Which of the following is not an example of turbulent flow?
2 a river flowing slowly in a straight line
b. a river flowing swiftly around rocks in rapids
water flowing unevenly from a fully opened faucet
d smoke twisting as it moves upward from a fire
c
Please select the best answer from the choices provided

Asolid cylinder and a cylindrical shell have the same mass, same radius, and turn on frictionless, horizontal axles. the cylindrical shell has light-weight spokes connecting the shell to the axle. a rope is wrapped around each cylinder and tied to blocks of equal masses that are held the same height above the ground. both blocks are released simultaneously. the ropes do not slip. which block hits the ground first? or is it a tie?

Select all the correct answers. which three statements about electromagnetic radiation are true?

An owl dives toward the ground with a constant velocity of 4.40 m/s at 53.0° below the horizontal. the sun is directly overhead and casts a shadow of the owl directly below it. what is the speed (in m/s) of its shadow on level ground?