4. Use the scenario to answer the question. Astronauts on the International Space Station commonly face a health issue that some people on Earth experience as well. Research conducted on this health issue has helped solve problems on Earth.

What is this health issue?

(1 point)

A. Hearing and sight loss
B. Obesity
C. Loss of bone and muscle density
D. Weightlessness

An engineer designs a roller coaster so that a car travels horizontally for 152 ft, then climbs 137 ft at an angle of 34.0° above the horizontal. it then moves 137 ft at an angle of 48.0° 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.)