Which factor influences the early detection of a childhood disease by a
physician?
a. whether the child is in school
b. the child's diet
o
o
c. whether the parents can afford health care
o
d. the number of friends the child has

Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied.

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?

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects