Your shopping cart has a mass of 65 kilograms. in order to accelerate the shopping cart down an aisle at 0.3m/sec^2 , what force would you need to use or apply to the cart

Which example has gravitational potential energy? a. a horse slowing down from a run b. an apple about to fall from a tree branch c. a bicycle being pedaled down a horizontal path d. beaker sitting on the floor

What is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wavelength of 480 ? the index of refraction of the film is 1.34, and there is air on both sides of the film. express your answer in nanometers. hint 1. how to approach th

Where do magnetic lines of force enter earth?