How many turns are needed in a solenoid of radius 10 cm and length 20 cm for its self-inductance to be 6.0 H? A) 30
B) 74
C) 500
D) 550
E) 5500

Why are some galaxies’ spectra blueshifted rather than redshifted? question 4 options:

Does any one know what real love is and would anyone be willing to share it with me?

The pressure, volume, and temperature of a mole of an ideal gas are related by the equation pv = 8.31t, where p is measured in kilopascals, v in liters, and t in kelvins. use differentials to find the approximate change in the pressure if the volume increases from 14 l to 14.6 l and the temperature decreases from 375 k to 370 k. (round the answer to two decimal places.)