Physics
Physics, 03.07.2019 22:00, kayloveatae1234

Forces that affect objects without touching them are called field forces. is gravity a field force? explain.

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Chemistry, 22.06.2019 15:30, neariah24
Plz me ! 1 which of earths spheres contains most of its mass? a atmosphere b hydrosphere c geosphere* d biosphere 2 erosion and weathering are examples of which types of forces? a constructive forces b destructive forces* c gravitational forces d inertia-related forces 3 which of the following statements about earths atmosphere is true? a earths atmosphere contains 78% water vapor which is essentail to life b earths atmosphere contains 21% oxygen c earths atmosphere contains carbon dioxide which all life forms require d earths atmosphere allows radiation from the sun to pass through it and warm earths surface* 4 the strenght of the force of gravity between two objects is determined by which of the following factors? select all that apply a the messes of the objects* b the distance between the objects* c the volumes of the objects d the surface area of the objects 5 earth and moon are kept in there respective orbits due to the influence of a inertia b gravity c gravity and inertia* d neither gravity or inertia if you answer all questions right i will give
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Physics, 26.09.2019 21:00, nixki333
A.s.a.p.! will be marked to be as ! 30 ! kennedy and lilly are in science class. they are asked to prove that some forces are non-contact forces. the girls list five examples of objects exerting a force on each other without touching. do you agree with their list? tell why or why not? 1) two like magnetic poles repel each other. 2)putting on a wool sweater can make your hair get static electricity when it rubs against the sweater. 3) when you bring two negatively charged balloons near each other they push each other away. 4) magnets stick to a refrigerator. 5) a motor uses magnets to transform mechanical energy into electrical energy. a)number 1 and 4 are non-contact forces since they both use magnets. b)number 1, 3 and 5 all demonstrate non-contact forces because the magnets or electrically charged objects exert forces on each other without touching. c)all five are good examples of non-contact forces since they all use either magnets or electric charge which are non-contact forces. d)number 1 and 3 are both good examples to prove non-contact forces since the magnets and balloons are not touching.
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Geography, 19.10.2019 21:30, Dragonskeld
1which of earths spheres contains most of its mass? a atmosphere b hydrosphere c geosphere* d biosphere 2 erosion and weathering are examples of which types of forces? a constructive forces b destructive forces* c gravitational forces d inertia-related forces 3 which of the following statements about earths atmosphere is true? a earths atmosphere contains 78% water vapor which is essentail to life b earths atmosphere contains 21% oxygen c earths atmosphere contains carbon dioxide which all life forms require d earths atmosphere allows radiation from the sun to pass through it and warm earths surface* 4 the strenght of the force of gravity between two objects is determined by which of the following factors? select all that apply a the messes of the objects* b the distance between the objects* c the volumes of the objects d the surface area of the objects 5 earth and moon are kept in there respective orbits due to the influence of a inertia b gravity c gravity and inertia* d neither gravity or inertia *= my answer
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