In an electric toaster, electricity passes through thin metal wires (called filaments) inside the toaster, causing the wires to glow and heat up. the heat given off by the filaments then toasts the bread. if 500 kilojoules of electricity are supplied to a toaster, which choice below could represent the total amount of heat energy given off by the filaments of the toaster? a. 505 kilojoules b. 630 kilojoules c. 520 kilojoules d. 480 kilojoules

the rearrangement of particles in a physical change. hope this

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.