The nucleus of a certain type of uranium atom contains 92 protons and 143 neutrons. What is the total charge of
the nucleus?

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.)

=force × distance a. work b. velocity c. pressure d. momentum

The slope of a velocity time graph over any interval of time gives the during that interval