A raindrop of radius R = 1.5 mm falling from a cloud at a height of h = 1200 meters above the ground. The drag coefficient C of the drop is 0.60. Assume that the descent is spherical throughout its fall. The density of water is Pw 1000 kg / m3, and the air density is Pa 1.2 kg / m3. If you know that a raindrop reaches its final velocity after falling a few meters. What is the final velocity?

The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.939 w/m^2 . the wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. how much total electromagnetic energy falls on the area during 1.0 minute?

Acar starts from rest at a stop sign and reaches a velocity of 25 m/s w in 4 seconds. determine the acceleration of the car. question 3 options: a) 6,25 m/s2 b)6.25 m/s c)100 m/s2 d)100 m/s

Light from two different sources are incident upon the same side of a polarizing filter. light from one source is polarized with total intensity ip, while light from the other source is unpolarized with total intensity iu. as you rotate the polarizing filter through 360 degrees, the intensity of the transmitted light on the other side varies by a factor of 9. what is the relative intensity of the initial polarized source to the unpolarized source, or ip/iu?