Find the value of T1 if 1 = 30°, 2 = 60°, and the weight of the object is 139.3 newtons. A. 69.58 newtons

B. 45.05 newtons

C. 25 newtons

D. 98.26 newtons

How would you place two electrons on a sphere of radius r so that the electrostatic potential energy is minimized. how would you place three electrons to solve the same problem.

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.)

Why is metal often used for cooking pan?