8. a thin slice of silicon that contains many solid-state components is a(n) a) transistor b) intergratef circuit c) diode d) cathode-ray tube 9. a current of 6.0 amps passed through a motor that has a resistance of 5.0 ohms. clacukate the power a) 30 watts b) 150 watts c) 180 watts d) 900 watts if you have the answers to the electricity and magnetism unit test i'd really appreciate all of them, i have less than an hour to finish this, yikes.

Three different objects, all with different masses, are initially at rest at the bottom of a set of steps. each step is of uniform height . the mass of each object is a multiple of the base mass : object 1 has mass 4..00m , object 2 has mass 1..96m , and object 3 has mass . when the objects are at the bottom of the steps, define the total gravitational potential energy of the three-object system to be zero. if the objects are then relocated as shown, what is the new total potential energy of the system? each answer requires the numerical coefficient to an algebraic expression. each algebraic expression is given using some combination of the variables , , and , where is the acceleration due to gravity. enter only the numerical coefficient. (example: if the answer is 1..23mgd , just enter 1.23)

What is the equation for electrical work?

Scientific models are based on current knowledge, which can limit their effectiveness when new discoveries are made.