Aproton, with mass 1.67 × 10-27 kg and charge 1.6 × 10-19 c, is sent with velocity 7.1 × 104 m/s in the x direction into a region where there is a uniform electric field of magnitude 730 v/m in the y direction. assume that the magnetic field has no x-component and neglect gravitational effects. what is the magnitude and direction of the uniform magnetic field in the region, if the proton is to pass through undeflected

Why is rain likely when warm, moisture-laden air meets cold air? a) the lighter warm air will rise and cool down, causing condensation and rain. b) the cold air moves faster and pushes the warm air away, causing condensation and rain. c) the moisture in the warm air condenses on contact with the cold air, causing rain to fall. d) the cold air mixes with the warm air, reducing its temperature causing moisture to condense.