5) students use a balance to determine the mass of a marble is 7.5 grams. a graduated bottle contains 10.0 milliliters of water. when the marble is carefully lowered into the graduated bottle and is completely covered with water the volume of the water containing the marble has increased to 12.5 milliliters. find the density of the marble. a) 0.3 g ml b) 3.0 g ml c) 7.5 g ml d) 12.5 g ml

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?

Which type of basaltic lava flow has a fairly smooth

** urgent** the voltage across the primary winding is 350,000 v, and the voltage across the secondary winding is 17,500 v. if the secondary winding has 600 coils, how many coils are in the primary winding? a- 30 coilsb- 583 coilsc- 12,000 coilsd- 332,500 coils