Chet plans an experimental investigation to see how well a new fertilizer works on daises. The fertilizer must be dissolved in water and delivered to the plants by spraying it onto the leaves and stems. To set up his control group for the experiment, Chet should leave out the ?

3. a particle with initial velocity v⃗ 0=(5.85×103m/s)j^ enters a region of uniform electric and magnetic fields. the magnetic field in the region is b⃗ =−(1.35t)k^. you can ignore the weight of the particle. a. calculate the magnitude of the electric field in the region if the particle is to pass through undeflected, for a particle of charge +0.640 nc.