+
+
position (x 6 m)
+
+
+
0
1
2
7
8
9
3 4 5 6
time (x2)
what is the time represented by the third
tic mark on the horizontal axis?
answer in units of s.
020 (part 2 of 3) 10.0 points
what is the position represented by the fourth
tic mark on the vertical axis?
answer in units of m.
021 (part 3 of 3) 10.0 points
what is the position when t = 6 s?
answer in units of m.

Unpolarized light of intensity i_0=750w/m^2 is incident upon two polarizers. after passing through both polarizers the intensity is i_2=280w/m^2. (a) what is the intensity of the light after it passes through the first polarizer in w/m^2? (b) write an equation for the angle between the polarizers in terms of the initial (i_0) and final (i_2) intensities. (c) find the angle between the polarizers in degrees.

Water is siphoned from a large tank and discharges into the atmosphere through a 50-mm diameter tube. the end of the tube is b = 2.1 m below the tank bottom which is a = 7.4 m deep, and viscous effects are negligible. determine the maximum height h over which the water can be siphoned without cavitation occurring. atmospheric pressure is 101.4 kpa, and the water vapor pressure is 1.79 kpa (absolute)

What is the role of lenses in microscopy?