A student has to perform an experiment on the effect of heat on a particular chemical which can be seen in the form of a color change. Which section of his lab report will include the color change in that chemical?
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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.)

Why don't you see your reflection in water with waves or repples

Which sound characteristic is not affected by the relative motion of an object