7. If a hummingbird hovers 30 cm in front of a window, what will it see?

Which of the following statements correctly describes a transformer?

Which of the following are molecules? a. al b. ag c. mgcl2 d. nacl e. c3h8

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.