, are connected in series. A generator supplies 120 volts across this circuit. The IR-drop across the 6-ohm resistance is 36 volts. (a) What current is flowing in the circuit? (b) What is the total circuit resistance? (C) What ohmic value has the unknown resistor?​

Water at room temperature of 20.0°c is poured into an aluminum cylinder which has graduation markings etched on the inside. the reading in the graduations is 300.0 cc. the cylinder with the water in it is then immersed in a constant temperature bath at a temperature of 100°c. what is the reading for the level of water on the graduations of the cylinder after the water and the cylinder reach thermal equilibrium with the bath? the volume coefficient of expansion of water is 2.07 x 10^-4 k-1, and the linear coefficient of expansion of aluminum is 23.0 x 10^-6 k-1. a) 305.0 cc b) 304.0 cc c) 303.5 cc d) 303.3 cc e) 304.5 cc

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

Positrons are spontaneously emitted from the nuclei of