01: A diffraction grating with 4.50 x 30 inom produces a second onder begin 250 to the central maximum. The wwwlength of the incident
A. 2.13 x 10 m
B1.06 x 10"
C4.70 x 10m
D.9.39 x 10m

Q2: Polarization of light can best be explained by considering light to behave as a
A. Photon
B. Quantum
C. Transverse Wave
D. Longitudinal Wave

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.)

How many dots must be added to the symbol to properly represent a standard nitrogen ion? a) 1 b) 3 c) 5 d) 8

In which of the following cases is work being done on an object? question 2 options: pulling a trailer up a hill carrying a box down a corridor suspending a heavy weight with a strong chain pushing against a locked door