1 Silver solder is an alloy of silver, copper, and sometimes a little zinc. 2  It comes in three main grades-Hard, Medium, and Easy. 3  Hard melts at the highest temperature, Easy at the lowest. 4  For this Instructable, I used Medium as my torch is a bit small to melt Hard very quickly.
From these two formulas we can see that if the speed doubles, then the kinetic energy of an object becomes four times larger. Lets see an example: A car has a speed of 4 metres per second. Its kinetic energy is KE=1/2mass by speed squared, so its KE=1/2mass by 16 (since the square of 4 is 16). If the speed doubles and the car does 8 metres per second, its kinetic energy is: KE=1/2mass by 64 (since 8 squared gives us 64). If we divide 64/16 its 4. So we see that when speed doubles, the Kinetic Energy of an object becomes four times larger. Answer: Speed is distance over time (V=x/t).
In classical mechanics, the kinetic energy of a non-rotating object of mass m traveling at a speed v is. In relativistic mechanics, this is a good approximation only when v is much less than the speed of light. The standard unit of kinetic energy is the joule.