According to kepler's third law, all orbits with the same semimajor axis have the same period. The two orbits in figure 5.4 have the same value for A and thus must have the same P, but how is this possible when the orbits have such different eccentricities?

Adelivery truck leaves a warehouse and travels 2.60 km north. the truck makes a left turn and travels 1.25 km west before making another right turn to travel 1.40 km north to arrive at its destination. what is the magnitude and direction of the truck's displacement from the warehouse?

Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.

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