In the steady state 1.2 ✕ 1018 electrons per second enter bulb 1. there are 6.3 ✕ 1028 mobile electrons per cubic meter in tungsten. the cross-sectional area of the tungsten filament in bulb 1 is 1.3 ✕ 10-8 m2. the electron mobility in hot tungsten is 1.2 ✕ 10-4 (m/s)/(n/c). calculate the magnitude of the electric field inside the tungsten filament in bulb 3.

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

Since the investigative question has two variables, you need to focus on each one separately. thinking only about the first part of the question, mass, what might be a hypothesis that would illustrate the relationship between mass and kinetic energy? use the format of "if…then…because…” when writing your hypothesis.

Heena wants to measure the volume of a ball that is 24 cm across. how should she set up her equation?