Question 18 of 25 4 Points
A boat of mass 450 kg drifts along a river at a speed of 10 m/s to the north.
What impulse is required to decrease the speed of the boat to 6 m/s to the
north?
O A. 2700 kg•m/s north
O B. 2700 kg-m/s south
O C. 1800 kgm/s south
O D. 1800 kg-m/s north
SUBMIT

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?

If the specific heat of a metal is 0.850 j/g °c, what is its atomic weight?

Awaiver with a period of 0.008 second has a frequency of a. 800hz. b. 80hz. c. 125hz. d. 12.5hz.