2. Uma partícula de 3 kg parte do repouso em x=0 e se move sob a acção de uma única força (SI). Calcule a) o trabalho da força quando a partícula se desloca de x= 0 até x = 3m b)a potência proporcionada à partícula no ponto x

The act of moving from one place to another. a. locomotor b. aerobic c. stationary d. static

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.

An charge with mass m and charge q is emitted from the origin, (x,y)=(0,0). a large, flat screen is located at x=l. there is a target on the screen at y position y(h), where y(h) > 0. in this problem, you will examine two different ways that the charge might hit the target. ignore gravity in this problem. 1.assume that the charge is emitted with velocity v(0) in the positive x direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive y direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l. 2.now assume that the charge is emitted with velocity v(0) in the positive y direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive x direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l.