The skier leaves from point A from rest and slides on the frictionless track AB, then he continues his motion on the track BCD; under the action of a frictionless force of constant magnitude = ; to stop at D. Consider the skier to be a point object during its motion. Given: g = 10 m/s2 .

Two identical small charged spheres are a certain distance apart, and each one initially experiences an electrostatic force of magnitude f due to the other. with time, charge gradually leaks off of both spheres. when each of the spheres has lost half its initial charge, the magnitude of the electrostatic force will be

Ways that industry and agriculture use physical properties to separate substances

Estimate the change in the gibbs energy and molar gibbs energy of 1.0dm3 of octane when the pressure acting on it is increased from 1.0 atm to 100 atm. the mass density of octane is 0.703 g cm−3