A2.0 kilogram mass is located 3.0 meters above the surface of earth. what is the magnitude of earth's gravitational field strenght at this location?

When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative

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

Charge is distributed along the entire x-axis with uniform density λ. how much work does the electric field of this charge distribution do on an electron that moves along the y-axis from y = a to y = b? (use the following as necessary: a, b, ε0, λ, and q for the charge on an electron.)