The sentences below describe how the Grand Canyon formed. Put them in the correct order from oldest (1) to youngest/most recent (7). The sediments were compressed into sedimentary rocks.

The Colorado River cut down through the sedimentary rock layers to form the Grand Canyon.

There was a shallow ocean that deposited sediments.

Snow melt from the Colorado Rocky Mountains eventually formed the Colorado River.

Pacific ocean crust was pushed under the North American continent to create the Colorado Plateau (a high, flat area).

The mountains eroded down to very low hills.

There were ancient mountains taller than the Himalayan Mountains.

Askydiver weighing 140 lb (including equipment) falls vertically downward from an altitude of 19,000 ft and opens the parachute after 18 s of free fall. assume that the force of air resistance, which is directed opposite to the velocity, is of magnitude 0.55|v| when the parachute is closed and is of magnitude 14|v| when the parachute is open, where the velocity v is measured in ft/s. assume that acceleration due to gravity has magnitude 32 ft/s/s; remember that weight is the product of mass and gravitational acceleration. (a) find the speed of the skydiver when the parachute opens. (b) find the distance fallen before the parachute opens. (c) what is the limiting velocity vl after the parachute opens? (d) determine how long the sky diver is in the air after the parachute opens. (e) plot the graph of velocity versus time from the beginning of the fall until the skydiver reaches the ground.

Rohit is trying to tune an instrument

How would a small bar magnet be oriented when placed at position x?