Paul is a physicist, observing the movement of a charged particle. The particle is moving in a straight line along the y-axis of an x-y plane. Its initial
velocity was –3 m/s, and its final velocity was 6 m/s. At the end of Paul's
observation, the particle's displacement was 3.75 meters in the positive
direction. How long was Paul observing the particle's motion?

A) 2.5 seconds

B) 5.6 seconds

C) 1.2 seconds

D) 4.2 seconds

Pl help me

The variables for this experiment include mass, volume and the materials in the various balls, as well as their densities. in part iii, you will be investigating the questionable baseball. use the drop-down menus to complete the sentences and identify the independent and dependent variables. in part iii, the independent variable, the one that is intentionally manipulated, is . in part iii, the dependent variable, the one that you measure the response in, is

Adding more pulleys to a system of pulleys needed to lift an object. a. increases the force b. decreases the force c. increases the amount of work d. decreases the amount of work

An open cart is moving along a straight frictionless horizontal track. when rain starts falling vertically into the cart, what happens to the speed of the cart?