A box initially at rest on a level floor is being acted upon by a variable horizontal force, as shown in the
diagram at the right. Compared to the force
to keep it moving at constant speed is
-less
Explain furthermore why

The speed of light in a material is 0.50 c. what is the critical angle of a light ray at the interface between the material and a vacuum?

Listed below are the measured radiation absorption rates (in w/kg) corresponding to 11 cell phones. use the given data to construct a boxplot and identify the 5-number summary. 1.16 0.85 0.69 0.75 0.95 0.93 1.18 1.17 1.42 0.54 0.57 the 5-number summary is nothing, nothing, nothing, nothing, and nothing, all in w/kg. (use ascending order. type integers or decimals. do not round.)

Describe the work performed by a ski lift in terms of kinetic and gravitational potential energy