Physics

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When a car is weighed, it is driven slowly on a horizontal floor over a scale that records a reading ... Started by chads108	1 Replies 131 Views	Jul 29, 2018 by iceage
One line of evidence supporting the big bang theory is A) the nuclear fission products observed ... Started by tsand2	1 Replies 98 Views	Jul 29, 2018 by braelync
A large 75-kg lighting fixture can be hung from wires of identical size and shape made of aluminum, ... Started by Destiiny22	3 Replies 47 Views	Jul 29, 2018 by wuly
You lift a book slowly from the floor to the table. You then lift an identical book rapidly from the ... Started by lilldybug07	1 Replies 97 Views	Jul 29, 2018 by GCabra
Evidence for the big bang comes from A) observations of the pulsations of distant neutron stars. ... Started by rmenurse	1 Replies 49 Views	Jul 29, 2018 by irishcancer18
The big bang is thought to have occurred about A) 14 trillion years ago. B) 14 million years ... Started by bobthebuilder	1 Replies 124 Views	Jul 29, 2018 by akpaschal
The cosmic microwave background is A) the faint radiation that comes from the hydrogen atoms that ... Started by silviawilliams41	3 Replies 82 Views	Jul 29, 2018 by jojobee318
The big bang created A) space and time. B) matter and energy. C) Both of the above. D) None of ... Started by strangeaffliction	1 Replies 100 Views	Jul 29, 2018 by samiel-sayed
Space and time A) have always existed. B) were created at some time before the big bang. C) ... Started by bcretired	1 Replies 109 Views	Jul 29, 2018 by tandmlomax84
In an open universe, the angles of a triangle add up to A) more than 180 degrees. B) less than ... Started by Coya19@aol.com	1 Replies 100 Views	Jul 29, 2018 by tkempin
A 60-kg skier starts from rest from the top of a 50-m high slope. If the work done by friction is ... Started by sammy	3 Replies 113 Views	Jul 29, 2018 by makaylafy
A plastic block of dimensions 2.00 cm 3.00 cm 4.00 cm has a mass of 30.0 g. What is its density? ... Started by Pea0909berry	1 Replies 70 Views	Jul 29, 2018 by juwms
The evidence favors a universe whose overall geometry is A) closed. B) flat. C) cylindrical. D) ... Started by drink	1 Replies 112 Views	Jul 29, 2018 by bimper21
Two blocks are made of the same material, but one has twice the volume of the other block. Which ... Started by tiara099	1 Replies 77 Views	Jul 29, 2018 by Anonymous
The evidence favors a universe whose overall geometry is flat. That evidence comes from observations ... Started by silviawilliams41	3 Replies 197 Views	Jul 29, 2018 by Pamela.irrgang@yahoo.com
As one stretches a metal wire, which condition is reached first? A) the breaking point B) the ... Started by tth	1 Replies 40 Views	Jul 29, 2018 by cupcake16
Is everything in the universe expanding? A) No, the Milky Way galaxy is not expanding. B) No, ... Started by ARLKQ	1 Replies 87 Views	Jul 29, 2018 by cloudre37
A round coin has a diameter of 19.55 mm, a thickness of 1.55 mm, and a mass of 2.50 g. What is its ... Started by piesebel	1 Replies 162 Views	Jul 29, 2018 by kardosa007
A 100-kg person sits on a 5-kg bicycle. The force that the person exerts on the bicycle is borne ... Started by Frost2351	3 Replies 320 Views	Jul 29, 2018 by anoriega3
The amount of dark matter in the universe is A) about the same as the amount of visible matter. ... Started by nummyann	1 Replies 120 Views	Jul 29, 2018 by zogaridan
A 1321-kg car climbs a 5.0 slope at a constant speed of 80km/s Assuming that air resistance may be ... Started by Medesa	1 Replies 40 Views	Jul 29, 2018 by olderstudent
Dark matter is made of A) slow-moving magnetons that were created during the big bang. B) fast ... Started by @Brianna17	1 Replies 63 Views	Jul 29, 2018 by cclemon1
A 900-N person is standing on snowshoes. Each snowshoe has area 2500 cm2 and has negligible weight. ... Started by Brittanyd9008	3 Replies 79 Views	Jul 29, 2018 by meltdown117
The evidence that the universe is expanding at an accelerating rate comes from observations of A) ... Started by big1devin	1 Replies 69 Views	Jul 29, 2018 by cloud
The universe is made mostly of A) dark energy. B) dark matter. C) neutrinos. D) pizza. E) ... Started by jparksx	1 Replies 80 Views	Jul 29, 2018 by krakiolit