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 conclusion can be made based on the temperature of soil when the light hits the soil at 0°, 45°, and 90° angles in section 2 of the experiment? did your results support your hypothesis? why or why not?

Efficiency is the ratio of to for a system a)power in to power in b)power in to power out c) power out to power out d) power out to power in

Asled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slidesa distance d1 down the slope and then covers the distance d2 alongthe horizontal terrain before stopping. find the coefficient ofkinetic friction μk between the sled and the ground, assumingthat it is constant throughout the trip. find the coefficient of kinetic frictionμk. express your answer in terms of someor all of the variables d1, d2, and θ.