Ga proton moves at 3.60 105 m/s in the horizontal direction. it enters a uniform vertical electric field with a magnitude of 9.40 103 n/c. ignore any gravitational effects. (a) find the time interval required for the proton to travel 4.00 cm horizontally. ns (b) find its vertical displacement during the time interval in which it travels 4.00 cm horizontally. (indicate direction with the sign of your answer.) mm (c) find the horizontal and vertical components of its velocity after it has traveled 4.00 cm horizontally.

An incident ray through the focal point of a spherical mirror will: reflect through the center of curvature. reflect back through the focal point. reflect parallel to the principle axis. reflect the same direction as the incident ray.

You are a sales representative for a company that makes a new alternate fuel for vehicles. you have prepared a presentation for the environmental engineers to sell your new product. what question do you expect the audience to ask regarding whether the new fuel will cause less damage to the environment? a. do we have to change any parts of the vehicle to use this alternate fuel? b. will the vehicles get better fuel mileage with the alternate fuel? c. how much greenhouse gas does your fuel produce compared with current fuel sources? d. is the alternate fuel more expensive than fossil fuel?

Need people build a dam to create a reservoir that supplies water a nearby city needs. describe two ways this action will likely affect the water cycle in the local environment. (5 points) worth 20 points