A 100 N child slides down a frictionless inclined plane as shown in the figure below. Which one of the following statements is true concerning the normal force that the plane exerts on the child?

An object moves from the position +34m to the position -15m in 15 seconds. what is it's total displacement? what is it's average velocity?

Dao makes a table to identify the variables used in the equations for centripetal acceleration. what quantities belong in cells x and y?

The electric potential v is constant everywhere within a certain region of space. which statement below is true? the choices are: the electric field is also constant (but not zero) within the region. a charged particle placed within the region will experience an electric force. the electric field is zero everywhere within the region. the electric field varies from place to place within the region.