Which of the following is a way in which earth material is returned to the surface?

What load could be lifted by a 5 m long lever with a fulcrum 2m from the load if the effort is 30 N? 75 N 12 N 45 N 20 N

Just as a skydiver steps out of the helicopter, someone who's watching starts a stopwatch. so the time is zero as the skydiver steps out of the plane. what is the skydivers downward velocity at that instant, just before starting to fall

What is a non-example of an inverse relationship

List inner planets and outer planets

A positively charged insulating rod is brought close to an object that is suspended by a string. If the object is attracted toward the rod we can conclude: a. the object is positively charged b. the object is negatively charged c.

What is the simplest relationship between the angular wavenumber k and just one of the other kinematic variables? Express your answer using only one of the other kinematic variables plus constants like π.

The pilot of an airplane notes that the compass indicates heading west. The airplane's speed relative to the air is 100 km/h. The air is moving in a wind at 25.0 km/h toward the north.

How do you get a resultant factor? A. Add two or more vectors B. Add two scalars C. Multiply two scalars D. Multiply two vectors

A panpipe is made of five pipes. The longest pipe is 25 centimeters long and the shortest is 5 centimeters long. Which of these pipe produces the highest-frequency sound and why?

Model rocket A is launched at an angle of 70° above the x axis, with an initial velocity of 40 m/s. An identical rocket B is launched under the same conditions at an angle of 90° above the x axis, also with an initial velocity of 40 m/s.