What happens as a river ages? a. its floodplain shrinks. b. it carries more water. c. it gets faster. d. its stream gradient increases.

What type of road surface provides the best friction? a. dirt road b. dry concrete road c. icy road?

The movement of Earth's lithosphere is caused by convection within the ___ layer of the earth.

A group of atoms with aligned magnetic poles are known as which of the following? A. current B. poles C. domains D. fields ... ?

A car goes from 30 m/s to 15 m/s in 5s. What is the value for its acceleration?

A 1,150-kg car moving east at 80 km/h collides head-on with a 1,900-kg car moving west at 40 km/h, and the two cars stick together. It's initial speed is 5km/h. How much KE is lost in the collision?

What two equations can be used to determine the speed of a wave

Which force has an infinite range and is always attractive?

A ramp with a mechanical advantage of 8 lifts objects to a height of 1.5 meters how long is the ramp

Sodium, atomic number 11, forms an ionic bond with an atom of an unknown element. What is one possible choice for the ther element in the compound?

A ship leaves the island of Guam and sails a distance 255 km at an angle 49.0 o north of west. Part A: In which direction must it now head so that its resultant displacement will be 125 km directly east of Guam?