On a particular day, Denali had a temperature of -23°C at its peak and 13°C at its base. What could be the reason for this temperature difference? A.
Temperature increases with an increase in altitude.
B.
Temperature decreases with an increase in altitude.
C.
The base is close to the Gulf of Alaska.
D.
The mountain receives lake-effect snow.

A50.0-n box is sliding on a rough horizontal floor, and the only horizontal force acting on it is friction. you observe that at one instant the box is sliding to the right at and that it stops in 2.25 s with uniform acceleration. what magnitude force does friction exert on this box

Aball tossed vertically upward from the ground next to a building passes the bottom of a window 1.8 s after being tossed and passes the top of the window 0.20 s later. the window is 2.0 m high from top to bottom. what was the ball's initial velocity? the unit vector j^ is directed upward. how far is the bottom of the window from the launch position? how high does the ball rise above the launch position?

What is the single most important equation in all of physics?