An incompressible liquid is flowing with a velocity of 1.4 m/s through a tube that sud-
denly narrows (there is no change in height)
and increases its velocity to 3.2 m/s. What
is the difference in pressure between the wide
and narrow ends of the tube?
Assume that the density of the liquid is
1065 kg/m3
Answer in units of Pa.

What type of light does this light bulb produce most (i.e. at what wavelength does the spectrum have maximum intensity)?

Unpolarized light whose intensity is 1.19 w/ is incident on a polarizer. (a) what is the intensity of the light leaving the polarizer? (b) if the analyzer is set at an angle of = 41.0∘ with respect to the polarizer, what is the intensity of the light that reaches the photocell?

When a bicycle coasts uphill, it moves slower and slower as it climbs. why? a. its kinetic energy is transforming into heat energy. b. its potential energy is transforming into kinetic energy. c. its kinetic energy is transforming into potential energy and heat energy. d. its potential energy is transforming into kinetic energy and heat energy.