Biology

Biology, 22.07.2019 16:00, lexibyrd120

Some forces act at a distance and thus do not require a. contact b. energy c. input d. effort

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Chemistry, 01.09.2019 23:30, gtemple22pdzs4j

Iwill give 54 points if you answer this question no joke see for yourself a student made the table shown to list some contact and non-contact forces. examples of forces contact forces non-contact forces the force of air resistance on falling objects the force applied by a student on a desk to move it the force applied by a compressed spring when it is released the force applied by an electromagnet on a wire which statement best explains why the table is incorrect? spring force is a force acting at a distance. air resistance is a force acting at a distance. the student and desk have to be in contact to apply the force. the electromagnet and wire have to be in contact to apply the force.

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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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Physics, 09.10.2019 00:30, peggycab4201

Some forces require direct contact,while others, like gravity, act at a distance

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Biology, 06.11.2019 23:31, tylonhouse362

Evaluate anna's list and her conclusion. do you agree or disagree, why or why not? a) anna is incorrect. all cellular processes require atp energy, including glycolysis, osmosis, and diffusion. b) anna is correct that all cellular processes that require energy require atp, but those that do not require energy occur without atp. however, the process of glycolysis requires the input of atp energy. c) anna is correct that all cellular processes that require energy require atp, but those that do not require energy occur without atp. her chart is accurate detailing processes requiring and not requiring atp energy. d) anna is correct that all cellular processes that require energy require atp, but those that do not require energy occur without atp. however, the process of osmosis requires the input of atp energy and the process of dna synthesis does not.

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