Aconducting rod of length l = 28.5 cm slides over two horizontal metal bars with a constant speed v to the right through a distance δx in a time δt. the entire set up is in a region of uniform magnetic field of magnitude 1.60 t that is directed perpendicular to the rods and out of the page. if the induced emf has a magnitude of 1.00 v, what is the speed with which the rod moves? what is the direction of the induced current in the resistor r?

After the near spacecraft passed mathilde, on several occasions rocket propellant was expelled to adjust the spacecraft's momentum in order to follow a path that would approach the asteroid eros, the final destination for the mission. after getting close to eros, further small adjustments made the momentum just right to give a circular orbit of radius 45 km (45 × 10^3 m) around the asteroid. so much propellant had been used that the final mass of the spacecraft while in circular orbit around eros was only 545 kg. the spacecraft took 1.04 days to make one complete circular orbit around eros. calculate what the mass of eros must be.

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot

Which lists correctly orders nuclear reactions from most radioactive waste generated to least waste generated within a given period of time? o a. radioactive decay, nuclear fission, nuclear fusion o b. radioactive decay, nuclear fusion, nuclear fission o c. nuclear fusion, nuclear fission, radioactive decay o d. nuclear fission, nuclear fusion, radioactive decay