B) force equals mass times acceleration. C) kinetic energy transforms into potential energy. D) work input equals work output. E) total momentum before a collision equals total momentum after the collision. 19) If you lift one load up two stories, ...
Force is mass times acceleration: F=ma. If you apply a force over atimeyou get momentum and if you apply force over adistanceyou get energy. Acceleration times time is velocity, so it should more-or-less make sense that force times time is momentum: . What’s a lot less obvious is e...
Mass is measured in grams, acceleration is measured in meters per second squared, and distance is measured in meters. Force is equal to mass times acceleration, and work is equal to force times distance. What is the unit of work?
(Potential Energy equals Mass of object timesgtimes Height above ground) In this case the ball weighs 0.5 kilograms (kg). Clayton is holding it 2 meters (m) above the ground. The acceleration caused by the force of gravity on earth is always 9.8 meters per second squared (m/s^2). So...
The net work on a system equals the change in the quantity 12mv212mv2. Wnet=12mv2−12mv20Wnet=12mv2−12mv02The quantity 12mv212mv2 in the work-energy theorem is defined to be the translational kinetic energy (KE) of a mass m moving at a speed v. (Translational kinetic energy is...
I prefer, if the norm of the 4-momentum always equals to the "invariant mass" m, for tardyons, photons and for (hypothetical) tachyons. Tachyons have an imaginary m and a real energy γ∗m. [Edit: Deleted last (wrong) sentence, that PAllen cited.] Last edited: Oct 2, 2...
The change in gravitational potential energy, ΔPEg, is ΔPEg = mgh, with h being the increase in height and g the acceleration due to gravity. The gravitational potential energy of an object near Earth’s surface is due to its position in the mass-Earth system. Only differences in gravita...
Metabolic Equivalent of Task, where 1 MET at rest (e.g. sitting) equals 1 Kcal/kg/h. DOI link: https://doi.org/10.4121/12716081. Body-Mass Index, the body mass divided by the square of the body height. https://youtu.be/jvx5FGhqPxw. COSMED uses a slightly different estimation (unk...
and the degree of freedom for every tested parameter equals DP=N− 1. The variance of the parameter tested is VP= SSP/DP. TheF-value for every design parameter is simply the ratio of the mean of squares deviations to the mean of the squared error FP= VP/Ve. The percentage contribu...
How much energy is required to accelerate a spaceship with a rest mass of {eq}132 {/eq} metric tons to a speed of {eq}0.559\ C {/eq}? IRelativistic Energy: For objects moving at high speeds v, relativistic effect must be taken into account...