When stepping along a floor, the forces acting on your foot when it meets the floor are
A. friction, your weight, and the normal force.
B. friction and the normal force.
C. your weight and the normal force.
D. all of the above
Answer: B
You might also like to view...
Glass is transparent to light of frequencies that
A. match its natural frequencies. B. are below its natural frequencies. C. both of these D. none of the above
Groundwater
A. can only reach the surface if it is pumped. B. accumulates from water that falls on the land's surface. C. is in porous rock and does not flow. D. has no contaminants.
The tropical disturbances that affect the Atlantic Ocean, Caribbean Sea, and the Americas, mostly form over
A) the Gulf of Mexico. B) western Africa, south of the Sahara Desert. C) the Caribbean Sea. D) the western Atlantic Ocean.
A population would be expected to grow if ________
A) immigration increased and deaths and emigration decreased B) immigration and emigration increased by the same number of organisms C) births decreased by 1% and emigration increased by 8% D) emigration and death rates stayed the same and immigration decreased