Describe one way you can increase the strength of an electromagnet.

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion

Consider an air-filled charged capacitor. how can its capacitance be increased?

Olympic skier tina maze skis down a steep slope that descends at an angle of 30∘ below the horizontal. the coefficient of sliding friction between her skis and the snow is 0.10. i found maze's acceleration which is 4.1 m/s^2. but how do you determine maze's speed 4.0 s after starting?