Biology

Biology, 06.10.2019 07:00, angelcamacho0219

Anon-contact force that causes objects with mass to be attracted toward one another is? ?

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Chemistry, 22.06.2019 14:30, srutkowske1489

Is a pencil falling to the floor anon contact force, a force, or a contact force

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Physics, 28.06.2019 17:40, leo4687

1. joseph is conducting an investigation on how two objects compare in mass, volume, and force with each other. when determining the gravitational force between two objects, which of the following characteristics of the objects should be considered? a mass b volume c state of matter d shape 2. any electrically charged object creates an electric field. walking across carpet in wool socks can create an electric charge. this observation is evidence for which characteristics of electrical forces? a they generate electricity by contact. b they can be generated by electricity. c they can exert a force across a distance. d they are moving due to magnetism. 3. the strength of the gravitational attraction depends on the mass of the objects involved and on the distance between them. the gravitational force between two objects will be lowest in which of the following situations? a both objects have small masses and are close together. b one object has a large mass, and the objects are close together. c both objects have large masses and are close together. d both objects have small masses, and they are far apart. 4. jasmine is conducting an investigation and moves a magnet near a compass, causing the compass needle to move. however, the magnet never touched the compass. this observation is evidence for which characteristics of magnetic fields? a they have a north pole and a south pole. b they can be generated by electricity. c they can exert a force across a distance. d they are constantly changing direction. 6. gabriel is investigating the forces that result from contact. all of the following are types of contact forces, except which of the following? a electrostatic force b air resistance c spring compression d friction force 8. elizabeth and benjamin are investigating the forces that result from electric charges. they rub inflated balloons with wool cloth. which of the following observations supports the claim that the balloons have the same electric charge? a not all the balloons were rubbed with wool. b the balloons were all about the same size. c the balloons repelled each other without touching. d the balloons are made of thin material. 9. the gravitational force between two objects will be greatest in which of the following situations? a both objects have small masses and are close together. b one object has a large mass, and the objects are close together. c both objects have large masses and are close together. d both objects have large masses, and they are far apart. 10. contact forces are forces acting upon two objects in contact. which of the following does not represent a contact force? a pushing an object on the floor b dropping a marble from the roof c kicking a soccer ball across a field d the weight of a pen on a table

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Physics, 12.07.2019 16:10, MyaaaMoney

Two objects of the same mass are in a room. at which of the following distances will the greatest gravitational force be exerted by one object on another? 2 m 4 m 6 m 8 m donna stretched a spring to increase its length. nearby in an electrical device, a positive charge attracted a negative charge. which statement is true about the spring and the negative charge? they both experienced contact forces. they both experienced non-contact forces. the spring experienced a contact force and the charge experienced a non-contact force. the spring experienced a non-contact force and the charge experienced a contact force.

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Chemistry, 31.08.2019 08:30, tayfaulk123

1.non contact forces can act at a distance true false 2.contact forces can act at a distance true false 3.which of the following are examples of non contact forces? choose all that apply. a.friction b.gravitational force c.magnetic force d.applied force 4.how does mass affect the amount of gravitational force between objects a. it doesn't b.less mass, more gravitational force c.more mass, more gravitational force 5.how does distance between objects affect the gravitational force between them? a.more distance, less gravitational force b.it doesn't c.less distance, less gravitational force 6.why would a persons weight different depending on its location? a.the type of clothes they are wearing would have an affect. b.their mass would change. c.the amount of gravitational pull would be different

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