Draw a schematic diagram of a circuit consisting of a battery of
three cells of 1.5V each, a plug key, a 4Ω resistor, a 6Ω resistor
and an 8Ω resistor all connected in parallel. Connect an ammeter
to measure the current across the 8Ω resistor and a voltmeter
across all three resistors to measure the voltage, what would be
the readings of the ammeter and voltmeter?

Alinearly polarized electromagnetic wave has an average intensity of 196 w/m^2. this wave is directed towards two ideal polarizers (in real polarizers, transmission is also effected by reflection and absorption). polarizer a is oriented with its transmission axis at an angle of θ_1=20.8∘ with the incident electric field. polarizer b has its axis at an angle of θ_2=63.0∘ with the incident electric field. what is the average intensity of the wave after it passes through polarizer a? what is the average intensity of the wave after it passes through polarizer b? suppose that the two polarizers a and b are interchanged. what would the average intensity be after passing through both polarizers?

What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?

How can you increase the strength of an electromagnet?