Adecade before einstein published his theory of relativity, j. j. thomson proposed that the electron might consist of small parts and attributed the electron's mass m to the electric potential energy of the interaction of the parts. furthermore, he suggested that the energy equals mc2, where c is the speed of light. assume the electron is a hollow sphere. make a rough estimate of the electron mass in the following way: assume the electron is composed of three identical parts that are brought in from infinity and placed at the vertices of an equilateral triangle having sides equal to the classical radius of the electron, 2.82 x 10-15 m. find the total electric potential energy of this arrangement.

i would think form in reponse to tensional forces

the design of a ski jumping suit involves a trade-off between giving the skiers lift to get higher jumps and ensuring the skier does not face a lot of drag before the jump itself. an expansive suit may to lift the skier higher, but at the same time, it will also increase the air resistance. higher air resistance as the skier goes down the slope limits the speed of the jump. a big suit also increases the risk of losing balance or control, especially if there's a strong gust of wind. while technologically enhanced suits a lot, clothing is not the only factor in a ski jumper’s success. gathering speed while skiing down the slope, ensuring good speed on the ramp, and maintaining good body posture and form in the air all contribute to a ski jumper's success.