Why is the distance calculation multiplied by one half in this …
2010年6月24日 · [tex]x = x_0 + v_0t + \dfrac{1}{2}at^2[/tex] If you just set the initial position and velocity equal to zero, this reduces to the equation you cited. So you can see that the factor of …
What Is the Meaning of One Half? - Physics Forums
2011年6月10日 · I was sleeping and I was thinking about this question last night and I cuoldn't sleep at all. What is one half? at first I thought it meant 1/2, but then I thought "hey, one, half. I …
Can anybody explain the formula for Kinetic Energy? - Physics …
2007年6月16日 · I have always plugged numbers into the following forumula: KE = 1/2m*v^2 and it works perfectly. :biggrin: I don't understand why. :blushing: Can anybody please tell me why …
Why is kinetic energy 1/2 mv^2? - Physics Forums
2013年5月12日 · The latter half of the 18th century gradually developed the idea that heat was a "type" of "vis viva"/(kinetic) energy, and that the energy of the system was therefore a truly …
Carbon Dating and Half-Life: Calculating the Age of Ancient Objects
2005年7月13日 · Originally there was 32 grams, after 1 half life (6000 years), 16 grams, then another 600 year later, 8 grams left, ... This process works like exponential decay, original …
Electric Flux through half a cylinder - Physics Forums
2017年2月6日 · In (Figure 1) take the half-cylinder's radius and length to be 3.4 cm and 15 cm, respectively. If the electric field has magnitude 5.3 kN/C, find the flux through the open half …
Understanding Mgh = 1/2mv^2: Conditions for Equal and …
2006年9月29日 · according to COE, (initial)PE + KE = PE + KE(final) so i think that its better to use this instead of your equation.For example,if the object were to be released with some …
High energy tritons - Physics Forums
2025年2月15日 · What I did not spell out but assumed implied: the mass of t≈3 GeV (to the same approximation that half-life at rest frame is approximately 12 y), so in an observer frame where …
Why is kinetic energy 1/2mv^2 instead of mv^2? - Physics Forums
2009年3月26日 · The definition of joules, th unit of energy is the 1 J = 1 kg * m 2 /v 2. And that 1 joules is the amount of energy needed for the work done by one Newton traveling one meter. …
A block dropping onto a spring system | Page 2 - Physics Forums
2025年2月13日 · The ##2k_1## is the spring constant of each half of the longer spring. One of those halves is compressed by x and the other by y so the total energy stored in that spring is …