A proton moves eastward in a region of space where a uniform magnetic field points north and has a magnitude of 5.0 ✕ 10-5 T. What velocity must the proton have for the magnetic force to just cancel the gravitational force?

An electron moves with a constant horizontal velocity of 3.0 × 106 m/s and no initial vertical velocity as it enters a deflector inside a tv tube. the electron strikes the screen after traveling 26 cm horizontally and 19 cm vertically upward with no horizontal acceleration. what is the constant vertical acceleration provided by the deflector? (the effects of gravity can be ignored.)

Hi , i am new here can anyone me out with this question why is space black after having so many shining objects like sun , moon , stars

Why does it dangerous to jump from a moving vehicle?