In the circuit diagram, what does the symbol made of two long lines and two short lines with a positive and a negative sign at each end represents? a) a source of electrical energy b) an electrical conductor c) an electrical resistor d) a closed switch asap. will give brainlist and 20 points

The pressure increases by 1.0 x 104 n/m^2 for every meter of depth beneath the surface of the ocean. at what depth does the volume of a pyrex (bulk modulus 2.6 x 1010n/m^2) glass cube, 9.8 x 10^−2m on an edge at the ocean's surface, decrease by 7.5 x 10−10m^3? explain the formula beyond this point: p=1.0x10^4, b=2.6x10^10, l=9.8x10^−2, delta v=7.5x10^−10. at some point l needs to be cubed. why p is divided by delta v?

How much energy must a refrigerator absorb from 225 g of water so that the temperature of the water will drop from 35°c to 5°c

Sunidhi made a study chart about changes in states of matter. which headings best complete the chart?