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).
P = m X v = mv. Now, kinetic energy of a moving body is given as half of the product of its mass and square of its velocity. K.E = Â½ m X vÂ² = Â½ mvÂ². It is clear that both momentum and energy of a moving body are dependent upon its velocity. You double the velocity and you double the momentum of the body. But doubling the velocity quadruples the kinetic energy of the moving body.