Mass of elevator is 1150kg and it’s counterweight is 1000kg. Tension in cord has same magnitude on both sides of pulley. What is the acceleration of the ELEVATOR? What is the tension in the cable?

Aray diagram for a refracted light day is shown. what does the dashed line represent

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.)

What is the energy of a photon of ultraviolet radiation with a frequency of 4.4 × 1015 hz? planck’s constant is 6.63 × 10–34