During takeoff, an airplane climbs with a speed of 130 m/s at an angle of 47 degrees above the horizontal. the speed and direction of the airplane constitute a vector quantity known as the velocity. the sun is shining directly overhead. how fast is the shadow of the plane moving along the ground? (that is, what is the magnitude of the horizontal component of the plane's velocity? )

Aspaceship is designed to support animal life for a multiyear voyage to the outer planets of the solar system. plants will be grown to provide oxygen and to recycle carbon dioxide. since the spaceship will be too far from the sun for photosynthesis, an artificial light source will be needed. 13) what wavelengths of light should be used to maximize plant growth with a minimum of energy expenditure? a) full-spectrum white light b) green light c) a mixture of blue and red light d) uv light