Prove 1 lbf= 4.45 N Use these steps: Setting l ftlb equal to acceleration due to gravity. Converting to metric units. Converting from kgm/s2 to N

What is the kinetic energy of a 10-kg bicycle moving at 10 m/s

Which of the following can enter and exit a closed system? a. matter and energy b. neither energy nor matter c. matter but not energy d. enrgy but not matter

Which of the following characteristics of earth's relationship to the sun explains the existence of earth's seasons? choose all that apply. earth has a satellite called the moon, which rotates around earth. earth spins on its axis, completing one rotation each day. earth's axis always points in the same direction relative to the stars. earth's axis is tilted relative to its orbital plane. earth orbits around the sun, completing one orbit each year.