An object having a net charge of 25.0 µc is placed in a uniform electric field of 620 n/c directed vertically. what is the mass of this object if it "floats" in the field?

An engineer designs a roller coaster so that a car travels horizontally for 162 ft, then climbs 127 ft at an angle of 31.0° above the horizontal. it then moves 127 ft at an angle of 46.0° below the horizontal. if we take the initial horizontal motion of the car to be along the +x-axis, what is the car's displacement? (give the magnitude of your answer, in ft, to at least four significant figures and give the direction of your answer in degrees counterclockwise from the +x-axis.)

Does anyone have the answers to online physics course plato course physics, semester a v3.0

Find the mass by adding the numbers from the three sliders