Awoman bowls a bowling ball with initial speed v. the ball rolls up a steep ramp, comes to a stop, and then rolls back to the woman's position. assuming that the force of friction on the ball is small but significant, with what speed is the ball traveling when it returns to the woman?

a speed slightly less than v

a speed slightly greater than v

a speed exactly equal to v

a speed close to zero

Astronomers studying the planet of rhombus have detected sedimentary rock on its surface. one astronomer wonders if material in this sedimentary rock used to be in igneous rock deep in rhombus’s interior. can igneous rock become sedimentary rock? explain your answer.

Certain bacteria (such as aquaspirillum magnetotacticum) tend to swim toward the earth’s geographic north pole because they contain tiny particles, called magnetosomes, that are sensitive to a magnetic field. if a transmission line carrying 100 a is laid underwater, at what range of distances would the magnetic field from this line be great enough to interfere with the migration of these bacteria? (assume that a field less than 5% of the earth’s field would have little effect on the bacteria. take the earth’s field to be 5.0 * 10-5 t, and ignore the effects of the seawater.)

What energy transformations occur each time the skateboarder rolls up the ramp?