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- https://phys.libretexts.org/Courses/Joliet_Junior_College/Physics_201_-_Fall_2019v2/Book%3A_Custom_Physics_textbook_for_JJC/06%3A_The_Laws_of_Motion/6.12%3A_Mass_and_WeightCareful distinctions must be made between free fall and weightlessness using the definition of weight as force due to gravity acting on an object of a certain mass. Some upward resistance force from t...Careful distinctions must be made between free fall and weightlessness using the definition of weight as force due to gravity acting on an object of a certain mass. Some upward resistance force from the air acts on all falling objects on Earth, so they can never truly be in free fall.
- https://phys.libretexts.org/Courses/Coalinga_College/Physical_Science_for_Educators_(CID%3A_PHYS_14)/10%3A_Forces/10.02%3A_WeightThe gravitational force of the moon is one-sixth the magnitude of the gravitational force of the Earth; the weight of the moon rock on the moon will be one-sixth the weight of the moon rock on the Ear...The gravitational force of the moon is one-sixth the magnitude of the gravitational force of the Earth; the weight of the moon rock on the moon will be one-sixth the weight of the moon rock on the Earth’s surface.
- https://phys.libretexts.org/Courses/Coalinga_College/Physical_Science_for_Educators_(CID%3A_PHYS_14)/10%3A_Forces/10.06%3A_Normal_Force_and_TensionThe arrows are approximately correct for when the elevator is accelerating upward—broken arrows represent forces too large to be drawn to scale. →T is the tension in the s...The arrows are approximately correct for when the elevator is accelerating upward—broken arrows represent forces too large to be drawn to scale. →T is the tension in the supporting cable, →w is the weight of the person, →ws is the weight of the scale, →we is the weight of the elevator, →Fs is the force of the scale o…
- https://phys.libretexts.org/Courses/Prince_Georges_Community_College/General_Physics_I%3A_Classical_Mechanics/05%3A_Units/5.02%3A_SI_UnitsThere are four other SI base units, though: the ampere (A) (the base unit of electric current); the kelvin (K) (the base unit of temperature); the candela (cd) (the base unit of luminous intensity, or...There are four other SI base units, though: the ampere (A) (the base unit of electric current); the kelvin (K) (the base unit of temperature); the candela (cd) (the base unit of luminous intensity, or light brightness); and the mole (mol) (the base unit of amount of substance).
- https://phys.libretexts.org/Bookshelves/University_Physics/University_Physics_(OpenStax)/Book%3A_University_Physics_I_-_Mechanics_Sound_Oscillations_and_Waves_(OpenStax)/05%3A_Newton's_Laws_of_Motion/5.05%3A_Mass_and_WeightCareful distinctions must be made between free fall and weightlessness using the definition of weight as force due to gravity acting on an object of a certain mass. Some upward resistance force from t...Careful distinctions must be made between free fall and weightlessness using the definition of weight as force due to gravity acting on an object of a certain mass. Some upward resistance force from the air acts on all falling objects on Earth, so they can never truly be in free fall.
- https://phys.libretexts.org/Courses/Coalinga_College/Physical_Science_for_Educators_(CID%3A_PHYS_14)/10%3A_Forces/10.03%3A_Connecting_Newton's_First_and_Second_LawsThe magnitude of the acceleration is inversely proportional to the mass of the object; the more massive the object, the smaller the acceleration produced by the same force. After a rocket ship going f...The magnitude of the acceleration is inversely proportional to the mass of the object; the more massive the object, the smaller the acceleration produced by the same force. After a rocket ship going from the Earth to the moon leaves the gravitational pull of the Earth, it can shut off its engine and the ship will continue on to the moon due to the gravitational pull of the moon.
- https://phys.libretexts.org/Courses/Joliet_Junior_College/Physics_201_-_Fall_2019v2/Book%3A_Custom_Physics_textbook_for_JJC/07%3A_Applications_of_Newton/7.15%3A_Newtons_Law_of_Universal_GravitationObjects with mass feel an attractive force that is proportional to their masses and inversely proportional to the square of the distance.
- https://phys.libretexts.org/Courses/Joliet_Junior_College/Physics_201_-_Fall_2019/Book%3A_Physics_(Boundless)/6%3A_Applications_of_Newton/6.15%3A_Newtons_Law_of_Universal_GravitationObjects with mass feel an attractive force that is proportional to their masses and inversely proportional to the square of the distance.
- https://phys.libretexts.org/Bookshelves/University_Physics/Physics_(Boundless)/5%3A_Uniform_Circular_Motion_and_Gravitation/5.5%3A_Newtons_Law_of_Universal_GravitationObjects with mass feel an attractive force that is proportional to their masses and inversely proportional to the square of the distance.
- https://phys.libretexts.org/Courses/Joliet_Junior_College/Physics_201_-_Fall_2019/Book%3A_Physics_(Boundless)/05%3A_The_Laws_of_Motion/5.12%3A_Mass_and_WeightCareful distinctions must be made between free fall and weightlessness using the definition of weight as force due to gravity acting on an object of a certain mass. Some upward resistance force from t...Careful distinctions must be made between free fall and weightlessness using the definition of weight as force due to gravity acting on an object of a certain mass. Some upward resistance force from the air acts on all falling objects on Earth, so they can never truly be in free fall.
- https://phys.libretexts.org/Courses/Prince_Georges_Community_College/PHY_1030%3A_General_Physics_I/05%3A_Uniform_Circular_Motion_and_Gravitation/5.5%3A_Newtons_Law_of_Universal_GravitationObjects with mass feel an attractive force that is proportional to their masses and inversely proportional to the square of the distance.
