Polarized light of intensity 1.0 × 103 w m2 travels in the +ˆx direction. the polarization direction of the incident light is ±yˆ. the light is incident on two polarizers. the first polarizer light reaches has its transmission axis oriented in the +ˆz direction and the second polarizer has its axis oriented in the yˆ + ˆz direction. compute the intensity of the light transmitted through both polarizers. select one of the following:
(a) 0
(b) 280 w m2
(c) 530 w m2
(d) 720 w m2

Assuming weightless pulleys and 100% efficiency, what is the minimum input force required to lift a 120 n weight using a single fixed pulley?

What are the theoretical properties of a gas at a temperature of 0 kelvin?

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 2 options: the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the cold balloon expands and rises. the warm balloon shrinks and sinks. the warm balloon expands and rises. the cold balloon shrinks and sinks.