Aprojectile is fired vertically from earth's surface with an initial speed v0. neglecting air drag, how far above the surface of earth will it go? (use any variable or symbol stated above along with the following as necessary: me for the mass of the earth, re for the radius of the earth, and g for the gravitational constant.)

When a light bulb shines, it gives off light energy and energy. a. heat b. potential c. chemical d. electrical

Place several e-field sensors at a few points on different equipotential lines, and look at the relationship between the electric field and the equipotential lines. which statement is true? 1-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of higher voltages. 2-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of lower voltages. 3-at any point, the electric field is parallel to the equipotential line at that point.

The friction of the water on a boat produces an acceleration of -10. m/s2. if the boat is traveling at 30. m/s and the motor is shut off, how long it take the boat to slow down to 5.0 m/s?